The look of an 871 and dual quads on a jet boat can't be beat!
@TATER_244 жыл бұрын
The look of an 871 with duals on my skate board would be cool 😎
@joshmajors59634 жыл бұрын
Hope everyone stays safe over there. Wildfire going on and Richard still throwing information out. Definitely a dedicated man. Thank you sir.
@Turbo_Todd4 жыл бұрын
Can't beat the 8-71 looks! Love to see intercooler stacked under that blower!
@thisisyourcaptainspeaking22594 жыл бұрын
Yeah I agree, needs an intercooler for sure.
@Dylanschillin4 жыл бұрын
The carbs help cool the air charge
@ChielScape4 жыл бұрын
I want to see this test between an old roots and modern twin screw and analyze the efficiency. Im curious how much difference modern positive displacement tech makes.
@richardholdener17274 жыл бұрын
its a lot
@garyhosier47654 жыл бұрын
Dito
@Sir.VicsMasher4 жыл бұрын
I would too but only if they tested it against the latest twin screw like the Gen 5 Whipple due to its massive increase in efficiency similar to the new TVS 2650 design. Not as interested in what a 15+ year old Kenne Bell 2.1L or Gen 2 Whipple does.. Since Richard typically uses used parts maybe use a Hellcat twin screw.
@stevelacker3584 жыл бұрын
I agree, throwing a modern twin screw to the mix would be interesting. Obviously it’s the preferred tech for OEMs (Hellcat, etc.) these days, so let’s see how efficient it really is, and if it matches the Roots instant boost.
@daveoneal55444 жыл бұрын
@@richardholdener1727 factor in the higher boost of the 8-71 along with the parasitic loss it faced up top. Thus the reason for screw type and others. Think high compression engine, high torque starter.
@andrewmoss89094 жыл бұрын
Well pray for ya! Stay safe! AND GET THOSE CAMS OUTS!!!😉
@johnbehneman15462 жыл бұрын
I LOVE IT!!!! GREAT VIDEO RICHARD!!!!! THANKS FOR SHARING!!!! I LEARNED SO MUCH!!!!!
@Knightmare-gz9ls4 жыл бұрын
Love the torque of the roots blower. Plus great power. 900 and mid to upper 700ftlbs. Is a blast on the street.
@hblair373 жыл бұрын
I'm putting blower shop 8-71's on my 496's in my boat, this video was very informative. Thanks.
@Matt-sv2ft3 жыл бұрын
I’ve always been a fan of the roots blowers! Geuss I’m more old school. But I would love to see this same engine with the 8-71 and some nitrous shots! It’s the build I’m planning and saving for now!
@realhqcustoms4 жыл бұрын
Honestly I think the centrifugal blowers are great for a big cube application on the street, with less torque you can actually keep traction and have a slightly easier to control torque and HP curve! I've got one on my ls1 and honestly I need more cubes, but she cranks out over 700hp on the top end!
@bdugle14 жыл бұрын
You mentioned this combo was even stronger with a tunnel ram NA. I think it’s crying for that tunnel ram and two eBay GT-45s. With just a single 4-hole throttle body and injecting E85 in the plenum, pointed at the runners, this thing could make serious power on low boost without an intercooler. I found a nice 6.0 for my truck, but this gives me displacement envy!
@sean5comet4 жыл бұрын
Stroker kit for your 6.0...
@JohnnyAnderson14 жыл бұрын
@@sean5comet $$$$$$
@Jeremyv19804 жыл бұрын
No winners and no losers on this test. Looks goes to the roots, high end goes to the vortec. Both cool.
@LT3Fluffy4 жыл бұрын
We're in fairfield working on my turbo LS c10 in the soot haha stay safe richard. We can't lose you!
@Dr_Xyzt4 жыл бұрын
The power difference is so small. The roots blower is the cat's meow if you run alcohol to keep it cool. --That said, the centrifugal doesn't build boost all the time, and that keeps engine bay temperatures down when you're cruising. -- It's all up to what you're trying to do. The roots setup in a '74 C10 would be a sick burnout machine. -- The centrifugal setup would be sweet in a 90's GM truck. -- In a '68 Chevelle, I'd want nitrous oxide.....
@brentsmith91212 жыл бұрын
I love the instant punch of the roots blower I run a 8-71 on a 509 , but I can not go without saying that a Whipple Supercharger is hands down superior even the little 3.3 is strong power maker but the 5.0 liter is bad to the bone need more how about an 8.3 liter screw blower unbelievable
@cfrank9253 жыл бұрын
Omg!!! You are so close to me!! I'm in Martinez!!! Well if that's Vacaville, CA.
@morton22004 жыл бұрын
My theory is the Vortech takes less crankshaft power to run at an equivalent boost level than the 8-71. Therefore more total engine horsepower is produced at the same boost.
@Paulster24 жыл бұрын
Was going to state the 8-71 is going to have more parasitic losses than the Vortech (meaning the same thing, just said differently). The higher you spin the 8-71, the greater the losses.
@prestonedmonds41284 жыл бұрын
I like the centrifugal for a street car. It'd be easier to control the power on the street.
@turbo67gt4 жыл бұрын
Thanks Richard great job
@erenzoscroggins80564 жыл бұрын
Yessir Richard.... Let's keep the good content going baby💪🏾💪🏼💪🏻
@AndyR19824 жыл бұрын
Even the old b and m 144s were ok looking. There is a guy in town that has one on a 267 in a rat rod here in town. I asked him one time why a 267, he replied cuz it was free. Best answer ever
@thegdfp64473 жыл бұрын
Traction concerns may make the Vortech more practical, IMO
@3800TURBO4 жыл бұрын
Id run smaller pulleys on the centrifical blower and mount a 60mm waste gate on the charge pipe to regulate boost. Probably use a bigger procharger too.
@hotrodtodd76094 жыл бұрын
Hell yeah!!! That was Tom!! I haven’t seen him from the J&A days!
@fouadmohammed54184 жыл бұрын
So basically, the vortec centrifugal SC is easier on the engine on daily driving, but when you push it hard it out perfumes the roots SC on high RPM
@bloodasp904 жыл бұрын
glad to hear that you didnt have to evacuate, but sadly my friends ranch over the hill was completely lost. Thankfully he didnt loose any of his horses.
@1080sucks4 жыл бұрын
I like the centrifugal as it is stealthy (under hood) BUT its a close run thing. Boost is good
@rogerraff68233 жыл бұрын
Love all your videos
@MsKatjie4 жыл бұрын
Very impressive NA power, Richard. Stay safe.
@trentdawg28324 жыл бұрын
Up here in Vacaville. ......I always thought you guys were in so.cal.......be safe brother, best to you and your family.......my eliminator eagle 230 has a gm vortec 8.1 fuel injected with that being said I'd take the centrifugal supercharger. ....it's a prop drive boat if that matters! !!!!!
@OzarksWildman4 жыл бұрын
Mmta mmta mmta mmta ner na na ner, me beatboxing the intro lol!
@johnparker17873 жыл бұрын
Hi,Richard, thanks for all your tests. I think the 335 heads would outperform 315s if you had more lift on cam and more rpm. Look how hp was still climbing at end of pull on boost. How about a 1471 and 385 heads? I'm sick can't get enough.
@edvisme4 жыл бұрын
Oh yea, a Roots 8-71 sticking up out of the hood of my 83 Caprice Classic Wagon would be awesome.
@TwoLotus24 жыл бұрын
93 cougar 302 here. Nobody could tell--sleeper wars.. It would be a little bit tacky though. Maybe if I painted it yellow and put a Cougar emblem on it......
@ericlarkin65634 жыл бұрын
We are dealing with the same thing here in Sonoma County, be safe, great videos!
@mgbchuck65274 жыл бұрын
Nice Richard! Roots FTW! (good luck with the fires, my employer had to evacuate his ranch near Vacaville yesterday). So your in Vacaville, I'm in Hayward, I'd love to show you my MGB someday
@richardholdener17274 жыл бұрын
I spent a lot of time in an MGB back in high school with my Buddy Bobby
@mgbchuck65274 жыл бұрын
@@richardholdener1727 imagine how much fun that MGB would of been with better suspension, better brakes, better tires, a full chassis and a healthy SBC---BIG FUN (it's funny how many people had experience with MGBs back in the day)(I've never ridden in a stock one)
@danmyers93724 жыл бұрын
Had a boss with an MG back in the 70’s. Car spent half its life in repair shops. Because it’s BRITISH!!
@mgbchuck65274 жыл бұрын
@@danmyers9372 --------my MGB has NO MG under it's body--basically I fixed it
@OCofthe34 жыл бұрын
Richard, at 12 min in your talk about the boost level vs power output. This gets into efficiency of the supercharger and is a topic you never go into. It would be great if you could cover that.
@Sir.VicsMasher4 жыл бұрын
I would love to see this test performed with a Ram Jet, Pro Flo or similar front feed EFI intake for us guys that want to keep our factory hoods.
@ni_wink844 жыл бұрын
Hope all is well for you Richard! I have tons of friends in town there and it looks bad, stay safe and I hope you and yours don’t have any issues
@MLFranklin4 жыл бұрын
Very educational. Thanks for sharing these!
@madmod4 жыл бұрын
I've driven a kb supercharged small block ford but never a centri car. The positive displacement has that torque shelf which is a blast on the street. The centri seems like it would feel more tame for most driving but ultimately be the faster combo both on track and street.
@RyTrapp04 жыл бұрын
The main difference is that the centrifugals feel like they keep pulling harder as RPM rises, while PD blowers will fall off sooner and you can feel that. No better, no worse, just different.
@inspectorbusiness48924 жыл бұрын
Comes down to what you have for traction and class rules. Big tires or small. And vehicle weight. If I was running the street with factory style suspension. Centrifugal. Pro street I would choose the 8-71.
@andyharman30223 жыл бұрын
For a boat application, the dyno test needs to go down to below 3000 rpm to see if the engine has enough torque to get the boat onto plane. The Roots blower has the advantage there.
@MinionnitrousBHPtoBHP4 жыл бұрын
Y would u dislike this sort of vids lol not a engine man lol
@guyconnell22504 жыл бұрын
The old over the road trucker in me would just have to have the Roots. That relatively flat low end torque curve (line) is just too hard to resist. In a boat, especially, that solid, consistent low end is very nice to get a skier out of the water.
@CrankAddict4 жыл бұрын
since a roots blower packs in more air at all rpms, it makes a small block perform like a big block. How about testing a 700hp blown small block vs a 700 hp big block and compare efficiencies? What would work better on the street? Which would get better gas mileage. Are they really equal?
@RyTrapp04 жыл бұрын
@Mod Zozer You're going to have a difficult time beating a BBC anywhere on the curve with a SBC I believe - even if we reduce the bore size of the BB to eliminate that breathing advantage, BB heads(and intakes for that matter) are still intended from the start to flow more air than SB heads. You could conceivably do this pretty easily with a 396 BBC and a 400 SBC; the 396 has a 4.094 bore X 3.760 stroke(even better - the '70-'72 '396' was actually a 402 with a 4.124 bore) while the 400 has a 4.120 bore X 3.750 stroke, that's pretty damn close while being able to use cheap OEM/stock replacement components. Without putting the worst factory head on the BB and any nice race head on the SB, I don't see how you make up the head flow difference of the BB. And, if you're going to put such drastically different heads on them, then what are we really testing? This would be 100% dependent on the heads, full stop. With all else being [basically] equal, whatever you do with the head choices is going to determine the result. And, if you use heads intended for similar use for each engine, then the BB should come out on top 10/10. Space is a luxury for moving air, it allows for larger ports, larger valves/more valves, better valve placement, etc. Lets not overlook the fact that the BB has bigger heads for a reason - because it can support significantly more cubes. As such, it also weighs more than an SB of comparable displacement, which is of course the advantage of a large displacement SB. While it's an interesting experiment, I don't suspect it would make a difference to anyone's plans; if you're building a BBC to only 396 cubes, you're doing it wrong!
@ScottysChev4 жыл бұрын
Hey always love your videos! This build is very close to mine. My dream is 1000hp with a 871( dont have the blower yet) what was the pulley ratio for the 871?
@robertkeime49074 жыл бұрын
Great video
@norcalguy08694 жыл бұрын
That’s nuts. Been subscribed and watching your videos for a while now and had no idea you were in Vacaville. I was in Vacaville for a while but just moved back to Dixon. Maybe I’ll see ya around 👍🏼
@AndyFromm4 жыл бұрын
Blow the vortex into the roots...
@bill21784 жыл бұрын
Best of both worlds
@motorosso33494 жыл бұрын
Blow the Vortec through an intercooler into the Roots. Probably would need lower compression (7.5:1) if the boost is much higher. Actually, this test shows how much power it takes to spin the Roots unit compared to the Vortec.
@AndyFromm4 жыл бұрын
@@motorosso3349 roots shovels the air in, centrifugal pumps it in. There are better & worse designes over the years for efficiency. banks talked about some real bad ones that made boost but basically gave no hp improvement over na they made so much heat chopping the air.
@bill21784 жыл бұрын
@@motorosso3349 some of it is parasitic loss id say more is heat loss
@hom2404 жыл бұрын
It all depends if you want to be able to use it or not. Nothing gathers a following (mostly by those with blue and red lights on top) like a big old school roots blower sticking out of the hood.
@pauldulworth27684 жыл бұрын
It would be cool to see the 8-71 compared to the Whipple 510AX or 510R.
@bill21784 жыл бұрын
Watch gale banks duramax vidys
@RyTrapp04 жыл бұрын
The Monster Truck engine series... kzfaq.info/sun/PLwtmrqcWzLtRXpEFXeXa3YF-L0xSK2Ml2 ...he tested a roots, a screw, a turbo, and the turbo being blown into the screw and I believe the roots as well. Note that they did cook the roots because it was a tight roots intended for fuel draw through to help control temperature, and they were running it dry of course. Still useful data though. The notable episode IMO though is the methanol injection test - Banks shows evidence that meth injection can create detonation, impressive test, and a bit of a reality check on just dumping different fuels into our engines.
@JaMarvelousjmar4 жыл бұрын
Hoping you and your family stay safe
@FPS12003 жыл бұрын
Excellent video! It would be interesting to see the centrifugal tested against a non production 8-71. I have a Don Hampton prepped Hampton Super II and it's built very different than the Weiand. Not disrespecting the Weiand at all, but the Hampton is on another level.
@KLMALLENDER4 жыл бұрын
Something not adding up, an 8.4to1 496 with a 250 degree cam is not usually that strong when sucking air below 4000 revs.
@ForneyRider3 жыл бұрын
114 overlap and 500ci
@superrodder20024 жыл бұрын
I'd like to see the boost temperatures. That really shows how efficient the blower is
@bartpang4 жыл бұрын
The roots will be cooler because of the charge cooling from the carbs.
@richardholdener17274 жыл бұрын
the vortech is a blow through so also charge cooling
@bartpang4 жыл бұрын
@@richardholdener1727 my point was that you can't really compare the boost temps because the roots is being cooled from the start.
@RyTrapp04 жыл бұрын
@@bartpang It doesn't matter at what point the cooling of the compressed air charge occurs, it's still getting cooled either way. You can run draw through on a centrifugal - won't make a difference whether the carb is in front of or behind the blower. Hell, roots blowers have been blown through carbs before, back before mounting them in the 'vee' became the norm.
@bartpang4 жыл бұрын
@@RyTrapp0 How do you measure it? That was his question. My point was you can't get a real comparable measurement.
@tahcogunworks4 жыл бұрын
I used to race in jet boat classes. The roots is preferred due to the lower rpms run.
@Flitzer5144 жыл бұрын
Centrifugal all day long. Especially with an inter-cooler.
@LT3Fluffy4 жыл бұрын
Centrifugal or turbo for sure. No need to pump that much air with the roots
@LT3Fluffy4 жыл бұрын
Roots=huge heat pump. Centrifugal all the way. Especially in something traction limited like a truck
@tmoneyme4 жыл бұрын
Hey Richard, how about doing a comparison of a SBC, BBC and LS all the same size. Something like 427-454? or something like two sbc 427, one with the 3.875 vs 4.00 stroke and the a 427 BBC? if you have the parts laying around. 12-13 compression with good cam solid roller cam
@rcairforceone4 жыл бұрын
The LS will make more power, the heads are that good
@tmoneyme4 жыл бұрын
All depends.... Airflow doesn't always dictate more hp. But I agree the ls heads are a better starting point than the traditional 23 degree heads.
@RyTrapp04 жыл бұрын
He never said to use factory parts(what would be the point again?) - aftermarket big block heads are still king, and they'll own every area of the curve. There's nothing 'special' about LSx heads, they're just newer/more modern than the 1960s-early 1990s junk; a similarly modern SBC head can keep up, and a similarly modern BBC head will continue pulling a lead.
@travispfannmuller77174 жыл бұрын
I doubt the sb head will keep up but a hybrid with ls heads might run away with it? It would be interesting for sure
@tmoneyme4 жыл бұрын
@@RyTrapp0 agree, 15 degree aftermarket head vs stock ls would most likely do better. But a good set of 23 degree heads that flow 330 - 340, with enough area in the head can still produce 700+ on a sbc. For example AFR 245. Which is still on the verge of being maxed out on 3.875 - 4.00 stroke at 7000rpm
@johnparrish92154 жыл бұрын
A 496 with a Blower only needs one more ingredient, a 1940 Coupe of any make to drop it in.
@escuelaviejafarms4 жыл бұрын
8-71 for the win, lol!
@funfun80954 жыл бұрын
HANDS Holdener! 👐
@funfun80954 жыл бұрын
@64NovaSS TT Nope.
@danmyers93724 жыл бұрын
Wow, surprised to hear you are up in Vacaville. I always assumed you were in So CA due to your connection with Westech. You are a LONG ways from Westech!
@danmyers93724 жыл бұрын
BTW, now I understand why you went through Fresno...
@lloydholt65114 жыл бұрын
Great test! My two cents. For a boat the 8-71. For an auto the centrifugal blower. For bragging and show you can’t beat the roots.
@larryh77604 жыл бұрын
A nice polished 8-71 would look great in my 1971 Chevelle. That's my pick.
@MrAPCProductions4 жыл бұрын
But why 8-71 when there is a 14-71? Also in boat application use the lake as your A2W cooler water.
@wisheye14 жыл бұрын
Great combo for my riding mower😎
@zarkeh30134 жыл бұрын
another aspect is maintenance or repair. the roots setup has the carbs exposed while the centrifugal had it enclosed. I hate carbs, cos they always frick up on me and that's how I think. ... the roots blower looks cooler though, heh.
@jasonmarshall73744 жыл бұрын
I would have liked to see him play with the pulleys on both set ups. Overdrive the roots a bit and watch it take off!! Overdrive the centrifugal and it will most likely match the roots down low.
@godzillasballs4 жыл бұрын
Wow. I’d be happy with that NA motor.
@andyharman30224 жыл бұрын
Have you ever tried driving a centrifugal with an extremely high drive ratio, then using a blowoff valve to limit the boost at the top end? That way it could match the low speed boost of a Roots.
@jsomething24 жыл бұрын
that idea has been around a while but by using a huge throttle body in the intake side of the supercharger. since as you block off the air intake it doesn't take as much power to spin the blower compared to venting the air after being compressed. but I don't know if it's been done in real life since once you get it on the car, if you want to make less power you can just short shift it. but be cool to see on a dyno.
@richardholdener17274 жыл бұрын
yes-the Realtime Acura NSX employed that in World Challenge
@andyharman30224 жыл бұрын
@@richardholdener1727 I wondered why that car was so fast!
@kwb22604 жыл бұрын
In truth, for a street application I’ve been disappointed by most of the centrifugal supercharged vehicles I’ve driven unless they’re pulleyed down on a light vehicle but they do usually make a big number! I would like to drive one with a wastegate to bring the boost in sooner. Personally I’ll take the roots any day!
@rexwarren30524 жыл бұрын
My favorite motor love the power big block's scream
@thisisyourcaptainspeaking22594 жыл бұрын
I'd choose the roots blower for the wow factor but also for the low range performance b/c I'm not gonna run high RPM near as much as under 5,000RPM cruising around. Hopefully the jet pump has the capacity, getting close to practical limits with those HP levels there, I'm not sure... I can tell you not having a leg dragging in the water and scraping across sand bars, really does make a difference in about every way. But if you really want fast (lots of money going into this, looks like), perhaps direct drive is a better choice than jet pump? For even more cool factor IMO, twin turbos. Make sure there's room for an intercooler, well worth the trouble.
@unclesquirrel69514 жыл бұрын
92.8k mr 🐿
@wakjob9614 жыл бұрын
I'd like to see an ignition system dyno shoot out...on any engine! Those 'Progression Ignition' dizzy's look interesting as hell.
@peterlyons43894 жыл бұрын
Sound Please Us motor people need to hear 👂🏼 how it sounds !!!!!!
@stevezielonko13864 жыл бұрын
I like the low end torque of the roots. And it looks way cooler.
@chezleymcdonald24814 жыл бұрын
Best video
@danatkins67514 жыл бұрын
The e85 would cool the charge and should allow it to make more power !
@adrianlaverick80404 жыл бұрын
Hope you guys stay safe and the fire doesn't get out of hand.
@russelljackson70344 жыл бұрын
Right on
@plumbs71994 жыл бұрын
8/71 !!
@neckcrank26634 жыл бұрын
When I clicked on the like button it was #671!
@vicmccartin4 жыл бұрын
Ill settle it. I choose TURBO lol. The roots do look like a wet dream on anything. But just as i told my buddy yesterday the gmc buses back in the day used the 671 and 871 in city buses a diesel with a blower badass had one at our local scrap yard when i was a kid. Id go roots for something big and heavy like a 4x4 suburban or something for the brute low end instant power. But if i had something light with traction problems outta the hole like a fox body or something id go centrifugal to avoid more spinning off the line. But at the end of the day turbos are skynet
@daveoneal55444 жыл бұрын
Pete Jackson gears and a carb scoop. The looks and the sound without to the fun
@glenstacey37404 жыл бұрын
Awesome! Cheers🍻
@rokkebill4 жыл бұрын
Can you take a stock bigblock chevy and throw boost at it until it grenades please ??? I’d love to see how much it’ll take 😍😍
@bengerlach99583 жыл бұрын
I was thinking how a 366 tall deck big block would respond. It's not a common build but it does come with forged internals factory
@MunCompetition4 жыл бұрын
No twin-turbo testing? It would be awesome to see this compare to super chargers.
@ryanmalin4 жыл бұрын
i had a neighbor with a chevelle with a 396. He put heads on that were too big with the wrong cam. It would only run WOT. It would stall driving on the street.
@robc78124 жыл бұрын
i can see the reason for the roots charger even in a jet boat... lets be real 90 percent of the time youre at part throttle... so would take less throttle on a quick jump... unless something is a full on race only application torque is king
@bcbloc024 жыл бұрын
Thanks for the testing! Would have been nice to log intake temps as well.
@Hitman-ds1ei4 жыл бұрын
Air density is the key
@TheRoguelement Жыл бұрын
I'm not installing any Box over my carburetor and for the cash spent I'll take the Roots blower over the Centrif, blower anyday .
@KingJT80 Жыл бұрын
that centi blower will outrun the roots. it looks really cool and does make power but its old tech. the YSI wasnt even being pushed on pump gas. that box is what it makes it not need an intercooler with a carb. 1200+HP vs doing that with the 8-71 without race gas? good luck...just get a 8.2 whipple if you want the look
@jimkillen10654 жыл бұрын
My brother has one of those 496 blower in a Honda Integra , pretty cool street car . Lot more zip than My old 302 camaro lol
@paulchilders99694 жыл бұрын
oh boy. Some inaccuracies in your statement there. Integra is a product of the Acura division of Honda, so it's not a Honda Integra. Also 496 blower? So are you trying to say he put an 8-71 on a 4 cylinder? Or are you trying to say he put a blown big block Chevy in an Integra? You can pick one, but I will give you a hint, they are both lies.
@@jonathanwhitehead4763 Thank you for providing evidence of why you don't want to do this.
@RyTrapp04 жыл бұрын
@@paulchilders9969 We get it - you ran your mouth about stuff you don't know about. It happens, you'll get over it.
@paulchilders99694 жыл бұрын
@@RyTrapp0 No I didn't. I just didn't think anyone would be so stupid as to actually ruin a car by doing that. 1. It won't make a pass at the drag strip, at least not one that couldn't be beat by any decent turbo 4 cyl. 2. It is now totally insufferable as a street car. It's nothing more than a novelty.
@christianmeeks44304 жыл бұрын
When I saw this I was really hoping it was a Vortec 8100 496. Lol
@angelovasilikos79804 жыл бұрын
Hope all is well with what’s going on Richard. I love the roots supercharger for the looks. Question. you are running 8 1/2 compression to keep it safe on this marine application. What if you were running it N/A? What would be a safe compression then? 9.5?
@richardholdener17274 жыл бұрын
at least
@justinfee8194 жыл бұрын
@@richardholdener1727 would 10:1.1 be ok on E85 this is what I'm building now 👍
@menoaz Жыл бұрын
I wonder if two more pounds of boost on 871 will push it over a thousand horsepower on pump gas.