Thank you very much for this information!! I wish I have had it before, but anyway, I will consider this, to make a new exhaust in the future. For other side, the CR that we measured is actually 9:1 which is incomprehensible low, and I did’t fit high compression pistons because the budget, which certainly was an error. So my aim was to change the short block for the 39E, keeping the same head, but It looks that you know very well this engine, and definetly another way is to fit Wossner pistons… I need to think about it. Many thanks for your comments!!😍

@@monzagse If that is wheel horsepower and the CR is 9:1 then the calculated 85% VE should be adjusted to... 90% wow What's the 186 number, wheel or calculated engine power? If it's calculated, then it adds up perfectly to the standard 75% VE and the only gain from the cam and induction is the RPM rise.

@@PenkillerDIY Unfortunately 186hp it’s the calculated engine power!😅

@@monzagse ouch! Maybe this is NE motor 9.2:1 or LE, or something in between. NE is 9.2 compared to 30E 9.4, but the NE has bigger ports. 9:1 calculated static CR? Or 9 bar on the gauge, let's be clear, because I'm shocked.

@@PenkillerDIY Is a 30E block with a R3E head code. So it should have a 9,4:1 CR, even higher, because the head plane was milled until the edge of the valves. 9:1 CR was measured in static. I don’t know how is it posible, maybe the valves seats are too much deep…🤷🏻‍♂️

Well, the limit of the 3.0 CIH engine is around 230cv, so I think that I need to do some more adjustments to achieve this power. The next step will be to increment capacity untill 3.9 litre with a stroker crankshaft. I like to keep the original engine, no turbos, no swaps. Is my way🤷🏻‍♂️😉

@@monzagseNice car, nice performance for a standard shortblock. I am currently building a 3.6-12v CIH based on the Opel Lotus crankshaft. With Toyota conrods and Yamaha pistons ;-) . Planning to use the 46001105 camshaft from Catcams.

@@filipjacobs68 what a crazy Frankenstein mate!!😂 But it sounds very interesting!! I’m preparing a 3.9 12v CIH also, so we have to exchange information!!👍🏼

@@filipjacobs68 Can you be more precise on which conrods and pistons you will use? Es very interesting I think!😍

@@monzagse Conrods 3SGTE Toyota and pistons Pro-x Yamaha XT600

The lower engine is stock, but the head was ported with bigger valves and rally camshaft. I hope than I will have more power with a bit more work.🤞🏼

@@monzagse I live in Germany with 2 Opel Monza A2 3.0 and 3.6. In which country do you live with your Monza GSE ?

@@YachtmasterV8 I’m from Spain!

@@monzagse Which Camshaft and which intake system are you running? It sounds and looks just awesome😍👍

@@mariusminnerop1926 Thank you!! The intake is a individual throttle bodies system from BMW M3 e46. The cam is 316° from CATCams.

It depens on the condition and the market. In germany a mint condition 30E auto, could cost around 10K I think.

@@monzagse okay thank you

Gracias!! De un pueblo cerca de Barcelona si!😉

More, a 204hp motor won't make much past 150hp on the wheels. It's on the level of the N/A 2jz and past y2k 3.0 BMWs... With basically the stock exhaust or worse...

El tocho de 12v!!

Yo tuve un Omega 3000 12v , te lo digo porque lo conozco, la culata de hierro fundido pesa casi como el bloke entero . Un amigo tiene un Monza GSE de color gris por restaurar y me dice que hasta que no consiga un motor 24v no lo echa a andar.

@@Corvidoextraviado Es una opcion, aunque por peso andaran a la par. Yo espero obtener una potencia similar al 24v pero con los itb y el volante aligerado la entrega de potencia es mucho mas inmediata. Para el futuro tengo un bloque con cigueñal de carrera larga que cubica 3.9

Coooorrecto. Me acuerdo que aquel motor tenia un volante de inercia super pesado , estirabas en segunda , metias tercera y soltabas embrague sin dar gas y de la inercia que tenia eso te pegaba un tiron para alante bestial 🤣🤣🤣 , eso si. El peso del volante le ayudaba mucho en la autopista y a 240 yo lo llegue a poner . Con el volante aligerado no se yo si llegaria a alcanzar esa velocidad....