its top secret give me your email addres and i will send you a pic off my engineohc_turbo said:post some pics up of the fabricated inlet, i know this is one of the major restrictions of the engine, have you done anything else ie headwork to get this figure
i made the inlet myself and there is no clearance probs and the fuel pump can cope,Mark said:yeah i've seen a inlet manifold almost identical to that on ebay before,
can the original fuel pump flow enough fuel for 110 bhp? are there any clearance issues with the bonnet?
where did you get this manifold made?
May I be the first to say...........Ed said:What RPM did it make 110bhp at, And also what was the torque.
Dave waker does know his stuff, BUT I have to say this sounds unrealistic to me, the inlet manifold you have shown is better but its not great expecially for top end power. Its my belief you would need throttle bodies/carbs to get his power from this engine, as well as very extensive head work. Find me any car anywhere that is producing over 100bhp/litre on 2vpc engine, with a single carb.
An extremly (and I do mean extremely, insane cams, carbs headflowing very narrow power band etc) tuned 1.0 engine will make about 80foot/lb. Its not possible without forced induction to exceed this, and you would need to be making this torque at 7250 rpm to make 110bhp. Being slightly more (but not much) sensible at 75lb/foot, you would need to rev to 7800 rpm ish (for those who think yeah I can rev my engine that high, its not that simple its VERY hard to move peak torque up this high. A standard MA10 makes peak torque around 3600 rpm). All of what I have said are known facts of engine limitations.
If your able to prove otherwise feel free, but saying you have maid 110bhp from and engine with 14.6cc more than a normal MA10T and standard head IMO is impossible.
its not on standard intake though is it its massive,iam sorry ed but if you have never done this many mod to an ma12 you wont no,you do sound like you no your sums but iam telling you what my car puts out and thats thatEd said:Just too add this is the torque requied at 6200 RPM. NOT the max torque of the engine. The MA12 makes 68lb @ 3200 and only 56lb/ft@5600 rpm. At 6200 rpm on standard intake etc it would be even less.
nice to see the carbs i have even seen R1 carb on ma12 but in my racing class we have to run all air/fuel mixture through a single intake hole size of 32mm restricter plateEd said:dont get me wrong its _VERY_ nice to see that the MA12 is being developed, and its even better to have somone here who has done it. IMO others here should learn from you and do the same its very long over due. So in that sense its great that you have joined the forum to post, before I come over too critical thanks for doing so - you like everyone else is most welcome here. Oh and I have tried things with the MA12.. I welded a set of CBR600 carbs to an inlet manifold and gave it ago. Initial impressions were very good, however it did need jetting, but it sounded amazing.