new power

Hi Nick,

We learnt ALOT about cams and valve timing from your engine, as you know we had a huge amount more torque than your peak now, but it compromised top end power above 6000 RPM. With long discussions with Grant, we believe we can get it even better with different cams and 48mm TB's giving you back the torque lost at low RPM and giving even better power at the top end. Also the 320is manifold you now have may have sapped some torque over what we did have before we changed the exhaust cam and that manifold.

Put it this way, we compromised on torque for high end power and vica-versa. Knowing what the car is used for (every day runner) and knowing the need for that S14 7500+RPM grin factor engine note, I believe we have got the best compromise between torque and power.

We are pleased we used the pistons we did as we have a huge amount of adjustment available with the cam timing, much more than a standard engine which we have found to be very limiting with the exhaust cam on valve to piston clearance.

Was up at Castle Combe today at the Classic Car track day, thought about calling you and seeing if you were up for a blast.. :D

Enjoy it mate!

Paul.

stevesingo wrote: Sounds good, but THIS THREAD IS USELESS WITHOUT PICS/GRAPH Steve

good point Steve, i'll see what i can do

some of you will probably remember my car having a afm delete, carbon air plenum and unichip fitted by paul shep, all with huge improvements on how my little 195 had performed previous.

since then there has been more work done - the engine whilst it was solid, had done a few miles and was a bit tired so i decided to have it rebuilt and uprated in the process. GMS, Grant Motorsport from Bristol did the work. Grant is a known VW engine builder and is very clever with head porting, spending lots of time and care on heads which then provide max HP and lbft!

in addition mine has Wossner piston, blasted rods, balanced crank and all new shells, seals and bearings throughout - the engine was completed with near standard cams whilst i ran it in, something which i did very meticulously.

since then the car has been back to Paul and Grant - Grant has thoroughly checked it all and fitted two 284 cams. Paul and Grant have spent hours on the engine and the Dyno to get optimum cam timing and mapping to provide an engine that is both usable (as it is a daily car) but provides that m3 grin factor when you use it....which it does. the result is a car which with standard 46mm throttles will rev to just short of 8k and makes 258 hp and 197 lbft of torque.!!

Grant and Paul have worked very very hard on my car - both have lots of enthusiasm to provide the best possible and both have done a few other things to it while the engine has been out.

i am very pleased with the car and would highly recomend Grant Motorsport and Paul Shepherd to anyone.

thanks again chaps