Most peoples problem is that they buy to small turbo for their power needs or too large turbo that will overshoot power target and then they complain lag. Hi gained on same engine 200rpm slower spool and 100hp more power with same 67mm compressor wheel. My friend swapped his crappy hx40 holset which he bought 500euros to BW EFR 9180 turbo which he bought 2000euros. There are faster spooling similar sized turbos which will produce more power than holset turbos but who wants to pay 3 x holset price for 500rpm faster spool and 50hp more power. But, when the temps drop below 10C/50F it will spin tires in 3rd, too.īut, VulvaS40T4,don't you agree that for street there are better turbos? Like MasterPower and BorgWarner turbos. On 3rd gear there is enough traction with these tires that I have. But if it's good road and be careful with the pedal, I think 0-62 in 5 sec should be possible. No traction before 100 km/h when I really floor it. Only couple of specialty shops sell it: it's pricey and there's no 24/7 availability. Yes, gasoline 98RON, because it's not possible to get E85 from gas stations.
At low boost (under 2,5 bar) it should not be a problem :) I think the stock can take up to 3 bar of boost. Haven't installed water injection, but I've been considering it. In dyno the main problem has been the poor quality of fuel. But, I've considered changing the gap just to test how much would it change. I've used plugs as they come from the box. Marko has helped me with good advice and has supplied me with quality injectors and valve springs. What spark gap are you running with the stock coils? It's been a long time.įirst dyno after the build, mapping to 2 bar Temp is decreasing when going faster at fullboost. Intake temp about 30C outside temp at fullboost. Walbro 255lph intank pump + 2x Walbro external pumpsĮGTs under 800C outside temps at fullboost run.
China 600x300圆3 intercooler and custom piping - no-boost/high-boost difference is just few degrees Stock T4 wastespark coils, BCR8ES spark plugs Custom 3" exhaust with 1 middle resonator and rear muffler - pretty quiet :) KKD Motorsports custom divided exhaust manifold Tial MVS 38mm external v-band wastegate (15psi spring) B4194T2 cylinder head with stock camshafts Managed to win at Estonian 1 mile race in A class (upto 2 litre turbo and 3,5 litres NA cars): 275 km/h / 171 mph.ħ500 rpm should take me to 300 km/h :) Unfortunately, for that I have to travel to Germany. Never broken down, I've driven over 8000 km's this year.
So, it's pretty good shape considering the age and rough winters it has lived through. Last 5 years it has been in my friends' garages where I've worked on it. I've driven about 160k km's with it as it was a daily driven car. I don't know exact mileage, because in Estonia car sellers used to fake these numbers. This car has mileage about 400 000+ km's. Decided to share my project with you guys. I've been around this forum and good old S40Concepts for many years.