ramzan_anwar

Ive built my h2b in a dc2 chassis
Now I dont know what type of power I SHOULD be getting

Spec is
Stock h22a7 accord type r engine
Cold air intake
H2b tri y manifold
h2b qsd baffeled sump
Custom 2.5" exhaust system with decat
S80 98spec gearbox 4.7 final drive
Power steering delete
Balance shaft removed
Toda lightweight flywheel
6puk clutch

So how much WHP should I get out of my setup after a good long tune on a hondata s300 ecu

Ive already had it dyno'd but I think its high just wanted to check here first

And what percentage of drivetrain loss should I be loosing?

10psiLsEf2

230Hp

ramzan_anwar

you saying 230 WHEEL horse power or engine horsepower?

10psiLsEf2

Dynos dont measure crank/flywheel horsepower they measure wheel horse power.

Now stop beating around the bush and post your results and a dyno graph

ramzan_anwar

Lol I know that, just that everyone here in the uk go by engine horse power, im more into whp

But mate you hit the nail on the head! Very good guess

230.3 whp
177.2 tq

We even done a transmission loss check by doing a negative run on the dyno (coastdown run) which showed im losing 20.5% through the drivetrain.

Would you day these figures are realistic or over estimated on the dyno?

Al get a picture up in a min

ramzan_anwar

1998GsRIntegra

Given the setup, sounds reasonable to me. Keep in mind that dynos don't all read the same. Mustang dynos are known for reading "low". If you put down a number on a mustang dyno then went down the street to a dynojet or dyno dynamics, ect., you could see a 30whp pick up(just a guess based on your setup). Many times people get wrapped up in dyno numbers and forget that they(dynos) are nothing more than a tuning tool. Trap speed is a better indicator of whp.

ramzan_anwar

Yeah I know, every dyno reads different, mines a dynocom, only had it a a month or so still getting used to it, ive set it up to be as accurate and realistic as possible, thought it was reading high at first, people around here say that I cant get that much on the setup ive got, and I know thats what I was supposed to get, thats what h2b's are known for.

Next step is 12-5-1 high comp pistons and stage 3 cams and valvetrain, and 3inch exhaust!

Im aiming for 300... you think al get that?

1998GsRIntegra

Hard to say, are you going to sleeve it and punch it out to like 90mm then throw a 95mm or 97mm stroke crank in? 300whp is not a particularly easy thing to achieve NA. I'm doing up an h23a vtec engine right now and aiming for 300whp. The block is being sleeved and I'm slowly porting the head. I say slowly because its a 40-60 hour job and I don't have much free time. Ultimately it will be an 89mm x 95mm setup sitting at 15:1 compression static. Custom piston with the pin moved up so I can use an h22 length rod. Head will obviously be fully ported, shooting for 320 cfm on the intake at .500" and 230 cfm on the exhaust at .500" with stock sized valves. Either skunk pro3's or a custom grind from ddtech, I'm making a randy owens style intake manifold based off of a p13 lower half, and I'm also fabbing a custom header. I'll be tickled pink if I hit 300whp and I'll settle for 280. Maybe I'm aiming low.

92frostwhtdb2

torque seems alittle high, my h23a put out around 175ftlbs.im sure if you look around you'll see that 90mm h22s are putting out around 10ftlbs less.

10psiLsEf2

300 hp will be hard as stated above.

Imo put a jrsc on it.

ejcoupeman203

yea that dyno is reading pretty high u should be in the 210-220 range with ur setup unless u just got blessed with a crazy healthy out the box motor which is possible... and 300 is hard to get with the set up u want

SpoonH2B

x2