i over looked this page as i glanced thew so this post is also in the 92-00 civic page. i just copied and pasted it here sorry for the mistake.

i have read another post about the h22 trans and it is not quite answering the questions im looking for. i have tried to ask on other sites and have gotten no response so im hoping that i can here.

i am building a 95dx for fwd unlimited class road racing. im hoping to hit around the 700 hp mark with a H22a(i know its over kill but i like to win with a blow out). but here is were i am stumped. what will be the most cost efective trany to put on, do i go with a built h22a lsd trans or do a h2b and run a built b18c5 trans.

before i get told i understand that to hit 700+hp is alot of work and no i do not want to run a k motor. it seems that every time i try to get the information that i am looking for all i get is put a k24 in but i just dont want to lol. im also looking for any part information that yall can give to me on the actual motor build.

also if yall have any advice for the moment i have a d15b7 in the car now with a stage 1 cam, custom exhaust, intake, chiped ecu and d16z6 tb. i have the good old honda idle jump and have replaced the tps fiv and tested the vacume lines intake welds iacv and am not pulling any codes. the next step im doing is and adjustable cam gear new timing belt and under drive pulley set. does any one have any advice as to how to fix this. it is anoying as hell sitting at a stop light and hearing your car jump idle from 1000 to 1600.

 

1. You're not putting down 700whp on a road course. Traction will be zilch.

2. If you did put 700whp down, it will take $4,000+ in parts to build a trans to hold it, regardless of it being either an H or a B.

3. No offense, but if you can't make a bolt on engine idle correctly you have a steep hill to climb to build and maintain a 700whp road race setup. Post your question on the idle in the 92-00 Civic or Tech/Misc forum.

 

first thing is first this is not my first high hp motor build it is just the first import i have done. this is my first honda i have ever owned and the issue is stumping mechanics o ya and not to mention ive been building moding and racing cars for almost 10 years so yes i do take it to offense. im not some moron that just posts for the hell of it i actually have put the effort into fixing my idle issue but since i have to receve smart *** remarks that i take as calling me stupid i guess ill go else were to get my issues fixed

 

why does everyone always have to hate? Did you replace your fitv with a used one? That could be your problem id might be all gunked also!

 

also have you compression tested or checked fluids? if you have checked EVERYTHING else it could be the head gasket, the d15b7 hg is sh*t. If it is replace it with a d16z6 they are much better!

 

It's not hate. I build transmissions everyday and I road race my car. Apparently he didn't even bother to read the actual answers to his questions, which is what he'll get from any shop that also specializes in transmissions.

 

i completely agree with you on the whole transmission part but who's to say this guy isn't rich? I also agree that's too much power for the purpose, but it also isn't your car!

 

Doesn't matter if he is rich or not.

For the trans to hold that power, he needs a gear set. Whether it is semi-helical or straight cut he will need a cuff. So without 5th gear he'll need a long FD or longer gears. That puts more stress on the trans and engine (and cooling will already be a problem with the engine). More stress on the trans means the gears need to be stronger. There are only two companies that will make a custom gearset. One will cost several thousand ($1,500 just for a FD that isn't rated to hold that kind of power) the other will cost even more as it requires 10 sets to be ordered. No problem if he is rich though. Then comes the clutch housing. He'll be running slicks (not the drag style slicks) to put 700whp down even on the straights and hammering gators as well as engine braking. The clutch housing will need to be replaced with a billet piece, which nobody makes, so it will have to be custom made. Since the gears are already being custom made, might as well make a custom trans case with a built in cuff and long shafts so he can incorporate a 5th gear. By the time that is all done, he could have spent a couple thousand dollars less and have an aftermarket trans that doesn't need any modifications.

Whether its my car or not is also not a point. I track my car, I build transmissions for guys that track their cars with only 500whp and they're barely putting power down. 500whp cars have a hard enough time staying cool on track. Look at the Pro RTA teams that make power, they can only run for a couple of laps in the summer. He'd be faster keeping it down around 250whp and cooling will be much easier (though he'll still have to work at it to perfect it). The short stretch of straight that he would actually be able to put down 700whp) on tracks with long straights) won't make up for the time lost around the track from loss of traction or putzing through the turns because he doesn't have the boost by gear and traction control setup right for the track and conditions (TC btw works by cutting the amount of power being made).

I'm starting to rant now so if the OP wants some more advice on the trans he can give some more info about the engine and car as it is needed for anything more than I've already told him.

 

I already said you were right so i don't see why you are still fighting your point. obviously that is to much power for road race, especially with the tires he would need just to have some traction. All i was saying is that if this guy has the money let him do as he pleases. btw how far are you from Nashville?

 

Not fighting it, just going into a bit of detail as others are reading this and some might find it in the future when searching. If he has money, then he needs to not use a Honda trans if he really does make 700whp and finds some way to put it down that others haven't. I'm 4.5 hours east of Nashville.

 

about time i get some real advice ive built drag cars for the past 10 years road racing is something new. no i am not rich but i am sponsered and i have enough money to play with. i am running auto x for the upcomeing year and maybe one more and then going to road racing. i am running a d15b7 atm as i said before. this is camed chiped and a few other things. since you know trans a hell of a lot better than i do can you tell me what the hell is wrong with my trany. i compleatly unload in second gear. i redline at 7200 and when i hit second i drop to about 2600. i have been told to replace it with a d16 trans something about the gears not meshing up correctly. also as i said i have built drag cars so as i said before im open to all advice just dont treat me like a moron as i am not. this is my first full build doing the work myself. i have acess to a shop that i can do most of the work and am sponsered with at 50% pay back on all parts and entry fees to any race that i enter. i am also looking for another sponser once i prove myself on the track. i am not new to the race track. i stupidly started street racing when i got my first car at the age of 16 (1987 supra) since then i have quite street racing and ran some drag track and now getting into controle driving. i have ran a couple drifting comps and decided that i need to step up my skills some more so please any help let me know. just dont treat me like an iddiot. sorry for my spelling i know its probly bad lol.

 

D16 EX trans will help a little bit. 1st is 3.250 in both of them (D15 and D16 EX). D15 2nd is 1.761 and D16 EX is 1.900/1.909 so the RPM will drop less. For autocross just an LSD and FD will help more than changing out to the stock D16 EX trans.

 

soon as i seen 700hp and auto cross i knew it was a waste of a thread. I would rethink the amound of power you wanna make. Run a conservitive power level but Build the motor properly to make and or take a good amount of extra power should you find out you are having a hard time keeping up in the class you want to run in. There are plenty of other factors you need to address before you can win anything. Do your research and make good decisions based on whats needed so your not broken all season.

 

Aquafina you have P/M