I found a KILLER header for my H22!

[Losiracer2]

i would do a 3 in flex at the end of that header 3 in cat then 3 inch all the way back till your muffler that way if you ever need/want to upgrade to full 3 inch everything is already there

I think I'm just gonna keep it 2.5, that way I won't have to junk my Greddy catback and my magnaflow muffler. not to mention a properly made 3" exhaust costs $$$ which I don't have a TON of right now.

make sure you put a short little flexpipe on there, or maybe a donut gasket with spring bolts.

yep, a 6" flexpipe I"m thinking and then after that a 3 to 2.5 collector.

[owequitit]

going to a 2.5 would probably be the better choice. a 3" exhaust on a not so heavily modded is a choker. a loss of some good power. 3" belongs on a turbo. you need so much backpressure to keep the ciphon of gas going. with minor bolt on 2.25 is the size. more agressive power adders and you shouldn't exceed 2.5.

No.

Backpressure has nothing to do with siphoning gas...

Also, it has been shown on dynos that stock H22's LOVE 2.5" exhaust, and mild-semi aggressive bolt on H22's very quickly require 3" exhaust.

[Losiracer2]

Well, I managed to get the header to bolt up to my car and drive on it for a little while....but theres good news and bad news...

Bad:

I found out I have a bad injector in cyl. one...or something's up w/ it just by looking at the exhaust ports in the header:





Good news, its all welded and ready to put on my car, decided to reduce it to 2.5" before the cat for less of a headache. So I used a 2.5" flexpipe and then found a 2.5" hi flow cat and connected it that way along w/ making a flange for my Catback to bolt right up to












^^^^mainly the middle two are what were leaking. Probably because of the clamps ONLY being on the sides and not all the way across all 4 primaries. I might have my friend weld a bracket across all 4 on the top header portion and the DP section and then have individual screws tightening each one to make it a better seal.

[ric3rboi23]

that is a trippy ass header.. :O

[Losiracer2]

that is a trippy ass header.. :O

yeah, but I think I'll put it on once I get my injector issue all figured out...cyl. 1 is kicking my ass...it shouldn't be like that right? should be black like the other 3?

[djcaz_aom]

Well, I managed to get the header to bolt up to my car and drive on it for a little while....but theres good news and bad news...

Bad:

I just need to find a better way to seal the DP to header slip fit connection b/c it was leaking pretty bad even w/ those screws on the sides holding it together, so that's gonna be hard.


^^^^mainly the middle two are what were leaking. Probably because of the clamps ONLY being on the sides and not all the way across all 4 primaries. I might have my friend weld a bracket across all 4 on the top header portion and the DP section and then have individual screws tightening each one to make it a better seal.

They are called U-Tabs. Here is a link. I think these would look cleaner.

U-Tabs

[djcaz_aom]

No.

Backpressure has nothing to do with siphoning gas...

Also, it has been shown on dynos that stock H22's LOVE 2.5" exhaust, and mild-semi aggressive bolt on H22's very quickly require 3" exhaust.

I also agree with this statement. As soon as you bolt on cams, you will need a larger exhaust. Itis the nature of the H22 beast.

[yoshi_h22a]

i also had a holeshot header. the power was nice, but i had some problems with it. to start off my header was originally a two-piece, but it had been welded when i bought it making the install a bitch to say the least. i used a 92 prelude crossmember to keep the front mount and cut off a small portion to fit the header. i used spring bolts, but i see u already have a flex pipe, so ur ok to go. the main problem i had was the header would rub with the alternator which damaged the voltage regulator. i replaced three alternators because of it. hopefully u don't have the same problem, but if you do hopefully u could find a solution. goodluck

[Losiracer2]

i also had a holeshot header. the power was nice, but i had some problems with it. to start off my header was originally a two-piece, but it had been welded when i bought it making the install a bitch to say the least. i used a 92 prelude crossmember to keep the front mount and cut off a small portion to fit the header. i used spring bolts, but i see u already have a flex pipe, so ur ok to go. the main problem i had was the header would rub with the alternator which damaged the voltage regulator. i replaced three alternators because of it. hopefully u don't have the same problem, but if you do hopefully u could find a solution. goodluck

yeah mine was right on the alt. resting against it, but it was on the heatsink of the alt. and not the main body. But it did however touch the alt. plug, that rubber portion and melted it somewhat along w/ my ES front insert, but i managed to move the front motor mount a little to the left by drilling the bracket holes slightly bigger and using a diff. lower clearance nut for the front motor mount bolt.

Idk, until I find a way to fix the exhaust leak, its not going back on my car. Along w/ that lean cyl. 1 too....that needs to be taken care of too.