I just got back from the dyno!

Setup:
95 Honda Civic
95 JDM H22
Thermal Exhaust
AEM Cold Air Intake

Here is a picture of the stock manifold with the 2.5" collector


Here is the Imagine Engineering header:


Here is the dyno results:


I put the car up on the dyno and ran the car with the factory manifold 2 or 3 times to get it warmed up and get some consistant runs. Run#4 was a little lower than #3, so I used #3 for the comparison. Took off the factory manifold and put on the Imagine Engineering header. It made a max gain of 17 hp @ 7100 rpm and 12 ft-lbs @ 6700 rpm!!! I am going to get a fuel pressure regluator later this week. I didn't have anything to adjust or tune. My air/fuel was a little lean (ranged from 15:1 to 14:1) on both headers and I think I can get more power out of it if I make it a little richer. I'm guessing it will be around 185 with a regulator and maybe 185-190 with a VAFC. Installation wasn't too bad. A 35.5" alternator belt is needed and a little triming of the lip on the lower crossmember and lower radiator support is needed to get the header up through.

I highly recommend this header and can't wait to get the fuel all tuned out and get it to the track. 13's for sure!

Thanks to Mike @ Imagine Engineering for helping me out and hosting my pics.

 

Good deal man. Keep us posted.

 

*sigh* Am I the only one still with a Greddy header!!?!?

Good numbers man. And yeah bumping the fuel will make a big difference..

 

you like it too huh?

 

Yeah, can't beat the hp gain for the price.

BTW: I'm a trial user so I can't accept or send pm's. You can email me at h22aaron@yahoo.com

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jason kiDD &raquo;</TD></TR><TR><TD CLASS="quote">*sigh* Am I the only one still with a Greddy header!!?!?</TD></TR></TABLE>

No dude whatever type of header I have, is just a basic 4-2-1 header, so don't feel left out.

 

i thought those were the dtr headers for a sec.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by junglerunna &raquo;</TD></TR><TR><TD CLASS="quote">Good deal man. Keep us posted.</TD></TR></TABLE>

 

Awesome. I can't wait for XMAS!!!

 

 

Damn, that header made a pretty big difference !

 

No problem Aaron. Definitely need to get that fpr and get back to the dyno and tune out the fuel. Maybe you'll see a 20+ difference then.

 

me like!!!! mmmm more power...

 

how much was that header, will it fit a 4g prelude?

 

 

How tight is the header to the oil pan?

 

It only hangs about a 1/2 orso off the oil pan.

I totally forgot about the fuel pump when I did the swap. I was talking to some guys and we realized I still have the factory Civic pump. I've got a Walbro 190 lph pump and that should definitely help richen things up.

 

More pictures here:
https://honda-tech.com/zerothread?id=689198


This and more...

 

NICE!!