What are these and do I need them??

secla · Post by **secla** » Sat Oct 13, 2012 7:55 pm

Thats what most people do with conversions
Simplifies it

Danni22 · Post by **Danni22** » Sat Oct 13, 2012 7:56 pm

That's exactly what I'm after doing... I don't think there's anything els to remove

'92 Si VTEC · Post by **jjmartin349571** » Sat Oct 13, 2012 8:30 pm

Oh dear, if the part in photo 1 is the carbon canister for the fuel return line then I may be in trouble, I took it out my Accord as it was making getting the new engine in difficult

I seem to remember cutting hoses left right and centre to get it out

Danni22 · Post by **Danni22** » Sat Oct 13, 2012 8:56 pm

Yehh I did that haha but should be ok without it I'm removing it lol

Post by **NafemanNathan** » Sat Oct 13, 2012 11:10 pm

Yeah you can remove the carbon canister. This does vent the fuel tank gases back into the IM once purged, but obviously isn't essential. You can either plug the hose, let it vent directly into your throttle body or let it just vent out into the engine bay/under the car. There are obviously pros and cons of any of these... Nobody knows which is best

Then yes you can do away with the IAB control unit if you go for a skunk2 IM obviously. I'm assuming you're going to be getting a full tune afterwards? Otherwise you will loose power just fitting an S2 IM.

Danni22 · Post by **Danni22** » Sat Oct 13, 2012 11:11 pm

NafemanNathan wrote:Yeah you can remove the carbon canister. This does vent the fuel tank gases back into the IM once purged, but obviously isn't essential. You can either plug the hose, let it vent directly into your throttle body or let it just vent out into the engine bay/under the car. There are obviously pros and cons of any of these... Nobody knows which is best

Then yes you can do away with the IAB control unit if you go for a skunk2 IM obviously. I'm assuming you're going to be getting a full tune afterwards? Otherwise you will loose power just fitting an S2 IM.

Yehhh I was going to go for obd1 and get it chipped or do you just mean a normal tune up?

Danni22 · Post by **Danni22** » Sat Oct 13, 2012 11:13 pm

If I decide to leave the skunk IM do I need to keep the IAB unit?? I don't no anywhere local I coud get it mapped

mercutio · Post by **mercutio** » Sat Oct 13, 2012 11:14 pm

or you could get an atr manifold?

Post by **NafemanNathan** » Sat Oct 13, 2012 11:20 pm

If you go for a Skunk2 IM then you'll need a proper tune (ie. A P28 or P72 ecu with something like Hondata), not a "chip" (don't know if that's what you meant). Same if you go for the ATR IM and they are basically the same (Single runners and all that). If you keep the standard H22a Prelude dual runner IM then you need to keep the IABs and control units to get the best out of that IM and your engine. Basically before 4700ish rpm you run on single runners (best for low down torque), then past 4700ish rpm the butterflies open the second lot of runners for higher revs and in preparation fo vtec.

Danni22 · Post by **Danni22** » Sat Oct 13, 2012 11:27 pm

Sorry yehh that's what I ment.. So ill need to convert to Obd1 and have a full tune.. Where could I get this done or will it be a case of send off the ecu??