Travo

I was reading in a huge forum post about these.. apparently the HPI exhaust manifolds do have a performance increase. http://www.skylinesaustralia.com/forums/Ma...l&hl=6boost

Hi guys, My Plenum has had the chop and block treatment. It is a factory plenum but has been made into a forward facing plenum. My question though... Where the air inlet use to be, it has been blocked and someone has put a sensor in there. What would this be used for? after market ecu? Please ask for a picture if you need, am at work at the moment so i cant post one until tonight. Cheers, -Trav

woah, 4 bovs?!?! can you take a pic i want to see this haha I'm still new to this forum but i cant imagine it been bad as its just releasing air - your bov noise might be alot quiter with 4 bovs sharing the release though?

Yes, correct - one of the circular ring clamp bits hadnt been put on "straight" and that is where it blew off from. However, I'm still curious, would that constant pressure from not having a bov eventually damage the turbo?

Actually, I didnt have a BOV fitted to my new forward facing plenum / intercooler piping - I put my foot down around the corner from the garage and my I/C piping blew off! So im thinking if my piping hadn't blown of under pressure, surely it would hurt the turbo in the long run?

I have a s2 front bar, I used a angle grinder to cut out the center bar peices - was like a hot knife through butter! As soon as i cut them out, the whole thing warped like it had lost the peices that keep it rigid. Once i stuck it on the car it was fine though... gl

Actually yes - throttle response, very good increase from about 60km+ (thats best place i noticed it and the reason i did it... god how i forget that?) Coolant line is not needed if you move the TB up the front of the plenum. just disconnect and join the coolant lines together. I'll throw a pick up of mine shortly.

I mean it is the factory style plenum, however someone has already done what VB- said above and gave it the chop and move treatment. I can post a pic when I get home if still want to see..

I have actually purchased a factory plenum with this mod and fitted it to my car - there is no change in performance (good or bad) that I have noticed if running most stock items. It makes the engine bay look so much cleaner and installing a FMIC means you dont have to cut your fan down either.. good fun sorting out the accelerator cable though

wow, after reading that entire thread.. i'm not sure what the best anything is to use So i have a rb25det s2, the best thing to do this with is - r32 ignitor and mitsu v6 coils??

I'll be down there but not racing unfortunately.. no license anymore..