gary96360

i just did the isr mod today and i used rubber couplings found in the plumbing section at a store. i was wondering, can the rubber melt? i wasted too much money on this 24 bucks for 2 couplers. are the automotive rubber couplers cheaper? the first two pics are from mine and the 3rd one is cyberman's. i don't know how he got that 2.5 inch intake hose over that 3 inch pvc pipe.

Bobzombie

Typically automotive couplers are a thread reinforced silicone. But the plumbing rubber is not the same compound as any auto ones that are rubber.
I used the same couplers that you used on my saturn when I was 16 and they never melted or changed. You should be fine but keep an eye on it there is a lot more heat on those couplers then my 4cyl fwd

njkev7

I'd be careful, I'm almost positive that plumbing rubber will release toxic fumes when heated well beyond normal conditions.

gary96360

i checked out the coupler today after i drove about 30 mins and it was a little bit warm. i will have to find a place where they sell auto couplers., my local auto store dont carry them.

gary96360

ok after driving for 2 days with the mod i dont feel any difference in power because i got used to it. but i went up a hill today which i can barely go up in 3rd but today i went up the hill accelerating in 3rd. pretty good mod for the buck.