making 500+ rwhp...is my exhaust hurting me????
#1
making 500+ rwhp...is my exhaust hurting me????
i have a 96 camaro ss with a stock ls3 shortblock, TFS 220 as cast heads...vengeance vindicator cam...fast 92 intake unported...11.7cpr...custom 3 inch 90 intake elbow with a 85 mm MAF(silverado ss)down to the parking light(stock lt1 location) 1 7/8 arm headers with 3 inch arh catted y....slp 2otl catback(no cone of silence) ive heard my exhaust may be restricted since im making 500 rwhp. i didn't didn't know if a cut out in the i pipe would help or ORY...i kept the 2otl because its quiet for my neighborhood/kids......i know back in the ls1 days this exhaust flowed well but now that i have more cubes and such if that scenario changed...just feels like my car is being choked up after 6000 rpm...my tuner thinks my car needs a better air intake or exhaust....just want to hear your thoughts...thanks
#7
My intake tube is 3.5in but it has quit a few bends in it..the 4 inch I pipe with cut out has crossed my mind...also going to run 4 in air intake all the way...the 90angle off my intake is 4 in then the 85 maf then 3.5 tube into the stock lt1 cai location. Have to start somewhare I guess
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#11
10 Second Fun Car
iTrader: (7)
The 85mm maf is enough, but like others have said shorten the intake side. I would work on the merge on the y-pipe. Get a Flowmaster merge make your y pipe 3" into the merge and 4" out. Like others have said put a cutout on it. This is what I have and even have cats also. I have a Slp dual dual for street driving then open the cutout at the track. Its a good combo that I think has produced great results.
#13
My IAT readings arent all that bad. As far as a lid I cant fit an ls1 style lid because of the lower profile lt1 hood. Its getting freash air from behind the left side head light. ..im going to try 4 inch intake all the from drivers side fender. Wish I could run the ls1 air lid set up but I dont think cutting up an discontinued 96 ss slp hood.
#15
11 Second Club
iTrader: (18)
my car makes around 400rwhp converter unlocked and even with 3" duals it picks up ~.1 and ~1mph consistently by opening dual cutouts located about 10-12" behind each header collector
so I am always skeptical when people talk about a 3" single being anywhere close to adequate on even a lowly cammed car (even with a cutout)
heads and cam or forced induction = 4" or 3" duals IMO
so I am always skeptical when people talk about a 3" single being anywhere close to adequate on even a lowly cammed car (even with a cutout)
heads and cam or forced induction = 4" or 3" duals IMO