Need some "Guesstimates"
Thread Starter
Pro
Joined: Jun 2006
Posts: 508
Likes: 1
From: Miami Florida
Need some "Guesstimates"
Since you experts are pretty good at advice for picking up horsepower, could you possibly give me a "guesstimate" on about how much I have picked up from the following mod's I have made so far:
1989 Coupe stock at 240 hp. w/auto trans.
Heddman Hedders (shorty style connected to Corsa cat back system and hi flow cat (new)
Crane 1.6.1 roller rockers
3.07 posi rear end
KN filter with air box lid cut open.
The car runs really well and although I haven't run it in the 1/4 or 1/8th mile yet, it feels seat of the pants stronger than before the mod's. I haven't hit a dyno tune yet either. Could I get some more from a little work on the chip?
Steve
1989 Coupe stock at 240 hp. w/auto trans.
Heddman Hedders (shorty style connected to Corsa cat back system and hi flow cat (new)
Crane 1.6.1 roller rockers
3.07 posi rear end
KN filter with air box lid cut open.
The car runs really well and although I haven't run it in the 1/4 or 1/8th mile yet, it feels seat of the pants stronger than before the mod's. I haven't hit a dyno tune yet either. Could I get some more from a little work on the chip?
Steve
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
Shorty headers are not going to yeild much if any HP...besides it's basically what the stock exhaust manifolds are, just not as pretty. The exhaust system & RR's might get you 10-15 HP over the stock setup. I wouldn't worry with a chip tune until you have gone into the engine a little more. This is unless you what to tune it for fans on/off times, VATS/EGR/AIR delete, ect.
Advanced
Joined: Sep 2006
Posts: 98
Likes: 0
From: Wadsworth OH
Since you experts are pretty good at advice for picking up horsepower, could you possibly give me a "guesstimate" on about how much I have picked up from the following mod's I have made so far:
1989 Coupe stock at 240 hp. w/auto trans.
Heddman Hedders (shorty style connected to Corsa cat back system and hi flow cat (new)
Crane 1.6.1 roller rockers
3.07 posi rear end
KN filter with air box lid cut open.
The car runs really well and although I haven't run it in the 1/4 or 1/8th mile yet, it feels seat of the pants stronger than before the mod's. I haven't hit a dyno tune yet either. Could I get some more from a little work on the chip?
Steve
1989 Coupe stock at 240 hp. w/auto trans.
Heddman Hedders (shorty style connected to Corsa cat back system and hi flow cat (new)
Crane 1.6.1 roller rockers
3.07 posi rear end
KN filter with air box lid cut open.
The car runs really well and although I haven't run it in the 1/4 or 1/8th mile yet, it feels seat of the pants stronger than before the mod's. I haven't hit a dyno tune yet either. Could I get some more from a little work on the chip?
Steve
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Shorty headers = 0
Corsa cat back = 10
1.6 Crane (full) RR's = 10
3.07 rear end = 0 your 1/4 times will improve but no added HP
K&N w/ cut lid = 2
Maximum gain 25 CHP 21 RWHP
A chip at this point isn't worth the money.
Corsa cat back = 10
1.6 Crane (full) RR's = 10
3.07 rear end = 0 your 1/4 times will improve but no added HP
K&N w/ cut lid = 2
Maximum gain 25 CHP 21 RWHP
A chip at this point isn't worth the money.
Thread Starter
Pro
Joined: Jun 2006
Posts: 508
Likes: 1
From: Miami Florida
Thanks for the input! I will see how it all performs next week when I take it to the strip. I have my stock times and mph to compare to. I'll post how much difference those mod's made.
Steve
Steve
