3 inch exhaust

boner1115 · 09-29-2005, 04:06 AM

So i was just curius to know about how much hp i should expect to gain on my stock 1987 turbo supra if i get a 3 inch exhaust system with out muffler or cat? thanks.

SupraMan1784 · 09-29-2005, 02:16 PM

u will get a lot of noise and probably 8hp increase? thats a guess...

suprra_girl · 09-29-2005, 02:18 PM

with intake and 3" exhaust like you mentioned i got 200whp on 5.8psi

but it depends on car, mileage, compression, alot of things

SupraMan1784 · 09-29-2005, 02:20 PM

its all about the tuning

rnoswal · 09-29-2005, 03:11 PM

I was just curious about how much it costs to get your car on the dyno and how long the whole procedure takes.

Russ

SupraMan1784 · 09-30-2005, 01:02 PM

to get the car on the dyno...depends on the place you go...the typical range is $75-150...maybe more...my friend got his rsx tuned and dynoed for $250.. i think it was a clubsport tune i dont remember...i got mine tuned for about $275, we went to different places, the procedure takes at least 2hrs...to set the process up, get the current map for the car, get the car on teh dyno, make sure all the connections are good, then makin at least one to three good runs, while in between those runs the map is tweaked, though i was able to help tweak the powerband so i could run the car the way i wanted to, thinking about it that i paid all that money and basically tuned it myself with some professional help, while my friend paid that much to get it tuned by a pro...like i said it all depends on where u go, some might be cheaper than others...but they also might be cheaper for a reason like maybe the guy doesnt know wut hes doin...just make sure u ask the right questions and not just...can i use your dyno? or can u tune my car?

WiseAssJester · 09-30-2005, 01:38 PM

The guy who dynoed my car was a jack ass. I paid 80 bucks for an hour.

He started in third the first time. Never went to WOT. Shifted on the machine, which caused my car to damn near come off the dyno more then once.

AND his machine was broken so it never read the appropriate HP, Torque, RPM range or MPH.

Moral of the story? Go to someone whom you know is good and decent.

SupraMan1784 · 09-30-2005, 03:02 PM

haha thaat sucks....at least he got one thing right...pulling on third gear, well you did get what you paid for...an $80 tune from a jackass...damn shifted on teh machine, he coulda killed someone....

09-29-2005, 04:06 AM	#1
boner1115 Intake Join Date: Sep 2005 Posts: 36	3 inch exhaust So i was just curius to know about how much hp i should expect to gain on my stock 1987 turbo supra if i get a 3 inch exhaust system with out muffler or cat? thanks.

09-29-2005, 02:16 PM	#2
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	u will get a lot of noise and probably 8hp increase? thats a guess... __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

09-29-2005, 02:18 PM	#3
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	with intake and 3" exhaust like you mentioned i got 200whp on 5.8psi but it depends on car, mileage, compression, alot of things __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

09-29-2005, 02:20 PM	#4
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	its all about the tuning __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

09-30-2005, 01:02 PM	#6
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	to get the car on the dyno...depends on the place you go...the typical range is $75-150...maybe more...my friend got his rsx tuned and dynoed for $250.. i think it was a clubsport tune i dont remember...i got mine tuned for about $275, we went to different places, the procedure takes at least 2hrs...to set the process up, get the current map for the car, get the car on teh dyno, make sure all the connections are good, then makin at least one to three good runs, while in between those runs the map is tweaked, though i was able to help tweak the powerband so i could run the car the way i wanted to, thinking about it that i paid all that money and basically tuned it myself with some professional help, while my friend paid that much to get it tuned by a pro...like i said it all depends on where u go, some might be cheaper than others...but they also might be cheaper for a reason like maybe the guy doesnt know wut hes doin...just make sure u ask the right questions and not just...can i use your dyno? or can u tune my car? __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

09-29-2005, 03:11 PM	#5
rnoswal Lexus & 550's Join Date: Apr 2005 Location: Bossier City LA Posts: 556	I was just curious about how much it costs to get your car on the dyno and how long the whole procedure takes. Russ

09-30-2005, 01:38 PM	#7
WiseAssJester 3" Exhaust Join Date: Sep 2005 Location: Reno Posts: 77	The guy who dynoed my car was a jack ass. I paid 80 bucks for an hour. He started in third the first time. Never went to WOT. Shifted on the machine, which caused my car to damn near come off the dyno more then once. AND his machine was broken so it never read the appropriate HP, Torque, RPM range or MPH. Moral of the story? Go to someone whom you know is good and decent.

09-30-2005, 03:02 PM	#8
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	haha thaat sucks....at least he got one thing right...pulling on third gear, well you did get what you paid for...an $80 tune from a jackass...damn shifted on teh machine, he coulda killed someone.... __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

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