spintech

*Tmoses* · 03-31-2009, 10:19 PM

first off i was thinking my exhaust was loud but after chief said his spintech was louder it got me to thinking!

1)If i wanted to run true dual super pro spintech mufflers out the ass, what would be the optimum pipe sizing with headers to acheieve the best performance and sound possible?
high flow cats? X pipe? pipe sizing?

2)would the performance be anywhere close to that of nismo of jba?

thanks in advance TT members?

Farley · 03-31-2009, 10:26 PM

Piping I would say that you would want to go 2.25. As far as the numbers it will put out most will probably say not as much but no one has done a before and after dyno yet so cant really tell you

*Tmoses* · 03-31-2009, 10:29 PM

so 2.25'' all the way through? even with headers?

Farley · 03-31-2009, 10:41 PM

I believe so that way you keep you low end. I know that there are lots of guys out there running headers with 2.25 piping. Dont go any bigger than 2.5 though thats what they all say. I think the NISMO has 2.25 piping as well

*Tmoses* · 03-31-2009, 10:43 PM

i would love to see a truedual spintech dyno!

Farley · 03-31-2009, 10:46 PM

Me too. Wish I knew someone that coulld have hooked it up for me so I could have done it

*Tmoses* · 03-31-2009, 10:48 PM

i want performance and the spintech is suppose to be one of the better flowing mufflers!

jgrace750 · 03-31-2009, 11:31 PM

Did you check out my dyno vids that Warp09 put up?

**BetteroffRed** · 04-01-2009, 12:31 AM

Quote:

Originally Posted by Tmoses

i would love to see a truedual spintech dyno!

Quote:

Originally Posted by Farley

Me too. Wish I knew someone that coulld have hooked it up for me so I could have done it

I am working on it. If my buddy comes through, I will have the dynos for free!! I love the whole college learning thing.

*Tmoses* · 04-01-2009, 05:27 AM

Quote:

Originally Posted by jgrace750

Did you check out my dyno vids that Warp09 put up?

do you have a link?

jgrace750 · 04-01-2009, 12:57 PM

Here you go: Jgrace Dyno Tune- Video

*Tmoses* · 04-01-2009, 04:43 PM

ide like to talk more about it if you dont mind!

so is it a true dual super pro spintech's with a X pipe? and what size piping? 2.25'' all the way through?

jgrace750 · 04-01-2009, 05:14 PM

Quote:

Originally Posted by Tmoses

ide like to talk more about it if you dont mind!

so is it a true dual super pro spintech's with a X pipe? and what size piping? 2.25'' all the way through?

You got it! The catback is 2.25" diameter all the way back, including the x-pipe, mufflers, and turndowns.

*Tmoses* · 04-01-2009, 05:18 PM

ive read about turn downs what exactly is the? the thing right after the muffler where the exhaust ends?

and what was your HP and torque pre spintech?

jgrace750 · 04-01-2009, 07:14 PM

Quote:

Originally Posted by Tmoses

ive read about turn downs what exactly is the? the thing right after the muffler where the exhaust ends?

and what was your HP and torque pre spintech?

turndowns are the short pipes coming out of the muffler that dump the exhaust gases down at the ground. As for output pre-spintech I am unsure. All I know is the butt dyno likes the topend a lot more! It pulls so much harder from 4,500 rpm than with the y-pipe.