SP Boost Activated Exhaust Cut Out in Action!!

SoundPerformance · 05-01-2009, 06:50 AM

http://www.youtube.com/watch?v=m5gaAuGNk5M

So far we have picked up 36 RWHP and 30 ft lbs of TQ on a low boost pull! The results will be more dramatic as we turn up the boost!!

fstrnldr · 05-01-2009, 07:46 AM

Power gains sound good, but i have to ask, what is the exhaust set up that this is running through w/ out the cut out open?

Crom · 05-01-2009, 08:00 AM

Nice...

SoundPerformance · 05-01-2009, 08:04 AM

Quote:

Originally Posted by fstrnldr

Power gains sound good, but i have to ask, what is the exhaust set up that this is running through w/ out the cut out open?

This is a 3" cutout on a APEXi exhaust with a muffler that you can see straight through.... so it flows very well. This test is on a RB30 motor with a 67mm turbo that is in a 240!!

Quamen · 05-01-2009, 11:37 AM

Looks really nice guys! I am interested in this for my Z. I will have to talk with you guys a bit more about it when I come down to pick my motor up.

z33boi · 05-01-2009, 11:37 AM

awesome, when is the release date

Motormouth · 05-01-2009, 11:41 AM

price!

SoundPerformance · 05-01-2009, 02:19 PM

Quote:

Originally Posted by z33boi

awesome, when is the release date

Available now.... been selling like hotcakes!

The 3" valves are $349!!

tig488 · 05-01-2009, 08:31 PM

looks just like the ones ATP sells for 285. they are sold out tho. nice looking piece.

Motormouth · 05-01-2009, 09:00 PM

it's QTP. and the right way to have phrased that is 'QTP also offers electronic cutouts'.

and no they don't. SP's is boost activated... QTP offers manually activated electronic cutouts.

thom000001 · 05-01-2009, 10:14 PM

And SP's is ENGINEERED to work just like a wastegate, so it won't fail after a week.........

tom

Quote:

Originally Posted by Motormouth

it's QTP. and the right way to have phrased that is 'QTP also offers electronic cutouts'.

and no they don't. SP's is boost activated... QTP offers manually activated electronic cutouts.

SoundPerformance · 05-02-2009, 08:07 AM

Quote:

Originally Posted by tig488

looks just like the ones ATP sells for 285. they are sold out tho. nice looking piece.

ATP hasn't made any in YEARS... and ATPs are smaller.

fstrnldr · 05-02-2009, 08:58 AM

be interested to see how it does on a Z/G w/ 2.75"-3" dual exhaust.

GTM · 05-02-2009, 11:35 AM

I've been thinking about adding these to my car for a while, I can only imagine how loud it would be though

Nice job guys, I really like the fact that they aren't electronic.

-George
GT Motorsports

tig488 · 05-02-2009, 01:08 PM

Quote:

Originally Posted by Motormouth

it's QTP. and the right way to have phrased that is 'QTP also offers electronic cutouts'.

and no they don't. SP's is boost activated... QTP offers manually activated electronic cutouts.

QTP does infact make electronic cutouts, BUT....as I stated previously and correctly, ATP makes boost activated cutouts. so the right way for you to have phrased that....

heres a link to ATPs boost activated cutout. it does say they are out of stock tho, but when they do make them, they make 3" also.

http://www.atpturbo.com/Merchant2/me...egory_Code=BCS

SoundPerformance · 05-02-2009, 01:38 PM

Quote:

Originally Posted by tig488

QTP does infact make electronic cutouts, BUT....as I stated previously and correctly, ATP makes boost activated cutouts. so the right way for you to have phrased that....

heres a link to ATPs boost activated cutout. it does say they are out of stock tho, but when they do make them, they make 3" also.

http://www.atpturbo.com/Merchant2/me...egory_Code=BCS

ATP has not made any in over 2 years!!

tig488 · 05-02-2009, 08:48 PM

Quote:

Originally Posted by tig488

QTP does infact make electronic cutouts, BUT....as I stated previously and correctly, ATP used to make boost activated cutouts. so the right way for you to have phrased that....

heres a link to ATPs boost activated cutout. it does say they are out of stock tho, but when they do make them, they make 3" also.

http://www.atpturbo.com/Merchant2/me...egory_Code=BCS

sorry, edited.

Motormouth · 05-03-2009, 10:17 PM

yeah Tig, I realized that

thought you mispelled QTP since I didn't realize ATP made them. my bad.

tig488 · 05-04-2009, 10:58 AM

Quote:

Originally Posted by Motormouth

yeah Tig, I realized that

thought you mispelled QTP since I didn't realize ATP made them. my bad.

all good man.

MardiGrasMax · 05-23-2009, 01:03 PM

How does the use of a cut out skew the AFR in your tune? Id imagine that with the cut out open the AFR would drop a few tenths or so compared to when the cut out is closed because the motor is able to pump the exhaust more efficiently? Would this would also allow for a few more degrees of timing?