New STS F-body Turbo System!!!
04-23-2009, 11:47 PM
#24
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I think the new design addresses many issues with the origonal STS kit. The subframe cold pipe is a nice touch. I also like how the cold piping runs to the far side of the intercooler after passing the cat converter/exhaust for better ambient cooling.
The 3x things that stick out to me are that (1). The BOV is before the intercooler (thought that was a big no-no), (2). the 180 degree bend over the axle still bends low before running the driver frame rail. That was actually the lowest portion of my origonal kit. Appears to be the same now. You'd think that even with the LCA nearby the pipe could bend 90 degrees toward the center of the car and avoid the dip toward the ground. That would add 1" clearance. With a 180 degree bend in the system, the added bend from 45 to 90 degrees wouldn't noticably affect performance. (3). STS is still using the "bilge pump" for a return instead of a pump designed for oil (ie Mocal).
Overall, I'm glad to see they addressed the "non-intercooled" BS that STS touted for years + the improved pipe layout. I'd give it a B+.
The 3x things that stick out to me are that (1). The BOV is before the intercooler (thought that was a big no-no), (2). the 180 degree bend over the axle still bends low before running the driver frame rail. That was actually the lowest portion of my origonal kit. Appears to be the same now. You'd think that even with the LCA nearby the pipe could bend 90 degrees toward the center of the car and avoid the dip toward the ground. That would add 1" clearance. With a 180 degree bend in the system, the added bend from 45 to 90 degrees wouldn't noticably affect performance. (3). STS is still using the "bilge pump" for a return instead of a pump designed for oil (ie Mocal).
Overall, I'm glad to see they addressed the "non-intercooled" BS that STS touted for years + the improved pipe layout. I'd give it a B+.
04-24-2009, 06:25 AM
#25
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Schantin, I agree with all of your stated above. I will also say that my BOV is before my intercooler. I never moved it after installing my IC. It seems that it just makes a whooshing sound back and forth...seems to me that pressure relieves, it closes, it builds back up and opens...etc. Haven't had any problems at all *knock on wood
04-24-2009, 10:12 AM
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Schantin, I agree with all of your stated above. I will also say that my BOV is before my intercooler. I never moved it after installing my IC. It seems that it just makes a whooshing sound back and forth...seems to me that pressure relieves, it closes, it builds back up and opens...etc. Haven't had any problems at all *knock on wood
04-24-2009, 10:14 AM
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04-24-2009, 08:31 PM
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looks great! I have the old system with a few different modifications. My BOV is in fact between the IC and TB and I got rid of that hideous over-the-axle pipe and replaced it with the "tube" which helped considerably IMO. I also had a special I pipe that went over the axle to feed into the turbo to help with some ground clearance... looked great IMO
I since December switched to a 370 and KYTP front mount kit and swapping to a TH400 with a 3k stall, we'll see how it stacks up against the STS kit which made 513/525 with cam and M6 with 7.5psi
I since December switched to a 370 and KYTP front mount kit and swapping to a TH400 with a 3k stall, we'll see how it stacks up against the STS kit which made 513/525 with cam and M6 with 7.5psi
04-24-2009, 11:02 PM
#35
04-25-2009, 12:38 AM
#38
Pipe Size (2.25 vs. 2) Question OK, not to hyjack, but, I have a noob STS question:
INFO
My STS kit has a 2" OD pipe right out of the turbo that opens up to 2.25 OD at the end of the first 90 degree turn, and then stays at the 2.25" OD for the whole journey under the car.
QUESTION
If ground clearence under an f body is an issue, then why open up the pipe from 2" to 2.25"?
Is 2" too small? Is there a different reason which trumps ground clearence and makes expanding the pipe a good idea?
LMK - Thanks!
INFO
My STS kit has a 2" OD pipe right out of the turbo that opens up to 2.25 OD at the end of the first 90 degree turn, and then stays at the 2.25" OD for the whole journey under the car.
QUESTION
If ground clearence under an f body is an issue, then why open up the pipe from 2" to 2.25"?
Is 2" too small? Is there a different reason which trumps ground clearence and makes expanding the pipe a good idea?
LMK - Thanks!
04-25-2009, 07:28 AM
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OK, not to hyjack, but, I have a noob STS question:
INFO
My STS kit has a 2" OD pipe right out of the turbo that opens up to 2.25 OD at the end of the first 90 degree turn, and then stays at the 2.25" OD for the whole journey under the car.
QUESTION
If ground clearence under an f body is an issue, then why open up the pipe from 2" to 2.25"?
Is 2" too small? Is there a different reason which trumps ground clearence and makes expanding the pipe a good idea?
LMK - Thanks!
INFO
My STS kit has a 2" OD pipe right out of the turbo that opens up to 2.25 OD at the end of the first 90 degree turn, and then stays at the 2.25" OD for the whole journey under the car.
QUESTION
If ground clearence under an f body is an issue, then why open up the pipe from 2" to 2.25"?
Is 2" too small? Is there a different reason which trumps ground clearence and makes expanding the pipe a good idea?
LMK - Thanks!
Last edited by 2nd Gen Fl 'bird; 04-25-2009 at 07:29 AM. Reason: wrong spelling
04-25-2009, 03:35 PM
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