Chevy Trailblazer SS Forum banner

1 - 20 of 232 Posts

·
Registered
Joined
·
158 Posts
Discussion Starter · #1 · (Edited)
Peak Speed Shop is a new Supporting Vendor.

We RADICAL port Trailblazer SS and GM Gen IV 6.0L/6.2L Truck Intake Manifolds! Gain 15-20 rwhp!

BEFORE


AFTER


Cory Harris from LS2PortWorks had perfected a method for completely opening up that hole deep in the plenum and removing additional barriers that restricted air flow in the TBSS and Gen IV (6.0L, 6.2L) truck manifolds. Cory's customers typically saw 15 rwhp / 15 rwtq gains and some of the 6.2L customers with headers, a significant cam and ported heads reported as high as a 20 rwhp gain.

Many of you truck guys were saddened when Cory announced he was no longer porting the truck manifolds. We are happy to announce that for the past four months we have been working with Cory to learn his techniques for porting these manifolds in order to pick up where he left off. In order to perform the porting, the top of the manifold is removed and then reattached once the porting is complete.

The cost for RADICAL porting of your manifold is just $425. We can port your throttle body at the same time for just $75 additional.

TBSS owners... we have some ported manifolds in our inventory. If you don't want your vehicle down while you wait to send your manifold back and forth, simply pay a refundable core charge to have us ship one from inventory and return yours once the job is complete.

Order on our web site at:
http://peakspeedshop.com/Zen_Cart/index.php?main_page=index&cPath=65_69
 

·
WANNABE SS OWNER
Trailblazer SS 2wd
Joined
·
16,025 Posts
:popcorn3:
 

·
Registered
Joined
·
158 Posts
Discussion Starter · #5 ·
Have you learned what NOT to do from his prior work as well? :cheers1:
Yes we have. One primary example is on the manifolds for the L92 engines that have a wider and flatter top, we have added internal supports to prevent the possibility of any flexing. This had been an isolated issue that he faced, not on the TBSS manifold, but on the L92 manifold.

 

·
Premium Member
TrailblazerSS
Joined
·
3,290 Posts
Yes we have. One primary example is on the manifolds for the L92 engines that have a wider and flatter top, we have added internal supports to prevent the possibility of any flexing. This had been an isolated issue that he faced, not on the TBSS manifold, but on the L92 manifold.

So you guys are porting these intakes and putting the supports in all of them so there won't be any more flexing from removing the old supports in there.
 

·
Premium Member
TrailblazerSS
Joined
·
4,849 Posts
Doesn't the tbss stock manifold flow about 280cfm? What are the flow #'s after the port work is done?
 

·
Premium Member
2007 TBSS AWD
Joined
·
31,504 Posts
Yes we have. One primary example is on the manifolds for the L92 engines that have a wider and flatter top, we have added internal supports to prevent the possibility of any flexing. This had been an isolated issue that he faced, not on the TBSS manifold, but on the L92 manifold.


What type of cfm are you seeing on the L92 and LS2 truck manifolds before and after porting?
 

·
TT AWD TBSS Jeep
TT AWD SS Pwrd Jeep
Joined
·
5,825 Posts
What type of cfm are you seeing on the L92 and LS2 truck manifolds before and after porting?

That is an excellent question!!
 

·
Registered
Joined
·
158 Posts
Discussion Starter · #13 · (Edited)
So you guys are porting these intakes and putting the supports in all of them so there won't be any more flexing from removing the old supports in there.
From our research and in talking with Cory, flexing was never an issue on the TBSS LS2 intake. It was only an isolated issue on the L92. The supports go into the Radical ported L92 manifolds.
 

·
Premium Member
2007 TBSS AWD
Joined
·
31,504 Posts
From our research and in talking with Corrie, flexing was never an issue on the TBSS LS2 intake. It was only an isolated issue on the L92. The supports go into the Radical ported L92 manifolds.
Have you tested the manifold s with retrofitted supports in a boosted application?
 

·
Premium Member
'06 AWD
Joined
·
5,094 Posts
Thanks, but I want flow numbers not chassis dyno numbers. Do they have a flow bench in house?
Matt the question posed is dyno results/flow. Which was partially answered "we don't in house dyno yet go by what people say" and he/they never answered the second part of the question. Which leads me to believe no they don't or yes they do but it was a marginal #. I don't think your gonna get you're q answered..
 
1 - 20 of 232 Posts
Top