will go down as the most hated Throttle Body in history, I said it.
102MM Boost Issues
Thread Starter
Safety Car
Joined: Apr 2007
Posts: 3,582
Likes: 136
From: SoCal CA
Turbo-Geist, the NW tb opens from the bottom outward. So do you mean flipping it around so it opens from the top outward may help? Maybe the air has more leverage opening the tb that way so it stays open at WOT?
Instructor
Joined: May 2013
Posts: 111
Likes: 13
From: Dixon Il
Nick Williams
I bought the Nick Williams throttle body for the boosted application, 750.00$. Still had a reduced engine power problem. It wasn't until I put a stock LS2 throttle body on that it fixed my problem. My setup was an LSX 427 with an F1X pro charger.
Drifting
Joined: Feb 2010
Posts: 1,310
Likes: 99
From: Arlington Texas
I had a NW on my old setup and did not have issues. Mine was a little older NW 102 and actually had a c5 motor on it not a c6. 102 TB's also make a big difference on positive displacement blowers and less on centi blowers or turbos. The TB is before the blower and being sucked through and blown through.
I was told one time that pretty much all the power adders are good pushers but are bad suckers. Restricting the suction makes it worse.
I was told one time that pretty much all the power adders are good pushers but are bad suckers. Restricting the suction makes it worse.
Racer
Joined: May 2007
Posts: 478
Likes: 58
Le Mans Master
Joined: Jul 2010
Posts: 6,007
Likes: 723
You diffently are not the only one that had issues with it. I don't know how they get away with selling it as a boosted throttle body.
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Racer
Joined: May 2007
Posts: 478
Likes: 58
Does anybody know anything about this other 102mm throttle body from TPiS ?
https://www.tpis.com/pages/8_10_11
https://www.tpis.com/pages/8_10_11
Le Mans Master
Joined: Oct 2010
Posts: 7,373
Likes: 1,128
From: cold & windy
...
102 TB's also make a big difference on positive displacement blowers and less on centi blowers or turbos. The TB is before the blower and being sucked through and blown through.
I was told one time that pretty much all the power adders are good pushers but are bad suckers. Restricting the suction makes it worse.
102 TB's also make a big difference on positive displacement blowers and less on centi blowers or turbos. The TB is before the blower and being sucked through and blown through.
I was told one time that pretty much all the power adders are good pushers but are bad suckers. Restricting the suction makes it worse.
and i know it's from last year, but i found this searching for boost-friendly 102 TBs & wanted to clear up a little mis-information.
Supporting Vendor
Joined: Apr 2012
Posts: 2,671
Likes: 369
From: Forney TX
My .02 on the subject:
If you are N/A or have a PD-style blower, like a Maggie and want to gain a relative idea of how much there is to be gained with a throttle body swap, remove all restrictions from in front of your existing throttle body and get a good, high resolution vacuum gauge or even a MAP sensor and tap into the intake area behind the throttle body and log the difference between the readings with the engine off and the vacuum readings at WOT. Any vacuum will be a reflection of how much restriction to flow your throttle body is creating. The same can be done with tapping into the area between the filter and blower inlet on a centrifugal setup or a turbo setup.
As for issues with throttle bodies, I've run the fairly new Nick Williams throttle body that's designed for boost up to 39+psi so far without any issues.
Bret
If you are N/A or have a PD-style blower, like a Maggie and want to gain a relative idea of how much there is to be gained with a throttle body swap, remove all restrictions from in front of your existing throttle body and get a good, high resolution vacuum gauge or even a MAP sensor and tap into the intake area behind the throttle body and log the difference between the readings with the engine off and the vacuum readings at WOT. Any vacuum will be a reflection of how much restriction to flow your throttle body is creating. The same can be done with tapping into the area between the filter and blower inlet on a centrifugal setup or a turbo setup.
As for issues with throttle bodies, I've run the fairly new Nick Williams throttle body that's designed for boost up to 39+psi so far without any issues.
Bret
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Offering products from A&A Superchargers, East Coast Superchargers, Mechman Alternators, Mantic clutches, RPS clutches, Kooks Headers, Lakewood, LG, Brian Tooley Racing, Comp Cams, FAST, ARP, UPP Turbo systems, Wiseco, Callies, K1, MAST Motorsports, Haltech and many more. PM me for details.
Melting Slicks
Joined: Jul 2014
Posts: 2,356
Likes: 359
From: Virginia
Does anybody know anything about this other 102mm throttle body from TPiS ?
https://www.tpis.com/pages/8_10_11
https://www.tpis.com/pages/8_10_11
Drifting
Joined: Apr 2008
Posts: 1,687
Likes: 86
From: De Pere, WI
For me, it isn't worth it.. the problems with the NW throttle bodies - both the original and the "boost" model are well documented. I will stick with my 90mm LS2 throttle body that is pretty much flawless.