bigreds10 Posted April 13, 2015 Report Share Posted April 13, 2015 I'm pretty sure the NW uses the LS3 motor and I've heard some do have that issue, sorry to hear yours is one of them Eddie. I took my LS2 90 off and shipped it to TPIS last weekend. They use your LS2 motor and are supposedly guaranteed to work under high boost applications. You may want to look into that as well. I'm kinda glad I seen this before I ordered a NW 102 tb.... I plan on running about 14psi on my ls3 tvs2300 for the 408ci ..... I Def don't want it slamming shut under high boost Quote Link to comment Share on other sites More sharing options...
12secss e.mack Posted April 13, 2015 Author Report Share Posted April 13, 2015 IT not only slams shut at 18lbs of boost it sounds like the motor blew up .... Quote Link to comment Share on other sites More sharing options...
204Denali Posted April 17, 2015 Report Share Posted April 17, 2015 I had the same issues with a LS3 TB, it has a weak servo motor. If you log your run you will see the TPS starting to flutter before it closes. I believe once it flutters and hits 96% TPS or below it kicks REP. My LS2 stays rock solid at 100%. FYI Ive seen them suck closed as low as 12 psi, remember PSI is only a number its about how much air you are moving. Quote Link to comment Share on other sites More sharing options...
gcosse05 Posted April 17, 2015 Report Share Posted April 17, 2015 IT not only slams shut at 18lbs of boost it sounds like the motor blew up .... Describe this sound? Loud buzzing/grindy kinda sound? Clear the REP and it stops? If so, as I was talking about my expierence with the TPIS TB on L8erbro's thread... My TPIS did that alot. Quote Link to comment Share on other sites More sharing options...
12secss e.mack Posted April 17, 2015 Author Report Share Posted April 17, 2015 the nick Williams 102mm does not make any noise it just slams shut at around 4000rpm and 15 to 18 lbs of boost going to try more tuning... Quote Link to comment Share on other sites More sharing options...
Link2603 Posted April 30, 2015 Report Share Posted April 30, 2015 I run an ls3 and havent had any problems with it slamming shut will at WOT. But every blue moon it with go into REP for unknown reasons usually at idle. Quote Link to comment Share on other sites More sharing options...
12secss e.mack Posted April 30, 2015 Author Report Share Posted April 30, 2015 how much boost do you run. Quote Link to comment Share on other sites More sharing options...
Link2603 Posted May 2, 2015 Report Share Posted May 2, 2015 how much boost do you run. 18-19 currently but I've ran up to 22 psi messing around. Quote Link to comment Share on other sites More sharing options...
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