Has anyone heard of the 100 % full throttle mod?
07-29-2005, 06:38 PM
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Has anyone heard of the 100 % full throttle mod? ls1 throttle is not at 100% but does it really make a difference if you do this mod? What % is the stock full throttle at? Thanks
07-29-2005, 06:57 PM
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Originally Posted by Formula1RR
ls1 throttle is not at 100% but does it really make a difference if you do this mod? What % is the stock full throttle at? Thanks
07-29-2005, 07:10 PM
#4
It's called the "bump stop" You grind the area where the throttle stops to allow it to travel further thus opening the throttle blade further. I just added a ported TB with this done and saw 1 hp and 1 lb. So probably a waste of time.
07-29-2005, 07:20 PM
#5
Hello and welcome to 1998!
The bump stop mod has been done since the early days, but it's not just for airflow gains. It also ensures the throttle position sensor reads a full 100% when at WOT. There can be significant gains. You just need some bolt ons to appreciate the airflow gains.
The bump stop mod has been done since the early days, but it's not just for airflow gains. It also ensures the throttle position sensor reads a full 100% when at WOT. There can be significant gains. You just need some bolt ons to appreciate the airflow gains.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
07-29-2005, 08:20 PM
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I have done r&d and seen an average gain of 1 1/2 rwhp between having it done and not on the same test vehicle mostly because of what Patrick said. Its a simple mod to do with the TB off the car to ensure not going too far and its free 
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07-30-2005, 12:46 PM
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i did it and now the car smokes the tires when i hit 6th gear....hah
i did actually do it when i first bought the car, mine was quite a ways off from being 100% and it did feel like it made a difference but we all know how accurate the butt dyno is
i did actually do it when i first bought the car, mine was quite a ways off from being 100% and it did feel like it made a difference but we all know how accurate the butt dyno is
my thoughts exactly! But some people are indeed new LS1 owners. 