92supreme Posted November 23, 2008 Report Posted November 23, 2008 I have a 92 supreme with the early version LQ1 3.4L dohc. I have come to find myself really disappointed with the rev limiter to be about 2800 to 3100 rpms. this isn't very good to show off the exhuast system. Does anybody know what has to be done to raise this? Maybe Computer chip from summit? Quote
Andrew Posted November 23, 2008 Report Posted November 23, 2008 yes the in park rev limiter is at 3k rpms. theres no need to raise this IMO. btw a chip from summit is a waste of money. Quote
1990lumina Posted November 23, 2008 Report Posted November 23, 2008 In neutral it should rev to fuel cut..at least my Lumina will. Quote
oldscsc Posted November 23, 2008 Report Posted November 23, 2008 Mine is set at ~ 4100. Like mentioned above, put it in neutral. It should rev to 6500. And what exhaust are you running that's worth showing off? Quote
5speedz34 Posted November 23, 2008 Report Posted November 23, 2008 Who are you "showing off" too? This engine is pretty raspy, and the best way is at WOT will accelerating. IIRC, the only time in neutral it should rev is >25 mph. Quote
92supreme Posted November 23, 2008 Author Report Posted November 23, 2008 10'' glass in place of cat. no mufflers 3'' slaint tips. still the same in N. cuts fuel at about 3100 ish. way to loud when driving. will go all the way to 6500 when over 25mph. sounds great at that high rpm. should I invest in the msd 6AL box? Quote
slick Posted November 23, 2008 Report Posted November 23, 2008 If you want a chip for your car, get the Ben chip. www.wot-tech.com, IIRC. Quote
5speedz34 Posted November 23, 2008 Report Posted November 23, 2008 Ya that's the right website. Quote
92supreme Posted November 23, 2008 Author Report Posted November 23, 2008 Being the pcm is seeing vehicle speed and engine rpm and cutting fuel a msd ignition box wouldn't change the foel cut off. wich is why I thought a chip from summit would. Quote
slick Posted November 23, 2008 Report Posted November 23, 2008 The chip from summit is pretty much garbage. The MSD box won't do anything for your vehicle. Quote
jake91 Posted November 24, 2008 Report Posted November 24, 2008 10'' glass in place of cat. no mufflers 3'' slaint tips. still the same in N. cuts fuel at about 3100 ish. way to loud when driving. will go all the way to 6500 when over 25mph. sounds great at that high rpm. should I invest in the msd 6AL box? damn Quote
BIGBULS Posted November 25, 2008 Report Posted November 25, 2008 Being the pcm is seeing vehicle speed and engine rpm and cutting fuel a msd ignition box wouldn't change the foel cut off. wich is why I thought a chip from summit would. I'll just repeat what others have said. Get a chip from WOT-Tech. Their chip is the ONLY one that will make ANY powergains (Hypertech, Jet, Superchips and Fastchip all dynoed at a LESS than 1whp gain on an independent dyno test that was done years ago by Aaron Lephart on his LQ1 auto), AND Ben Phelps (the guy that runs WOT-Tech) can program whatever Park/Neutral and in-gear rev limiter you want (up to 7150rpm where the fuel tables stop), AND can play with shiftpoints for you too (although it's BEST to not go too crazy on an older 60-E). Long story short...........go here for a chip: http://wot-tech.com/shop/ Quote
oldscsc Posted November 25, 2008 Report Posted November 25, 2008 Does 60degreev6 sell this guy's chips, because I know they can mess with rev limiter, shift points, and the like at your will. Quote
GOT2B GM Posted November 25, 2008 Report Posted November 25, 2008 I've got a 60 v6 chip in my Int'l. No rev limiter. Quote
White93z34 Posted November 25, 2008 Report Posted November 25, 2008 Does 60degreev6 sell this guy's chips, because I know they can mess with rev limiter, shift points, and the like at your will. Ben Phelps is the proprietor of both 60degreev6 and WOT-tec Quote
92supreme Posted January 17, 2009 Author Report Posted January 17, 2009 THANKS!! I got a chip from that website and it works great 6500 rev limiter 140mph speed cut. Quote
Crimson Fury Z Posted January 18, 2009 Report Posted January 18, 2009 noice. Ben's chips make the others just about as good as a dorrito on your floor board. i say that, and the cam timing mod, the p&p'd lower intake and the tapered tb kept my car close to stock auto times past 150k miles. Quote
carkhz316 Posted January 18, 2009 Report Posted January 18, 2009 Kinda off topic, but I've never beat on my vehicles, though I open 'em up once in awhile cuz it's healthy for them. But in my '92 Z, which is the only car I've had the 3.4 in, I just love to mash on that thing, occasionally. Not only does she pull like mad in that 4ish+up powerband, its the only time my current exhaust sounds any good on it; actually it sounds really good in the higher RPMs. Anyone else feel this way? Quote
AL Posted January 18, 2009 Report Posted January 18, 2009 Yep... My 3800 is boring while my DOHC is a ton of fun to drive... I know the feeling with the exhaust sound Quote
tdvs Posted January 19, 2009 Report Posted January 19, 2009 I really don't want to start getting into major engine/drivetrain mods again. Went through that phase back in my gear head days. Prefer spending my money on show rather go these days, but a little more performance, without going crazy, wouldn't be bad. A chip sounds like the hot lash What kind of money are we talking? Tom Quote
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