Thread: @115 Engine Cuts out

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  1. #1 @115 Engine Cuts out 
    GTX Level Member stlmo_gtp's Avatar
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    So i few weekends back i was on my way back from Chicago and hit a nice straight away and no one was around so i figured lets have a little fun so it gets up to about 115 mph and then the engine just cuts out and dopes it down. would this be due to a stock pcm ? has anyone else had this happen ?
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  2. #2 Re: @115 Engine Cuts out 
    GXP Level Member Zef_66's Avatar
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    Quote Originally Posted by stlmo_gtp View Post
    So i few weekends back i was on my way back from Chicago and hit a nice straight away and no one was around so i figured lets have a little fun so it gets up to about 115 mph and then the engine just cuts out and dopes it down. would this be due to a stock pcm ? has anyone else had this happen ?
    Yup, stock PCM cuts the injectors when it reaches the speed limiter. Can be very dangerous to your engine. No fuel can = Knock. Knock can grenade your pistons. So yeah, I wouldn't purposely hit the speed limiter if I were you until you get a different PCM or a tune.
    2001 GSE
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  3. #3 Re: @115 Engine Cuts out 
    Bastard Reptile's Avatar
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    ON a GTP the fuel cutoff is 126....however, somewhere in the tables there is a High MPH threshold for spark cut off. and I think it's 112-115mph.
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  4. #4 Re: @115 Engine Cuts out 
    GXP Level Member Zef_66's Avatar
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    Quote Originally Posted by Reptile View Post
    ON a GTP the fuel cutoff is 126....however, somewhere in the tables there is a High MPH threshold for spark cut off. and I think it's 112-115mph.
    Yeah, so somewhere in there. I didn't memorize the stock PCM, I just changed it. 255mph here I come!!! haha...
    2001 GSE
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  5. #5 Re: @115 Engine Cuts out 
    Bastard Reptile's Avatar
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    haha.....

    IIRC I think it's in the spark tables under high mph threshold or something. I don't have the tuner with me....and I'm too lazy to go get it. LOL
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  6. #6 Re: @115 Engine Cuts out 
    GTX Level Member Freebeer187's Avatar
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    GTP will hit 120 mph? Stock?

    How To: E-Brake Pwn
    2001 GTP. D/S Rotors * Custom Intake * DHP PCM *
    Looking For - 3" in DP with Cat. PM me if selling
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  7. #7 Re: @115 Engine Cuts out 
    GT Level Member 04CompG's Avatar
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    CompG 142mph Stock. Woot!
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  8. #8 Re: @115 Engine Cuts out 
    Donating Users BADAZGTP's Avatar
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    Mines 135 before the stock pcm suts it down.
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  9. #9 Re: @115 Engine Cuts out 
    TDCRacing
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    Quote Originally Posted by Freebeer187 View Post
    GTP will hit 120 mph? Stock?
    Sure....not in 14 seconds...but sure A lot of cars can go that fast and faster stock.
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  10. #10 Re: @115 Engine Cuts out 
    Donating Users blowfishRus6's Avatar
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    yea ive had mine just about to 140 stock
    white 04 comg G gtp. wizair, pacesetters, slp 1.8 rr
    its slow.
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  11. #11 Re: @115 Engine Cuts out 
    GrandPrix Junkie Sabrewings's Avatar
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    Haven't tested mine since I removed the limiter, but other L36s similar to me can hit high 130s pretty easy. Not sure if any of them have ever straight up maxed it out. My speedo goes to 140 so I want to lay it over hard one day. Just once.
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  12. #12 Re: @115 Engine Cuts out 
    GTX Level Member stlmo_gtp's Avatar
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    thanks for all the answer guys i haven't been on for a few days and it nice to see this thread still going
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  13. #13 Re: @115 Engine Cuts out 
    I live here. UR LOSN's Avatar
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    had mine up to 154.... dont speed through Knightstown Indiana.... just an fyi....
    2001 GTP- PT76 turbo, Intense Drag cars old engine, Stage 4 Intense turbo cam,FMIC,150 wet,Double roller timing chain,Diamond forged coated pistons 8:0:1,Diamond piston rings,Cryoed L32 connecting rods,Cryoed crank,Clevite77 main bearings,Clevite77 cam bearings,Clevite77 L32 rod bearings,ARP Everything, Intense/meizere true billet Flexplate,Intense Wilson UIM/LIM,Intense oil pressure kit,Cometic,OE-R lifters,Cryoed L67 block,ATI turbo dampner,80# inject,Weldon 2035 fp,Aero Fuel Rails,AL cradle
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  14. #14 Re: @115 Engine Cuts out 
    I live here. GTPJOE90's Avatar
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    lol
    hogan 3inch DP u bend delete ,180*tstat, autolite 104s, LED interior, 4" FWI, 2000watt system, bullitt rims, zzp pistons, pems, alt rewire, thrush muffs, 3.4 zzp mps, transgo shift kit, triple edge performance trans. autometer triple pod :SOON: urlosn HPT PCM tune, HEADERS, 1.9's
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