HxC_zombie6 Posted May 24, 2008 Report Share Posted May 24, 2008 Ok so sunday I went to the drag strip for the first time it waz a blast wow .any ways I waz running about a 15.5 to a 15.33 is that a good 1/4 time for a stock 88 sq auto ?,? Car waz only boosting 7psi idk y but it waz I think I'd would have don't better if I waz boosting good maybe some new plugs and wires would have helped but idk tell me what u thing about my times Quote Link to comment Share on other sites More sharing options...
Technology Posted May 24, 2008 Report Share Posted May 24, 2008 Maybe you had some bad fuel in there. You know it won't go to 10psi untill 4k rpm if its stock, and not at all if it detects knock. if you can find some 100 octane unleaded fuel, that will eliminate fuel-related knock. Good times otherwise. What was your 60ft time, and what do you have the rear tires inflated to? I found 20 psi to be best for quelling wheel hop. Quote Link to comment Share on other sites More sharing options...
JustPaus_88TSi Posted May 24, 2008 Report Share Posted May 24, 2008 Auto SQ's don't have the 7.5psi til 4Krpms thing. Could be detecting knock, or simply has the wastegate actuator hooked up wrong. Quote Link to comment Share on other sites More sharing options...
StarquestRescue Posted May 24, 2008 Report Share Posted May 24, 2008 That's better than my 88 auto car ran the first time to the track. Quote Link to comment Share on other sites More sharing options...
emagdnim Posted May 24, 2008 Report Share Posted May 24, 2008 Sounds like a great time in a stock Auto. Whats the stock RPM stall at? Quote Link to comment Share on other sites More sharing options...
JustPaus_88TSi Posted May 25, 2008 Report Share Posted May 25, 2008 If I remember right, it's 2900-3100 rpms from what the FSM says.. Quote Link to comment Share on other sites More sharing options...
emagdnim Posted May 25, 2008 Report Share Posted May 25, 2008 I wonder what Nitrous would do. 16g, 100 shot, leave on 20-25lbs of boost... hmmmm Quote Link to comment Share on other sites More sharing options...
JustPaus_88TSi Posted May 25, 2008 Report Share Posted May 25, 2008 Stock tranny? Prolly blow up pretty quick.. Most boost I was ever able to hold with a stock trans with just a brakestand was like 9-10psi if I remember right.. Now, get a full reverse pattern manual VB with a transbrake and some better clutches, maybe with some 3.90's or 4.22's and I think it'll shock a lot of people. Quote Link to comment Share on other sites More sharing options...
emagdnim Posted May 25, 2008 Report Share Posted May 25, 2008 Oh, I'm sure that would leave very nicely, like 1.5 60ft nice. DSM's are moving towards manual valve bodies and transbrakes in the stock auto as well, I would love to see a member do that here... That would move the auto tranny cars forward for sure. Quote Link to comment Share on other sites More sharing options...
HxC_zombie6 Posted May 27, 2008 Author Report Share Posted May 27, 2008 Auto SQ's don't have the 7.5psi til 4Krpms thing. Could be detecting knock, or simply has the wastegate actuator hooked up wrong. ? what the hell is knock ???? Quote Link to comment Share on other sites More sharing options...
spoolinturbo Posted May 29, 2008 Report Share Posted May 29, 2008 (edited) Detonation (also called "spark knock") is an erratic form of combustion that can cause head gasket failure as well as other engine damage. Detonation occurs when excessive heat and pressure in the combustion chamber cause the air/fuel mixture to autoignite. This produces multiple flame fronts within the combustion chamber instead of a single flame kernel. When these multiple flames collide, they do so with explosive force that produces a sudden rise in cylinder pressure accompanied by a sharp metallic pinging or knocking noise. The hammer-like shock waves created by detonation subject the head gasket, piston, rings, spark plug and rod bearings to severe overloading. Carbon deposits form a heat barrier and can be a contributing factor to preignition. Other causes include: An overheated spark plug (too hot a heat range for the application). Glowing carbon deposits on a hot exhaust valve (which may mean the valve is running too hot because of poor seating, a weak valve spring or insufficient valve lash). A sharp edge in the combustion chamber or on top of a piston (rounding sharp edges with a grinder can eliminate this cause). Sharp edges on valves that were reground improperly (not enough margin left on the edges). A lean fuel mixture. Low coolant level, slipping fan clutch, inoperative electric cooling fan or other cooling system problem that causes the engine to run hotter than normal. Edited May 29, 2008 by spoolinturbo Quote Link to comment Share on other sites More sharing options...
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