WJM Posted February 3, 2004 Share Posted February 3, 2004 So....I was short on cash and decided to run 93 pump gas again. What a dissapointment. Past 4500 at WOT, no more power, just detonation. Top speed is about 94mph now...how depressing. Not that it matters on an autocross...*evil grin* The bottom end still pulls well, from 2200-4000....its odd, us import guys are supposed to have engines that only come alive AT or PAST 4 grand...gee, Ive got a V8 under the hood then. ROFL Ok...I need an intercooler. Time to experiment. To the market place! Quote Link to comment Share on other sites More sharing options...
WJM Posted February 3, 2004 Author Share Posted February 3, 2004 Its $3.99 a gallon. I dont know if its road taxed or not...i really should not be... i really think 7.7 stock...or 8.0:1 JE alloy pistons or something close would be the way to go on pump gas. You just gotta do the cams, fuel rail, Spyder intake and XT6 throttle body, VF34, and definalty a proper crossover pipe, and the turbo back exhaust....dont forget aobut the intake...some pretty polished metal tubing and an intercooler of some large size. I think i would be happy with my setup if I had those Delta cams installed, and a WRX top mount. I am working on that second part right now. Quote Link to comment Share on other sites More sharing options...
Skip Posted February 3, 2004 Share Posted February 3, 2004 I wish I knew what was wrong with my car. Dog gone!! I never run any more than 89 pump octane, I have the boost cranked up to the limit of my turbo's eff. (14 PSI manifold) I advanced my timing to 25 BTDC (idle switch closed and green connectors connected). I run it up to 6000 RPM almost daily, (pulls like a freight train easily to 7 if I let it). I'll be diked if I can get evan the slightest ping or pre-detonation of of it. Come on guys help me out. I do have an IC but maybe I should just dump this antiquated and out of date worthless fuel injection system and spend a couple hundred on something that will require tuning and new sensors and wiring and assembly and and and. Sheesh, what is the matter with me. BTW note: this sarcasm was not called for Quote Link to comment Share on other sites More sharing options...
WJM Posted February 3, 2004 Author Share Posted February 3, 2004 Hey um...Skip....gee wiz. Hey dont forget that I have the 9.5:1 pistons installed. I never experenced any sort of ping on the RX, running 16 psi (boost creep) and those cams....on pump 93. I think its sometihng to do with the hot wire system vs the older style system...maybe. That and the pistons. Quote Link to comment Share on other sites More sharing options...
Skip Posted February 4, 2004 Share Posted February 4, 2004 John thanks for the compl. as for other perf. mods I run a elementary H20 injection system and have a Bosch cold start injector triggered by an adjustable pressure switch (8 psi) The exhaust is my twin tube down pipe @ 2.5" with only a high flow cat as a silencer. My intake is a large K&N mounted in between the plastic inner fender and the inner fender (also has temp probe). The MAF to turbo pipe has been eliminated and a mandrel bent tube put in it's place. It would be great to find a dyno as I am an empirical kind of guy. I have temp probes in my throttle body as well. Speaking of which, I see allot of people going on and on about the fuel delivery or lack there of. Where is the justification for all this hoopla?? No one to my knowledge has put a proper wide band 02 meter on one of these and checked what the stock air fuel ratio is when blowing say 15 PSI. I will have an EGT soon but this still is not a substitute for a wide band. I'll take the money you guys spend on the MS system and buy a wide band. Then lend it to the guys that are brave enough to go with the MS. My bet is you'll be the first. If we are going to bark up a tree, it should be the correct conifer. Meet ya at the dyno Quote Link to comment Share on other sites More sharing options...
archemitis Posted February 4, 2004 Share Posted February 4, 2004 i bet an intercooler would make all the difference in the world. and a bigger turbo. Quote Link to comment Share on other sites More sharing options...
WJM Posted February 4, 2004 Author Share Posted February 4, 2004 he's got an IC. I am working on getting one...and a larger turbo. And...I never said anything about the stock system not being able to handle the 15 psi....maybe, MAYBE if we are pushing 29 psi, like Bozz speed's EVO 6 is...THEN we MIGHT have to do something... Still, i think SUBARUtex's fuel rail mod would be a great thing to add, for security and tuning ability, and more so for simplicity's sake. Something that you all need to keep in mind is that I am running MUCH higher static compression than everyone else, so i am more prone to detonation as compared to a stock turbo engine. Its static compression is 7.7:1, as compared to mine...9.5:1 I am also at a lower state of tune due to restictions in time...money, and the fact I have no shop or anything to work with. Its cold outside too. BUt it sounds like I am complaining now. Quote Link to comment Share on other sites More sharing options...
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