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07-05-2003, 08:17 PM
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Registered Member
Join Date: Jan 2003
Location: Palm Bay, FL
Posts: 432
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E303 vacuum?
I just got my new motor back...car runs awesome...BUT the brakes are horrible. As far as I can see, there's no vacuum leak. I dont have a gauge so I havent checked my vacuum yet, but I'm running the E303 cam. The brakes are horrible...I mean they were pretty bad before the motor swap but now they're nearly unbearable. If I'm not easy on the braking and accelerating, my brake pedal goes rock solid and the car will barely stop. I blew through a stop sign by about 5 feet because I lost all pedal.
Is this kind of vacuum loss normal for an E cam?? Sounds pretty odd to me since the cam is so mild. BUT, by the way, it lopes like CRAZY for some reason....I could barely believe it was an E when I cranked it up. Only reason I do think it's an E cam is my gas mileage. 
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'91 Mustang GT 5.0 AOD Daily Driver Current stats: NEW 302 short block, E-303 cam (@.050, 220/220, .498/.498, 110 degrees), 1.6 roller rockers, Performer RPM heads (aluminum, 1.9/1.6, 60cc chambers), Cobra intake, Granatelli 75mm MAF, Billet AFPR, Equal-Length Shorty Headers, Off-Road X Pipe, Flowmasters, 4.10 POSI 13.73 at 103.8, ~2.2 60' |
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