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Cars for sale / Re: 93 rx7 5.3/t56 track car 25k obo
« on: October 06, 2013, 09:46:46 PM »
ttt
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I believe "tinman" has a 3800 5spd FC combo
I may be able to help some. I used to have a fairly gnarly Grand Prix GTP years ago. Those 3800s take a TON of abuse.
Ya, we've got one. I've been keeping it on the DL, since we're currently competing with it. Get a good look at these pics cos I might remove them soon.
The Camaro intake is the worst flowing of all the S2 intakes. throw it in the garbage. If you deside to keep it, unless you're gonna keep traction control or ABS, get rid of the massive TB too. Get a DBC.
We're using a S3 since it came with slightly bigger valves and stock forged rods. Also, the S3 intake flows a lot better. We ported the T-total fuck out of it to accomidate a 75mm TB.
build your own headers. There's a guy on ebay that sells exhaust flanges for teh 3800. then we used 3 U bends, cut them in half (one half for each side = 6 total J bends), and a 4"-3" reducer for the collector. when the pipes went into the collector, we heat and beat the reducer to contour the pipes. total cost in the headers... about $70.
Run to the junk yard and get an oil filter neck from an S1 Oldsmobile Silhouette, that puts the filter where the AC compressor is on the F body (if you're not running AC) so the filter doesn't hit the stock radiator. We're using an FC S5 radiator and ran the car HARD all weekend (in 40* temps), and the car never even got up to operating temps. Stayed around 160* all weekend. the front of the radiator is WELL shrowded.
Also using the stock FC oil cooler.
And for those interested in the track bit, it's got an adjustable wing (can be set up for various inputs to change its pitch angle). High speed angle here.
Low speed angle
Pic and vid from this weekend
Other than the porting and headers, motor is bone stock. We were very impressed with this motor. As you can see, it's VERY competitive on the straights. We need to dial in the suspension, but we all know what GM torque will do to an FC.