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tbss intake and 243's installed

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Old 11-17-2008, 08:51 PM
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Sounds like a good setup, cant wait to hear how far you dip into the 12's!
Old 11-18-2008, 05:33 AM
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Originally Posted by MGMC
i used the dr.x harness (torquerushdotcom) with a stock tbss 90mm throttle body that came with the manifold. I also used the tbss fuel rails with my 8.1 injectors. i got rid of the evap crap, and plugged the passenger side vent line on the valve cover. thats pretty much all to it
Any mods needed to mate the 8.1 injectors with the TBSS rail?
Old 11-18-2008, 11:52 AM
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Originally Posted by tdrumm
any mods needed to mate the 8.1 injectors with the tbss rail?
nope. Just put them in.
Old 11-20-2008, 06:34 PM
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I went to the track last night and ran a best of 12.7@105. my best time so far, before the stock 243's and tbss manifold i ran a best of 13.1@103. there was a 15 degree difference in temp at the track that really helped
Old 11-20-2008, 06:43 PM
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congrats!!! does it "feel" faster
Old 11-20-2008, 06:50 PM
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Originally Posted by MGMC
I went to the track last night and ran a best of 12.7@105. my best time so far, before the stock 243's and tbss manifold i ran a best of 13.1@103. there was a 15 degree difference in temp at the track that really helped
thats a pretty good increase man. wonder how much of it was from the increased compression of the heads? do you know what your cr is now?
Old 11-20-2008, 07:07 PM
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Nice times! is this on street tires or did you get some slicks?
Old 11-20-2008, 07:23 PM
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thanks guys! the run was full weight, system, spare, 1/2 tank, with street tires. i know the temp decrease helped along with the higher cr. im sure the intake/tb helped some. my cr is around ~10.2 . the stock 243's bumped me up almost 1 point in compression
Old 11-20-2008, 08:33 PM
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Then your CR should be closer to 10.5 Did you adjust your tune at all when you did this swap?
Old 11-21-2008, 06:19 PM
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tune adjustment was the first thing done. what formula you using to get that cr? with a stock .53 gasket i was getting 10.2


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