HARROP TVS, What You Need To Know & FAQ
01-21-2010, 07:45 PM
#126
its really easy actually, not complex...its just like taking off the m62 but u also need to modify the map sensor a little bit
https://www.cobaltss.net/forums/show...00&postcount=5
https://www.cobaltss.net/forums/show...00&postcount=5
Last edited by RooTBeeR; 01-21-2010 at 08:18 PM.
01-22-2010, 12:14 AM
#128
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01-22-2010, 05:19 PM
#130
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cant really see how to modify the map in that pic. was hoping some one had a before and after pic of the map sensor and the mounting spot. well im not a complete retard so hopefully i can just figure it out in late feb when i put my tvs on.
02-04-2010, 07:18 PM
#139
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My car with a shorty header... 2.5 dp and gmpp touring, makes about 20.5psi on the 3.1".. made 304hp/276 tq
3" would be better.. but it's not going to KILL it..
3" would be better.. but it's not going to KILL it..
Last edited by 383_Stroker; 02-05-2010 at 12:46 PM.
02-05-2010, 12:45 PM
#141
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Valid Point 
Had i completed my thought, i would have finished the story which was that the same day, it ran exactly even up to 120-130 with a TC that dynoed 308hp .. with the cut-out closed... so, it wasn't hurting it much to be capped up..
Pretty sure i wasn't intoxicated when i posted the first one.. but i left out 3/4 of what i was gonna post
Had i completed my thought, i would have finished the story which was that the same day, it ran exactly even up to 120-130 with a TC that dynoed 308hp .. with the cut-out closed... so, it wasn't hurting it much to be capped up..
Pretty sure i wasn't intoxicated when i posted the first one.. but i left out 3/4 of what i was gonna post
02-05-2010, 12:58 PM
#142
I ran the 80mm on the 100% stock exhaust for a while. That setup pushed an uncomfortably high 21.3psi @ about 40F ambient. Don't know what my EGTs looked like at that point, but it felt fine. I'm sure it would be a bad idea to run it like that for too long though.
02-05-2010, 01:30 PM
#143
Valid Point
Had i completed my thought, i would have finished the story which was that the same day, it ran exactly even up to 120-130 with a TC that dynoed 308hp .. with the cut-out closed... so, it wasn't hurting it much to be capped up..
Pretty sure i wasn't intoxicated when i posted the first one.. but i left out 3/4 of what i was gonna post
Had i completed my thought, i would have finished the story which was that the same day, it ran exactly even up to 120-130 with a TC that dynoed 308hp .. with the cut-out closed... so, it wasn't hurting it much to be capped up..
Pretty sure i wasn't intoxicated when i posted the first one.. but i left out 3/4 of what i was gonna post
haha
02-14-2010, 10:04 PM
#147
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As far as a header goes for use with a TVS would the slp header be good ? The primaries are 1 5/8 . it will be to a 3in catless downpipe 2.5 catback. But i will also have a cut out. I have dual pass option b and also the progressive ais system. ls4 tb 3in zzp intake.
