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HARROP TVS, What You Need To Know & FAQ

Old 01-21-2010, 08:45 PM
  #126  
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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

Last edited by RooTBeeR; 01-21-2010 at 09:18 PM.
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Old 01-21-2010, 10:13 PM
  #127  
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Originally Posted by Billig ss/sc View Post
Actually right after I posted that, I read your sig and a "oh duh" moment happened. I'm debating whether or not I should just drop right into the 2.9" when I get the TVS. ...if I get it that is haha

And dude come back into the ***** threads, we miss ya
i jumped right to the 2.9 and 60s.. ull be fine without meth
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Old 01-22-2010, 01:14 AM
  #128  
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Originally Posted by ~Mike~ View Post
of course I kid....but how did you know you were goin that fast considering our speedo's only go to 160? lol
GPS? If not thats usually how most do it
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Old 01-22-2010, 04:15 PM
  #129  
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Originally Posted by 06_SIC_SS View Post
i jumped right to the 2.9 and 60s.. ull be fine without meth
Sweet. I can't wait.
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Old 01-22-2010, 06:19 PM
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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.
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Old 01-22-2010, 07:21 PM
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Originally Posted by jazzyjames1371 View Post
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.
pop ur hood, look at urs, and compare it to this one

i actually didnt have to cut as much away, but i did end up redrilling a whole for the screw its should be pretty east to see what was cut away
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Old 01-25-2010, 12:09 PM
  #132  
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^^All you're really modifying is the piece that holds it to the car right? Just makin a little cut in the plastic?
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Old 01-25-2010, 12:15 PM
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Sub'd
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Old 01-25-2010, 10:33 PM
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Originally Posted by Billig ss/sc View Post
^^All you're really modifying is the piece that holds it to the car right? Just makin a little cut in the plastic?
yes, just around the bolt hole
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Old 01-25-2010, 10:38 PM
  #135  
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I trimmed mine and just let the tvs hold it down.
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Old 01-25-2010, 11:37 PM
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yeah, i kept the bolt in mine cuz im puttin a supercharger spacer in there...eventually
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Old 01-27-2010, 09:13 PM
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thats so much better. here i was thinking i had to grind down the intake manifold to make the map fit differently. thanks rootbeer.
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Old 02-04-2010, 05:57 PM
  #138  
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Do you guys think the GMPP Sport (with Vibrant header/dp) exhaust flows enough or do I need a 3" exhaust? The TVS will have a 2.9 on it too
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Old 02-04-2010, 08:18 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..

Last edited by 383_Stroker; 02-05-2010 at 01:46 PM.
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Old 02-05-2010, 12:34 AM
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Originally Posted by 383_Stroker View Post
My car with a shorty header... 2.5 dp and gmpp touring, makes about 20.5psi on the 3.1".. made 304hp/272 tq

3" would be better.. but it's not going to KILL it..
I thought your cutout was open when you dyno'd that, wasnt it?
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Old 02-05-2010, 01:45 PM
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Originally Posted by InfraRedline View Post
I thought your cutout was open when you dyno'd that, wasnt it?
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
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Old 02-05-2010, 01:58 PM
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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.
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Old 02-05-2010, 02:30 PM
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Originally Posted by 383_Stroker View Post
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
Lol you crazy bastartd spreadin misinformation and what not
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Old 02-05-2010, 07:47 PM
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lol.. almost never on purpose...
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Old 02-06-2010, 01:12 AM
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...also add to the first post

is it harder to change the oil filter with the tvs than the m62?

yes, its retarded hard...need small hands and drip oil on things haha
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Old 02-06-2010, 05:16 PM
  #146  
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it's actually quite easy if you unbolt the ambient air temp sensor, and bolt it back in 180* turned around.
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Old 02-14-2010, 11:04 PM
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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.
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Old 02-15-2010, 05:54 PM
  #148  
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That'll do pig, that'll do..
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Old 02-15-2010, 06:00 PM
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Originally Posted by WickedSS2005 View Post
That'll do pig, that'll do..
Pig ??????? Whats that all about ?
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Old 02-15-2010, 06:30 PM
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Ever see the movie Babe?
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