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  1. gtstangrunner

    4.10's?

    I have 4.10's on my 03 and do not like them at all. I don't hook up and it does wind out waaaayyyy to fast for the blower. My car felt faster without the 4.10's. I think I'm going to put my 3.55's back in pretty soon. I love going 130mph in 4th as opposed to 120. If you do any gearing 3.73...
  2. gtstangrunner

    Broke my halfshafts

    Well I finally broke my half shafts. After two really good sixty foots (1.65, and 1.77) the driver side half shaft snapped in two. It was the loudest boom I've ever heard come from a car. Do you think I shoulds solid axle, also how much to do the swap?
  3. gtstangrunner

    03 cobra not making BOOST

    Well I got her dynotuned via an SCT chip and she made 460hp and 489tq :D to the wheels. The blower is being overspun after 6000 rpm due to the 2.8 pulley. The dynograph starts looking like a gradual sinusoidal wave after 6000 rpm. The car feels alot better now with the tune and it picked up...
  4. gtstangrunner

    03 cobra not making BOOST

    Oopps I meant can the throttle body cause a rich condition, with the MAF overcompensating the fuel for the extra air it sees. The cruise still works just fine. I hope my baby is not too sick, but shes running some near stock numbers and is far from stock.
  5. gtstangrunner

    03 cobra not making BOOST

    You know what Uncle meat every since I put that throttle body on the car has not run close to a 12.2 ET. However my throttle response did get alot better. Its sucking alot of air I think because you can hear this hissing or sucking noise at the filter when you rap the throttle. Thinking about...
  6. gtstangrunner

    03 cobra not making BOOST

    Yeah I'm going to put it on the dyno Thursday hopefully. The guy at the track who owns the dyno shop said it should trap 120ish. I agree because I trapped 115 and had a lower ET with a passenger and 2 10 inch woofers in the trunk with only a 12 psi puley, CAI and catback. I'll keep you all...
  7. gtstangrunner

    03 cobra not making BOOST

    Well went to the track tonight and something is not right. Best was 12.7 at 114mph with a 1.85 60 foot:notnice: . I've run .5 seconds better before the twin 65mm throttle body, 2.8 pulley was a 3.0 pulley, 4.10 gears and ET streets. I should be killing my previous best of 12.2 at 113mph with...
  8. gtstangrunner

    03 cobra not making BOOST

    The gauge when the car is off sits at like 1, but I noticed I'm only at 14 at idle on the vacuum side. I thought it should be like 21 or 22 in.Hg at idle. How does everyone keep their Eatons from dumping boost at peak. Plenty of you all are running 14-23 psi, what do I need to do to run...
  9. gtstangrunner

    03 cobra not making BOOST

    Its an aftermarket boost gauge and its tuned via the diablosport predator pulley tune. My AF gauge stays on Rich at WOT could that be an issue? My stock boost gauge gets pegged like right away when I nail it, the aftermarket one gets to 10 pretty fast also but stays at around 11 psi the whole...
  10. gtstangrunner

    03 cobra not making BOOST

    I put the 74.0" (4080740) belt on with the 2.8 and a 90mm aux idler and theres no marks or rubber anywhere to suggest belt slip. I tried that RPMOUTLET zero dollar boost bypass but not sure if it did anything for me. THe car feels strong but its definantly not going over 11 psi.
  11. gtstangrunner

    03 cobra not making BOOST

    Hey I have the 2.8 upper and my aftermarket boost gauge is only reading 11psi:shrug: . Does everyone on here thats making the proper boost have this boost by pass mod. Is my car sensing excessive boost and dumping off three psi on me. Also how can i fix this, if im loosing 3psi due to this...
  12. gtstangrunner

    39 degrees of timing hmmmm

    21 views and not 1 reply:nice: :notnice: Oh well
  13. gtstangrunner

    39 degrees of timing hmmmm

    Alright here goes I hooked the Diablo up to the terminator and did a little data logging to find out that the predator is saying I have 39 degrees of timing between 2k and 4k:shrug: . Thats scary. Do you all think my predator is screwed up or is my car screwed up????? Thats waaaayyyyy...
  14. gtstangrunner

    Tell me about your Terminator--Pros/Cons of ownership

    Yeah get one for sure. I have had my 03 cobra for almost two years and although not a daily driver I truly enjoy the car when I do drive it. Mine is pretty well modded out and it seems to be holding up pretty good. I had a Procharged 00 GT before the cobra and still have to say the cobra is...
  15. gtstangrunner

    Confused on 1/4 mile speed loss

    Its not so much that I was looking for a performance increase my concern is that when you hit a ET thats .1 off and loose 6mph in trap speed tells me I might have lost some horsepower but my reaction time and 60 foot still cut a close ET. Like I said I've run a 12.5 at 115 mph so a 12.6 at 109...
  16. gtstangrunner

    Confused on 1/4 mile speed loss

    Hey I installed a BBK twin 65mm throttle body on my 03 Cobra and the throttle response was alot better and the sotp feels like I made power but I went to the tack and ran a 12.6 at 109mph:shrug: :nonono: . Last time out before the throttle I went 12.5 at 115mph. How could I loose 6mph in the...
  17. gtstangrunner

    New 1/4 mile times

    All right the track opened up last weekend for the first test and tune of the new season and heres how I did. I really need help launching my 03 snake, but here it is. First run solo 12.5 @115 with a 2.01 60' bogging a little bit. Second run with the little lady in the car I ran 12.2@113 with...
  18. gtstangrunner

    Idler kit ????

    I'm trying to use the stock belt which I thought should be big enough. Maybe I just need to get a breaker bar and pry the hell out of the tensioner. The 3 bolt holes won't line up due to the extra wrap on the belt with the idler. I'll try to pry the sucker up but I was afraid of putting too...
  19. gtstangrunner

    Idler kit ????

    Hey Meat its the Aux Idler kit that sits right by the blower pulley. The belts on the charts are smaller than the factory 75.1" belt. I think I need a bigger belt. My blower pulley is a 3.00 and the chart says I need a 74.5" belt, I'm confused, maybe that chart is not for the aux idler kits.
  20. gtstangrunner

    Idler kit ????

    Hey guys I got a 90mm motoblue idler kit and the D@#$ belt wont go back on. Well really the belt tensioner won't line back up with the bolt holes. I'm running a 12psi pulley on the blower and the stock lower pulley. Do I need a new belt and if so do you all know what size. Maybe I'm just...
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