05 Goat Mod Help!
05-31-2011, 04:39 PM
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05 Goat Mod Help! Well, I've gone overboard on something and don't know what it is... When I bought the car I installed Spintech exhaust, Predator programmer, K/N CAI, M/T Drag Radials, and.... oh yes, BMR drag bags. Ran 8.4's all day in the 1/8... Installed a Vigilante 3600 Stall, Torquer3 cam, Patriot Gold Extremes, Hardened pushrods, SLP oil pump, Stainless Works 1 3/4 headers w/ Cats, and SNL tune. Car ran 8.2 and 8.1 with a 1.9 60' and trap speed at 87mph. Car dyno'd at 389/389. Stock gears, short block, and heads. My question is, does this seem right? Horsepower? Torque? Times? I'm an old carb guy and this fuel injection stuff is new to me, so be kind. 
Just seems like I spent a lot of money on the wrong combination or something to be so slow... Or yes, it's doing what it's suppose to. Appreciate any help!
Just seems like I spent a lot of money on the wrong combination or something to be so slow... Or yes, it's doing what it's suppose to. Appreciate any help! 
05-31-2011, 07:14 PM
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your 60 ft is horrible, are you running on 17s? with MT dr's you should be cutting 1.6/1.7s all day long(weather permitting). Your numbers sound right, and your making good power considering you have or im assuming you have stock 243 heads.
05-31-2011, 08:25 PM
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87 trap is where im at in the 1/8 mile but seems a little low. I have ls1 with 241s compared to your ls2 with the better 243s. Id say you have room for improvement.
Also i agree with what he said^ about the 60 times. Im 1.7s all day. Is your car full weight?
Also i agree with what he said^ about the 60 times. Im 1.7s all day. Is your car full weight?
05-31-2011, 08:47 PM
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nick.celis: No... I have 15x10 Street Lites with 275x50x15's... It spins really bad off the line. Even sat through a 5K rpm burnout for a few seconds and chirped then out of the whole. Leaving the line foot braking at about 2000 rpm. Yes, stock 243's.
05-31-2011, 08:49 PM
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impulsegoat: I've taken the support bracket out behind the fuel tank and on race days, the spare tire and jack. I also have an aluminum BMR skid plate. Other than that, suspension and body are completely stock.
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05-31-2011, 08:52 PM
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it was about 90 degrees this past weekend at the track. Forgive me, what is DA? SNL Performance said the same thing... the stall and the 15x10's on the rear are eating HP. Is 3600 too much?
05-31-2011, 10:08 PM
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you shouldnt have a problem hooking at all. I ran 10.9X at 125 with 275 50 15 MT drs, that was spraying out the hole, and i didnt spin that much. It might be the weather, but your car should definatley see 1.7 60s
05-31-2011, 10:53 PM
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DA = Delta Altitude.. go to dragtimes.com and you can type in the info date, time, place ect and it will calculate it for you. It effects HP and ET's quite a bit. The 90 degree weather pretty much explains the lower trap speeds
Do a longer burnout and get more aggressive. That car should not be spinning. You aren't even getting any better launches than a stock stall automatic car could get.
Do a longer burnout and get more aggressive. That car should not be spinning. You aren't even getting any better launches than a stock stall automatic car could get.
06-01-2011, 09:52 AM
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DA is how dense the air is that day. Cooler air and higher barometric pressure will put more oxygen in the cylinder. DA calculates that with the altitude the track is at to give you a comparable equivalent of what the effective altitude and hence density of the air is. Even with a poor 60' your MPH is low for your mods. My LS1 with stock LS1 heads, my intake, cam and SLP LTs ran 90 MPH in the 1/8th.
06-01-2011, 01:28 PM
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FormulaZR: Last year, no burnouts and always left off idle. This was the first pass the car has made with stall and cam so didn't know what to expect. No burnout off idle, it spun bad... really bad; couple of those passes. Next pass burnout out and stalled to about 1500 and spun bad. Last pass, more burnout and stalled to about 2000, little tire chirp and 8.1. So it sounds like finding the right combination on the launch: aggressive burnout and off idle launch or... aggressive burnout and higher rpm launch.
But from what I'm reading from everyone, 7.8-8.0 is the ballpark the car should be running.
But from what I'm reading from everyone, 7.8-8.0 is the ballpark the car should be running.
06-01-2011, 01:30 PM
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Oh, and the drag radials had 25lbs in them after the first pass. This may be an issue as well... My buddy had drag radials on his car at 18lbs to hook up. I'm probably high there. But I heard "" that drag radials didn't need low pressure because they aren't a true slick..??
06-01-2011, 02:12 PM
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Im running 40psi in mine and have no spin issues whatsoever after a good burnout. Im running 3400 stall and i stall up to around 2100-2200. If you only got the chance to make 3 passes then im assuming you just haven't had enough seat time with the new setup to get it off the line good. My advice is longer burnout and preload around 2k and smash it and see what it does.