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Th400 vs Glide with turbo?

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Old Mar 17, 2013 | 08:44 AM
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Default Th400 vs Glide with turbo?

Well I got my turbo, put the rear under the car, swapping gears from 3.73's to 3.50's, now it's time to decide wether to build a Th400 or a glide. The car should weigh no more then 3100lbs and I already have a good 4k Precision Industries converter. I was going Th400 but it will be harder to leave with and I'd like something that will consistently leave well at the track. Give some results from swapping.
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Old Mar 17, 2013 | 08:56 AM
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I love the glide for a turbo package. My car is heavy, heavy and I just recently switch from 3.90's and a TH400 to 3.42's and a glide. Car just ran a best of 6.07@113mph. I also switched from a 5.3 to a 6.0 though so hard to tell true improvement but with just the trans and gear swap I at least went from 6.31's to 6.26 with less boost.

With the weight of your car I would go glide. I also like the idea of one shift.
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Old Mar 17, 2013 | 08:58 AM
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Yeah your car is one that makes me want to glide, it's running hard for as heavy as it is. Did you ever put an inter cooler?
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Old Mar 17, 2013 | 09:02 AM
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Originally Posted by T/ALT1
Yeah your car is one that makes me want to glide, it's running hard for as heavy as it is. Did you ever put an inter cooler?
Not yet. I plan to but am not worried about it while the weather is so cool. My IAT's are still around 215 but again that is measured before the E85 hits it. I have my KR to low 1's and no burst knock so I am not worried about it. My timing is only at 17 now. Dudeman helped me with my timing table.
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Old Mar 17, 2013 | 09:16 AM
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1/4 mile car or 1/8th?
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Old Mar 17, 2013 | 09:32 AM
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Mostly 1/4mile and a little street duty.
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Old Mar 17, 2013 | 09:45 AM
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whats your power level gonna be? Reason i ask id i had a TH400 with my old ls6 nitrous setup. With a 28" tire 3.55 gears i was about out of gear around 135-140mph
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Old Mar 17, 2013 | 10:04 AM
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Well they both have the same high gear ratio so that doesn't really make a difference. I don't know what the power level will be but hoping for 750rwhp. I may have to either go with 3.27 gear or. 30" tires once I get the car dynoed and make a few passes at the track I'll go from there. I'm thinking the glide would be a good combo but I want to able to do 1.3 60's once it's dialed in.
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Old Mar 17, 2013 | 10:09 AM
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yea id do the 3.27s then. Ive never driven a glide so i cant help you but on all our bracket cars we run th400s. My turbo lsx im going built 4l80e so i cant help you too much just wanted to give you some input on the gear choice.
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Old Mar 17, 2013 | 10:15 AM
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I have a glide behind my ls twin set up in my mustang. It's nice. Stock case glide can hold good power, not as heavy as a 400. I've heard guys taking 1st gear out of the 400 because they have so much torque in first you don't need it in that light of a car. and also losses some weight.
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Old Mar 17, 2013 | 10:31 AM
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Thanks, boosted 95, how much power do you make, ets and gear ratio are you running?
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Old Mar 17, 2013 | 01:24 PM
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both my turbo cars run th400 ,both cars are heavy. If it were a tube chassis car i would run a powerglide .A power glide in a heavy car makes it a dog.
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Old Mar 17, 2013 | 02:25 PM
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I had originally planned to go th400 but I've noticed a few cars running quick with glides and turbo'd setups. My local track doesn't have the greatest prep so that's another reason I like the glide b/c it won't hit the tire so hard with the higher first gear ratio.
Topend how quick do your turbo cars run?
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Old Mar 19, 2013 | 03:52 PM
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Originally Posted by T/ALT1
Thanks, boosted 95, how much power do you make, ets and gear ratio are you running?
I'm running a 180 straight cut gear with a 3:55 gear in the rear. Haven't taken it to the track yet so i can't give you no et's. But on the street I feel like I'm in a stock car. lol My car is around 2900 with me in it.
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Old Mar 19, 2013 | 09:28 PM
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Well I'm going to go with the glide, since my car is light 3100lbs with me in it. I should be Able to leave with 10+psii and get the car moving out quick with less traction problems. If it doesn't leave hard enough I'll spray n20 for 1-2 seconds and that will make it scoot!
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Old Mar 19, 2013 | 09:36 PM
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Ill go with the glide setup as well since you want that good launch. A TH400 wouldnt be a bad idea either IMO, but a glide will suit you better for what you want.
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Old Mar 19, 2013 | 11:55 PM
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385CILSX with LF88
TH400 here with 3.70 gears
1.172 60ft on 275s. More gear is always better IMO (as long as you can hook it up)
car weighed 3480
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Old Mar 20, 2013 | 02:05 AM
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Im having the same delema right now as well.my cars mostly a street car tho but I think with the right stall with my small turbine the car shouldn't be a dog around town
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Old Mar 20, 2013 | 02:19 AM
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I agree with th400 making better ET's as long as you can get it hooked up. The local track I race at seldolmly hooks good only a few events per year. I would be a lot better off being able to get down the track easily then struggle with traction issues. Lastly the three quickest turbo 5.3's that all run 8's in the 1/4 all run glides.
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Old Mar 20, 2013 | 02:22 AM
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has any one ran both on a turbo set up?
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