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chinese turbo track times

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Old 09-11-2012, 10:17 PM
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Originally Posted by LCR Camaro
How much boost has anyone ever pushed out of a single gt45?
Or has anyone ever maxed one out?
Denmah was pushing about 22psi on his 4.8
Old 09-11-2012, 10:21 PM
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There's also another guy on here with a rx7/forged 5.3/On3 76mm and goes 6.0's @ 118mph on 22lbs....
Old 09-12-2012, 07:14 AM
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Originally Posted by T76s10
I bet all those die hard name brand guys hate this thread. Like its a sin to buy from Ebay. If Jesus was on a budget, I'm sure he would have Ebay turbos to.
right!

Im going to the track on the 21st, going to run on street tires for fun, if I get mid 10's ill be happy.
Old 09-12-2012, 08:26 AM
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Originally Posted by a4ls2goat
Denmah was pushing about 22psi on his 4.8
correct, we have hit 24 in the truck and 23 in the fairmont

the truck was running 20lbs even for over 6500 miles, and we never took it easy with that thing. no blow off valve and lots of 3rd gear rolling burnouts.

the gt45 is the best bang for the buck period.
Old 09-12-2012, 08:32 AM
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Im running the on3 76mm and cant complain one bit. Ive been 11.4 @ 121 in my 5.3 truck and that was on 14psi with bad air. So 10s are inevitable. I just looked up the specs of the ebay gt45 and the turbine looks much better than the on3 unit. The on3 has a 65mm exducer and the gt45 has a 77mm exducer. But the on3 has a 76mm compressor inducer and the gt45 has a 68.7mm inducer. Do you guys think I would be better off with the gt45?
Old 09-12-2012, 08:46 AM
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^^ i was wondering the same thing. If one is better giving up 7mm
on the compressor side and gaining it on the turbine?
Old 09-12-2012, 01:30 PM
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I think you would probably benefit from going with the Ebay gt45. It won't have as much back pressure as the on3 unit due to the larger turbine wheel. I think your tu1 cam will like less back pressure also. Try it out and let us know. Its only $300! LOL
Old 09-16-2012, 08:07 AM
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10 psi, 2900lbs, 6spd, eBay gt45 on a 4.8/243/z06cam, 9.69@142

I'm a firm believer!!
Old 09-16-2012, 08:19 AM
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Originally Posted by oneoverwrx
10 psi, 2900lbs, 6spd, eBay gt45 on a 4.8/243/z06cam, 9.69@142

I'm a firm believer!!
Nice times. What vehicle is that in?
Old 09-16-2012, 08:21 AM
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Originally Posted by oneoverwrx
10 psi, 2900lbs, 6spd, eBay gt45 on a 4.8/243/z06cam, 9.69@142

I'm a firm believer!!
Congrats. I thought you were in the 2500-2600# range from your thread.

My bad just saw your update.

That car is haulin. Now lets see whats up at 20 #`s

Last edited by offaxis; 09-16-2012 at 08:28 AM.
Old 09-16-2012, 08:25 AM
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My bad. Just noticed the other thread. Great times for sure and congrats. Nice to see the 4.8 bringing it. I will throw this one in a few faces at work. LOL. Good stuff
Old 09-16-2012, 08:34 AM
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The car was 2500 last year with ls1 no turbo and 1/2 tank and no driver. Added approx 160 lbs with iron block and turbo stuff.:-(. 20psi and a little luck and I'll shift this junky *** turbo into the 8s. Imagine what a nice auto would do.....
Old 09-16-2012, 08:38 AM
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To be fair we can call it 13psi. Hits 10 then around 5500rpm it slowly creeps to 13.
Old 09-16-2012, 08:49 AM
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Old 09-16-2012, 09:40 AM
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Very sick!
Old 09-16-2012, 09:19 PM
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Which turbo will make more horsepower
The ebay gt45 or the On3 76mm .96 ?
Does the gt45 have a small cold side ?
Old 09-16-2012, 09:49 PM
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The gt45 is advertised to have a 69ish mm compressor wheel.

I have been going back and fourth about getting one for my LQ4. Cant decide on a Gt45 or a s475. My goal is to get my 3300lb car into the tens. It's 99% street car and I'm leaning towards the gt45 as it should be more than capable of getting the job done and should make it more fun on the street. Another thought is that I would be able to run a tighter converter with quicker spooling snail. What do you guys think? Of course the price of the gt45 is the most appealing.
Old 09-16-2012, 10:03 PM
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I just picked up the GT45 for $250 shipped.... Wtf is that? Lol
Old 09-16-2012, 10:53 PM
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Has anyone used a gt45 on a full weight fbody? Most results have been on light
weight cars.
Old 09-17-2012, 01:18 AM
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Originally Posted by 55superbeetle
The gt45 is advertised to have a 69ish mm compressor wheel.

I have been going back and fourth about getting one for my LQ4. Cant decide on a Gt45 or a s475. My goal is to get my 3300lb car into the tens. It's 99% street car and I'm leaning towards the gt45 as it should be more than capable of getting the job done and should make it more fun on the street. Another thought is that I would be able to run a tighter converter with quicker spooling snail. What do you guys think? Of course the price of the gt45 is the most appealing.
This is what I'm wondering also. Anybody run a gt45 on an LQ4? It would probably spool good. Just may run out after 5k rpm's.



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