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Stock Bottom End LQ4 F1a

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Old 04-21-2013, 02:43 PM
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Default Stock Bottom End LQ4 F1a

I have a Stock bottom end lq4 with afr205 heads with ls9 head gaskets, Brute speed blower cam, victor jr intake with a procharger f1a 10psi with th400 trans it makes 650hp 564rwtq. I would like to up the boost to 15psi but i want it to last not just make dyno numbers. How long do you think the motor will hold together. I have seen alot of turbo cars have good luck with stock bottom ends are there any blower cars out there making more than 700hp and how long has it lasted miles and track runs
Old 04-22-2013, 08:58 AM
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There no way to tell how long it will last . My stock ls6 in my corvette has had 14 psi on it for 2 years now and no issues at all. Just try it . It will hold if the tune is right. My fairmont has a 6.0 with 182,000 miles on it with 12psi and its got the stock head gaskets on it.
Old 04-22-2013, 10:22 PM
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My stock bottom end LS3 made 13# for a year and a half and 740rw with CNC'd LS3 heads and LS9 gaskets.
Old 05-18-2013, 09:13 PM
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I got the car to the track check out the video

Old 05-19-2013, 12:05 AM
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Awesome video man!

What is the race weight on those passes?
Old 05-19-2013, 08:27 AM
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3740 race weight
Old 05-19-2013, 04:22 PM
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Man that thing has some sponge lookin suspension. Plus side it's transferring the weight like a **** with weight setting you have your coil overa in front at. Soon as you grip after your burn out the nose is way in the air.
Old 05-19-2013, 04:31 PM
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Originally Posted by 95bowtie
Man that thing has some sponge lookin suspension. Plus side it's transferring the weight like a **** with weight setting you have your coil overa in front at. Soon as you grip after your burn out the nose is way in the air.
The car has full bmr front and rear suspension, qa1 12 way adjustable shocks with 275 front springs and stock rear springs. I played with shock setting all day to try to get the 60ft better best was a 1.50. If any one has any tips to get the 60ft better i would like the help thanks
Old 05-19-2013, 04:54 PM
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Looks great! Launches hard! Ill be getting the F1A installed soon too!
Old 05-19-2013, 04:55 PM
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What size pulley is on the blower right now? I'm about to get mine back together and this is a good gauge to see what mine may run with yours being the same weight, tranny, etc.
Old 05-19-2013, 05:13 PM
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Originally Posted by LS1RedZ
What size pulley is on the blower right now? I'm about to get mine back together and this is a good gauge to see what mine may run with yours being the same weight, tranny, etc.
5inch pulley 10psi
Old 05-19-2013, 06:05 PM
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Originally Posted by stmz28
5inch pulley 10psi
Oh ok cool. I've got the 4.13 on mine now, just gona get it running with that and then prolly go with a 3.90 this winter.



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