turbo 6.0 vs turbo 4.8

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11-13-2012, 03:08 PM

#11

LS1FREEK

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Quote:

Originally Posted by stock48

Yea S480 with race cover/ 1.25AR/92mm exhaust. It's a savage beast just lot's of lag up here at 7000'. Makes 24-25psi here where GT76 gave it up at 18. Bet it makes 26-27psi at sealevel ...:/

How the hell is your motor still together? Lol, is the motor still running strong?

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11-13-2012, 03:22 PM

#12

nonnieselman

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mid 10s at elevation i think he said..

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11-13-2012, 05:30 PM

#13

stock48

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Quote:

Originally Posted by LS1FREEK

How the hell is your motor still together? Lol, is the motor still running strong?

IDK but so far it's been liking it

Quote:

Originally Posted by nonnieselman

mid 10s at elevation i think he said..

Went 10.14/132mph in Colorado at 5000' elv. This was with GT76@20psi full weight one pass got thrown out, and blew turbo all in one...Could have prob nipped a 9.98 if I could have got a cpl runs to mess with it. This S480 Is making 24-25psi up here and burning same fuel as GT76 did at sealevel @20psi. Im confident It will go mid high 9's up here, and prob sub 9.50's at sealevel if engine holds

. Times in sig were at 800' elevation GT76 on 20psi so you can imagine what 25psi is like lol

Quote:

Originally Posted by Jake99

You are one crazy *** guy! Lol

Had to buy a new boost gauge, never thought Id need a 30psi gauge for a stock engine lol

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11-13-2012, 05:44 PM

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kbracing96

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^^^ looks photochopped to me...

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11-13-2012, 05:55 PM

#15

Jake99

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Man that's awsome, I can't wait to take this little toy motor up to 25psi with a real turbo, this 15psi stuff is getting boring!

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11-14-2012, 07:17 PM

#16

LS1FREEK

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Quote:

Originally Posted by stock48

IDK but so far it's been liking it

. Times in sig were at 800' elevation GT76 on 20psi so you can imagine what 25psi is like lol

Had to buy a new boost gauge, never thought Id need a 30psi gauge for a stock engine lol

Interesting, well our elevation is about 3000', with that BW s475/92, how many pounds do you think I could push with the stock head bolts? And how many psi if I bought head studs before the rods bend on my '03 motor? Mabe a more accurate question to ask would be on a 4000LB truck, how much mph could I run before I'd start bending rods? I want to push it, but not break it lol, I'll be installing forged rods/pistons next year sometime along with some L92 heads.

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11-15-2012, 03:15 AM

#17

stock48

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127mph and 16psi in my truck at 4850lbs will bend and break the early style rods. S475/92 will make prob make 18 -20 psi at 3000'. I wouldn't even waste the time swapping heads on that engine unless you put better rods in it. Tty head bolts usually give up after a few months of around 15-16psi. Some last longer some less. Lighter truck easy launch good tune u should be able to break 130 for a little while with the stock heads and light rods.

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