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DYNO RESULTS:G5X2&5.3 STAGE II HEADS

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Old 07-27-2003, 09:49 PM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

URLOZN- It was dyno tuned at lg motorsports with ls1 edit. peak hp was at 6500.

Ragtop99 ,gomer,mikem-The heads were done locally by a freind of mine that does them at his house in his spare time.

Chris ARE 360-lg motorsports dyno.
Old 07-27-2003, 10:05 PM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

Will the G5 work with a stock short block or does it require valve reliefs?

If reliefs are needed, then how much?
Old 07-27-2003, 10:19 PM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

The heads were done locally by a freind of mine that does them at his house in his spare time.
Maybe he SHOULD give up his day-job.
joel(Bin k)
Old 07-27-2003, 10:50 PM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

What year is the car? is it a stock bottom end? cant wait to see the graph
Old 07-27-2003, 11:20 PM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

Hey guys, just wanted to answer a few questions. I did the install as well as the heads on this car. It is a stock bottom end <20K miles, 2002 model. I was really afraid the corsa was going to hold us up a bit on power, but it performed great. I do still wonder what the car would do with open headers or true duals with the short belt mod.

It was good to meet the guys at LG Motorsports. Great bunch of guys.
Old 07-28-2003, 12:10 AM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

I thought it was a 2002, the 02 fbody and 01 up vettes have ls6 short blocks in them and a better computer, they seem to be running 20 hp higher over earlier models. But 440 from an auto is still outstanding,
Redc4, great job setting up this car, i would open up the headers and see what see could do
Old 07-28-2003, 02:13 AM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

WOW
at first I didnt think thoes numbers were all that good untill I saw that they were off of a A4
Whats the guy that ported the heads number. He realy should quit his day job
Old 07-28-2003, 05:25 AM
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Default Re: DYNO RESULTS:G5X2&amp;5.3 STAGE II HEADS

Mill on heads,compression,fly cut pistons,valve size ? This is a tech board so that info seems like a no brainer unless it is a secret?
Old 07-28-2003, 07:28 AM
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Default Re: DYNO RESULTS:G5X2&amp;5.3 STAGE II HEADS

Congrat's with the #'s!
Old 07-28-2003, 08:15 AM
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Default Re: DYNO RESULTS:G5X2&amp;5.3 STAGE II HEADS

JFM, No secrets here, here are the answers to your questions:
heads milled .015
11.2 compression
Yes to the flycuts
2.02/1.60 Ferrea valves

Old 07-28-2003, 09:06 AM
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Default Re: DYNO RESULTS:G5X2&amp;5.3 STAGE II HEADS

Nice numbers!!!

That's a big cam compared to my "Small" TR 224...
Old 07-28-2003, 09:59 AM
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Default Re: DYNO RESULTS:G5X2&amp;5.3 STAGE II HEADS

Thanks for the info,appreciate it.
Old 07-28-2003, 08:25 PM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

Will the G5 work with a stock short block or does it require valve reliefs?

If reliefs are needed, then how much?
If your heads aren't milled you won't need reliefs. SS on your Six has that cam in his car without reliefs.

If you get those 1.8 rockers you keep talking about, you will absolutely need to flycut the pistons big time.
Old 07-28-2003, 10:15 PM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

I wouldn't be too sure about just sticking this cam in a S2 headed motor without checking. Even if the heads are not milled, there can be clearance problems. For example, the aftermarket valves have more margin (thicker) and hang lower in the chamber,depending on the valve job of course. You should ALWAYS check the valve drop to make sure you have enough clearance.

Give the guys at LG a call, they can clarify if needed.
Old 07-29-2003, 12:04 AM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

oh I can't put this in my engine now.....my heads are milled 0.020" and have 2.08/1.60 valves...a TR230/224 would be tight....

I just wanted to know for possible "future engine" use
Old 07-29-2003, 07:23 AM
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Default Re: DYNO RESULTS:G5X2&5.3 STAGE II HEADS

Very impressive..




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