G5X3 112 Cam Only Dyno Results: 434 rwhp and 405 ft-lbs - LS1TECH

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G5X3 112 Cam Only Dyno Results: 434 rwhp and 405 ft-lbs

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Old 10-23-2004, 03:43 PM   #1
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Default G5X3 112 Cam Only Dyno Results: 434 rwhp and 405 ft-lbs

I installed the G5X3-112 LSA cam into my stock headed 2002 Z06 last weekend. First of all I want to thank TwoktwoZ06, Slythetove, jmX, Quicksilver2002 and other friends for lending a hand and/or for letting me borrow their tools.

Impressions...

This car was a bitch to drive before the tune and it acted like it had a large cam (dying in traffic, surging at stoplights, etc.). After dyno tuning the car is VERY driveable (as some of you know, my dyno tune was on 7 cylinders!). It hasn't surged, bucked, or died on me since the tune and getting the #8 cylinder working again. I can hot start the car with the AC on and the RPMs will drop a little, but it jumps right back to 900 rpms and lopes hard (very nice sound). The cars shakes at idle (I like that) but at cruising speed you'd never know there's a cam in there.

Results...

The car pulls so much harder than it did before the cam and I'm thoroughly impressed right now. I dyno'd the car this morning at a local shop and it made 434 rwhp and 405 ft-lbs tq (SAE Corrected) THROUGH CATS and full exhaust. The heads have never been off the car. It looks like there's even more left by leaning it out some.

Click the image to open in full size.

My modifications include: G5X3-112 Cam (Patriot Springs, Hardened Pushrods, Double Roller Timing Set), LG Headers WITH Random Tech 3" Cats, GHL Magnum Exhaust, Halltech Stinger Intake, Shaner S2 Throttle Body, ASP Underdrive Pulley, 160 T-stat.

Stay tuned for videos
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Old 10-23-2004, 03:45 PM   #2
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nice numbers!!!!!!!!! especially through cats and exhaust. did you have to flycut the pistons to fit?
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Old 10-23-2004, 04:14 PM   #3
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I did 399/436 through an unlocked Th400 4.10/slicks.

G5X-3 on a 114
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Old 10-23-2004, 05:15 PM   #4
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very nice
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Old 10-23-2004, 07:27 PM   #5
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Can a moderator move this thread to the dyno results section??
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Old 10-23-2004, 07:35 PM   #6
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nice numbers

Who tuned it? and whats going on with your A/F ratio at lower rpms?
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Old 10-23-2004, 08:15 PM   #7
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It's called a lean spike. Pretty common actually. Justin you might want to go ahead and upgrade the fuel pump. It will keep the pressure up in the rails so that the lean spike will not occur.
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Old 10-23-2004, 08:23 PM   #8
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Quote:
Originally Posted by WS6snake-eater
It's called a lean spike. Pretty common actually. Justin you might want to go ahead and upgrade the fuel pump. It will keep the pressure up in the rails so that the lean spike will not occur.
Probably not a bad idea Matt. Thanks for the suggestion. Chris Robinson in Lewisville tuned the car and did an awesome job. I just need to get it back to him now that I'm firing on all 8 cylinders.
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Old 10-23-2004, 09:46 PM   #9
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Very Nice...I noticed you have nice TQ down low and you're making power at around 6400-6500. Don't have to spin to 6800. What kind of spring change interval are you looking at with that came? Also, do you drive your car daily/couple time a week? Would you be able to sit in traffic? I want a cam but am guaging my tradeoffs. Thanks
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Old 10-23-2004, 10:52 PM   #10
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Old 10-24-2004, 12:07 AM   #11
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Quote:
Originally Posted by BLASTER
Very Nice...I noticed you have nice TQ down low and you're making power at around 6400-6500. Don't have to spin to 6800. What kind of spring change interval are you looking at with that came? Also, do you drive your car daily/couple time a week? Would you be able to sit in traffic? I want a cam but am guaging my tradeoffs. Thanks
This car is my daily driver and only form of transportation. I can sit in traffic if I needed to and the car would run just fine. I'm a little shocked at how well it drives below 2k rpm. I'm planning on testing the springs at about 12-15k miles to see how they're doing.
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Old 10-24-2004, 12:24 AM   #12
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I'll move it to the dyno section for ya

Good results! BTW, at that very same dyno I saw an MTI heads/cam car (milder cam) do 424rwhp, so its generally a dyno that doesnt overstate numbers.
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Old 10-24-2004, 12:51 AM   #13
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Great numbers for cam only! Stock intake?
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Old 10-24-2004, 10:44 AM   #14
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I guess that one cylinder was dragging the rest of them down a little bit hunh?

I like the 350#s Tq @ 2500 Mucho daily driver fun.

Glad you like it. They are definately stout to say the least
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Old 10-24-2004, 11:57 AM   #15
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Awsome. I don't make that much with H/C. That's a great cam.

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Old 10-24-2004, 01:38 PM   #16
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Quote:
Originally Posted by ClarksZ06
Great numbers for cam only! Stock intake?
Yes, I have the stock LS6 intake manifold.
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Old 10-24-2004, 02:15 PM   #17
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Those are awesome numbers, especially through cats! I picked up over 20 RWHP switching from a CarSound-catted Y/Loudmouth to a 3" X-Pipe.

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Old 10-24-2004, 07:28 PM   #18
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Quote:
Originally Posted by 44mag
did you have to flycut the pistons to fit?
im curious about this too

great numbers
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Old 10-24-2004, 08:56 PM   #19
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Quote:
Originally Posted by torchedZ
This car is my daily driver and only form of transportation. I can sit in traffic if I needed to and the car would run just fine. I'm a little shocked at how well it drives below 2k rpm. I'm planning on testing the springs at about 12-15k miles to see how they're doing.
Great news. Wow, now I don't know what to do. Why am I considering a smaller cam if I can get that drivability with something like this, LOL. Did you have to fly cut the pistons? Got any videos?
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2000 Silverado 6.0L 4x4: Magnacharged & 3" 304 SS duals
Exhaust & Intake | 230HP & 275 FT-LBS
Magnacharger | 305HP & 350 FT-LBS @ 7#s| 335HP & 380 FT-LBS @ 10#s

2002 T/A M6 WS6: D1SC FMIC
10#s | 630HP & 550 FT-LBS
Cam only | 415HP & 400 FT-LBS | FM13 idle
Full bolt-on | 361 HP & 376 TQ | 12.323@112.65w/1.792
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Old 10-24-2004, 11:07 PM   #20
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No flycut on stock heads. Piston to Valve clearance is about 15 thou less than the X3 on a 114. On a 114, the clearance is very comfortable. On a 112, we reccommend that you check your clearances.

Last edited by Louis; 10-31-2004 at 07:52 PM..
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