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LG Motorsports 402 + Vengeance ported FAST 92mm = 507 rwhp 500 rwtq FIRST PULL !!

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Old 01-07-2009 | 06:36 AM
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Congrats man! Glad to see it cracked 500/500
Old 01-07-2009 | 07:25 AM
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Looks good - Congrats Doug

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Old 01-07-2009 | 07:30 AM
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lookin good man great numbers it will feel like a million bucks to get itback I got mine christmas eve and have been enjoying it ever since. Took it on its first road trip only 2 1/2 hrs each waybut runs great on the highway and 70 to 120 happens before you know it. My car is the one in the va speed 402 thread. getting my o2's and my racetronixs kit next week and in for more tunning should be great.
Old 01-07-2009 | 08:23 AM
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Originally Posted by knappbunch
lookin good man great numbers it will feel like a million bucks to get itback I got mine christmas eve and have been enjoying it ever since. Took it on its first road trip only 2 1/2 hrs each waybut runs great on the highway and 70 to 120 happens before you know it. My car is the one in the va speed 402 thread. getting my o2's and my racetronixs kit next week and in for more tunning should be great.
You got a pretty stout car bro. Thanks for the compliments. Be sure to post your numbers after Shawn makes those changes. She's going to be even more powerful.
Old 01-07-2009 | 11:19 AM
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Old vs New combo.
Old 01-07-2009 | 11:41 AM
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Default Same heads, cam as last year just more ci's (346 vs 402)

346 --------- - 402
3000 200/360 - 3000 240/420 +40/+60
3500 240/380 - 3500 280/430 +40/+50
4000 300/395 - 4000 360/470 +60/+75
4500 375/440 - 4500 420/485 +45/+45
5000 420/440 - 5000 460/485 +40/+45
5252 440/440 - 5252 480/480 +40/+40
5500 455/430 - 5500 490/465 +35/+35
6000 480/420 - 6000 505/440 +25/+20
6500 485/390 - 6500 500/400 +15/+10

These numbers are a rough estimate, NOT exact ...................... It does illustrate where and roughly how much more power an ls2 based 402 stroker makes VS a 346. As you can see the stroker starts falling off up top losing almost 100 rwtq but who cares when you still have 400 rwtq @ 6500 !! Not sure if a slightly larger runner would help maintain torque up top without losing down low. All in all this is a very STRONG balanced combo that should be problem free. Thanks to Louis and all the guys at LG Motorsports. Can't wait to get her back and go for a drive.

Last edited by allngn_c5; 01-07-2009 at 12:08 PM.
Old 01-07-2009 | 12:02 PM
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Originally Posted by Bobby @ LGM
Old vs New combo.
That torque curve is sexy
Out of curiousity what causes the torque to dip between 3000 and 3500?
Old 01-07-2009 | 12:09 PM
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Originally Posted by allngn_c5
346 --------- 402
3000 200/360 - 3000 240/420 +40/+60
3500 240/380 - 3500 280/430 +40/+50
4000 300/395 - 4000 360/470 +60/+75
4500 375/440 - 4500 420/485 +45/+45
5000 420/440 - 5000 460/485 +40/+45
5252 440/440 - 5252 480/480 +40/+40
5500 455/430 - 5500 490/465 +35/+35
6000 480/420 - 6000 505/440 +25/+20
6500 485/390 - 6500 500/400 +15/+10

These numbers are a rough estimate, NOT exact ...................... It does illustrate where and roughly how much more power an ls2 based 402 stroker makes VS a 346. As you can see the stroker starts falling off up top losing almost 100 rwtq but who cares when you still have 400 rwtq @ 6500 !! Not sure if a slightly larger runner would help maintain torque up top without losing down low. All in all this is a very STRONG balanced combo that should be problem free. Thanks to Louis and all the guys at LG Motorsports. Can't wait to get her back and go for a drive.
Looks good. I know you will have to readjust your shift points now. You should love the low end torque when driving around. I can personally say, that I often do not even down shift from 6th because the torque makes it so much easier to pass people.
Old 01-07-2009 | 12:10 PM
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Originally Posted by Sigforty
Looks good. I know you will have to readjust your shift points now. You should love the low end torque when driving around. I can personally say, that I often do not even down shift from 6th because the torque makes it so much easier to pass people.
Good to hear Mark !!!
Old 01-07-2009 | 12:32 PM
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400rwtq at 2500 wow
Old 01-07-2009 | 12:54 PM
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Originally Posted by 98camaroLS1M6
400rwtq at 2500 wow
400+ rwtq at 2500 should make it quite challanging to drive aggressively. Those poor Nitto DR's have no idea what is about to happen to them. LOL !
Old 01-07-2009 | 01:05 PM
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Originally Posted by Bobby @ LGM
Old vs New combo.
kick *** doug. look at that fat *** torque curve. reminds me of a black womans ***(no racist). i love it. lol your almost at 400lbs tq during crusing speeds.

That thing should be wicked fun. definately alot more street friendly/usuable power curve.
Old 01-07-2009 | 01:08 PM
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Originally Posted by allngn_c5
400+ rwtq at 2500 should make it quite challanging to drive aggressively. Those poor Nitto DR's have no idea what is about to happen to them. LOL !

Lol, you are not lying. You will learn very quickly you can really only give the car up to about 1/2 throttle without spinning. My 383 would roast my nitto drag radials all the way into 4th if I tried anything over 1/2 throttle.
Old 01-07-2009 | 04:40 PM
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Awesome power man. I want a 402 so bad right now!!
Old 01-07-2009 | 08:34 PM
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Glad to see that everyone approves
Old 01-07-2009 | 10:17 PM
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I would say byebye nittos hello Toyo R888's or RA1's....
Old 01-08-2009 | 07:52 AM
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I think the new generation of MT radials would suit the car even better. Keep them in mind in oh...500 more street miles
Old 01-08-2009 | 08:20 AM
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Yeah I hear ya fellas on the tire issue. I just have to hope that the Michelin PS2's will be alright for awhile. I am out of cash and need to recoup some of my money. I have the goodyear runflats with nearly new amount of tread on the fronts and enough on the rears to use for awhile. The Michelins are in much better out back, and up front are showing some ware. I thing the extra traction urged me to test her handling. LOL. Then of course I have 3rd set of rims with Nitto DRs on them. So when the run flats are dead I will start looking at some tires that will fit some stock c5 rims. Can 295s fit the rear, and 265's fit the front rims of stock c5 rims (non zo6 rims) ?? The rims that have the Michelins are wider and can easily accomodate 265's up front and 295's out back. The 305 DRs almost rub out back so I won't be able to go any wider, even though I could use it. LOL.
Old 01-08-2009 | 09:03 AM
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You can take those PS2's and throw them straight in the trash! They ain't gonna hook and they are outright dangerous on your beast!!! I bought some for mine and have seen the *** end of my car in front of me a couple of times!!! I took em off and put the MT Streets (radials) back on. Now I'm thinking about some Toyo R888's...
Old 01-08-2009 | 09:30 AM
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Mini tub that biotch!!!!


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