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Big cam 346 power?

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Old Feb 20, 2008 | 12:06 PM
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Default Big cam 346 power?

I am putting a huge cam in my 346. It is a 242/246 .621/.614 111LSA 109ICL.

The heads are 2.5 5.3 prc heads that are going to be milled .040. The SCR is going to be around 12.2:1 and the DCR will be 8.8:1. The bottom end will be completely freshened as well.

What type of power should this put down?
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Old Feb 20, 2008 | 12:13 PM
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If its right should make 470-500.
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Old Feb 20, 2008 | 12:18 PM
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Boy, I wasnt expecting all that. It will be going through an ls6 intake for now as well...
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Old Feb 20, 2008 | 12:23 PM
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prin, were you expecting more or less?
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Old Feb 20, 2008 | 12:28 PM
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less, like maybe 450. But, that is the way I think. Therefore, if it makes more than I was thinking, I will be very surprised! I like surprises!
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Old Feb 20, 2008 | 12:29 PM
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Sounds good, its always bad *** when you expect something THEN it exceeds your original expectations.
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Old Feb 20, 2008 | 12:30 PM
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445-455 than choked through that intake
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Old Feb 20, 2008 | 12:56 PM
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Sound very similar to ther engine going in my car. Keep us posted.
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Old Feb 20, 2008 | 01:07 PM
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thats alot of cam for the power check my sig
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Old Feb 20, 2008 | 01:08 PM
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Originally Posted by Prin
I am putting a huge cam in my 346. It is a 242/246 .621/.614 111LSA 109ICL.

The heads are 2.5 5.3 prc heads that are going to be milled .040. The SCR is going to be around 12.2:1 and the DCR will be 8.8:1. The bottom end will be completely freshened as well.

What type of power should this put down?
440......

MellowYellow has a RPM6.... 244/248 in a 346 with 10bolt and makes 440ish..... optimal setup with waterpump, pulley, and good exhaust thru a T56 might make 470ish.
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Old Feb 20, 2008 | 01:11 PM
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Originally Posted by WizeAss
440......

MellowYellow has a RPM6.... 244/248 in a 346 with 10bolt and makes 440ish..... optimal setup with waterpump, pulley, and good exhaust thru a T56 might make 470ish.
ahh I think it might make more than that. add a fast 90/90 setup and he could very well be in the 485 region.
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Old Feb 20, 2008 | 01:51 PM
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sorry to hijack do you daily drive your car i have a big cam too! i have lg motosports x5 cam with stock heads

Last edited by bobby1; Feb 20, 2008 at 02:06 PM.
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Old Feb 20, 2008 | 01:53 PM
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Woot for yall! It will have all mods done in my sig as well as a pulley. We shall see...
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Old Feb 20, 2008 | 02:42 PM
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try to get a fast 90/90 on there and if you have the money get it ported as well that should put you higher in the hp/tq range.....

depending on what you hit w/ the prc's i may be inclined to try them....rite now im infatuated w/ the tfs 215s and the afr 205s

when will you be done and on the dyno?

rite now id say around 460ish

-brandon
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Old Feb 20, 2008 | 02:49 PM
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Originally Posted by WizeAss
440......

MellowYellow has a RPM6.... 244/248 in a 346 with 10bolt and makes 440ish..... optimal setup with waterpump, pulley, and good exhaust thru a T56 might make 470ish.
but Mellow's on stock heads still (stock 02 LS1 heads)
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Old Feb 20, 2008 | 07:06 PM
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Originally Posted by WizeAss
440......

MellowYellow has a RPM6.... 244/248 in a 346 with 10bolt and makes 440ish..... optimal setup with waterpump, pulley, and good exhaust thru a T56 might make 470ish.
I am also going to be running this cam but with a set of 5.3 stage 3 heads
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Old Feb 20, 2008 | 09:15 PM
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im on a 245/250 cam when i dynoed 456 i still had the stock wp, now i have a remote ewp and a belt that runs from the crank to the alt

-brandon
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Old Feb 20, 2008 | 09:35 PM
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Originally Posted by bobby1
sorry to hijack do you daily drive your car i have a big cam too! i have lg motosports x5 cam with stock heads
I do daily drive the car. I had the mods in my sig.
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Old Feb 20, 2008 | 09:37 PM
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Originally Posted by Demonicbird00
try to get a fast 90/90 on there and if you have the money get it ported as well that should put you higher in the hp/tq range.....

depending on what you hit w/ the prc's i may be inclined to try them....rite now im infatuated w/ the tfs 215s and the afr 205s

when will you be done and on the dyno?

rite now id say around 460ish

-brandon
The car should be done this weekend hopefully! I had the prc's flowed and they did low 300's all around. I was very surprised!
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Old Feb 20, 2008 | 10:06 PM
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nice cant wait to see the results....get vid too

-brandon
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