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Dyno numbers for a 402???

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Old Feb 21, 2005 | 07:27 PM
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Default Dyno numbers for a 402???

What do you guys think my setup should dyno at?

402ci motor, Ported/polished heads, Lunati hydraulic roller camshaft 558/560--216/224, JBA ceramic coated headers, SLP Y-pipe, Flowmaster mufflers, MTI intake lid, LS6 intake manifold, and Hypertech computer. Thanks
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Old Feb 24, 2005 | 08:00 PM
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anyone???
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Old Feb 24, 2005 | 08:05 PM
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can't give you a guess (not good at guessing on newer motors) but just wanted to say that that's a nice set up and hope you get what you want out of it.
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Old Feb 24, 2005 | 08:10 PM
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450rwhp?
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Old Feb 24, 2005 | 11:40 PM
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410 rwhp
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Old Feb 25, 2005 | 01:06 AM
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Whats the C/R? Also that cam is really small for a 402. Assuming 11.1 C/R and that cam u should be between 420-460rwhp.
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Old Feb 25, 2005 | 01:21 AM
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manual or auto? Manual I would guess 450, Auto I would guess 415
that is a TINY cam, why so small?
Hypertech will be useless, you will need a good tune to max out the potential of that motor
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Old Feb 25, 2005 | 08:07 PM
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That cam was in the car when I bought it. The car is a 6 speed. 10.5 to 1 compression. Thanks!
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Old Feb 26, 2005 | 10:07 AM
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Mikey made 553RWH threw 6sp w/his 1st 402 LS2...(Thats very impressive) I believe the cam was stout but not as stout as Mikey couldve run.That being said,I betcha with alittle more cam/tweeking 570RWH couldve been done..

So in a Auto that would amount to 550RWHP...I can imagine 550RWH in my car and it makes me all warm and fuzzy just thinking about it
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Old Feb 26, 2005 | 10:25 AM
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Originally Posted by JS
Mikey made 553RWH threw 6sp w/his 1st 402 LS2...(Thats very impressive) I believe the cam was stout but not as stout as Mikey couldve run.That being said,I betcha with alittle more cam/tweeking 570RWH couldve been done..

So in a Auto that would amount to 550RWHP...I can imagine 550RWH in my car and it makes me all warm and fuzzy just thinking about it
More like 510 in an a4.
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Old Feb 26, 2005 | 11:50 AM
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U didnt read the post bro
Mikey made 553RW threw a 6sp,now go with alittle more cam and that number will go up to 570RW in a 6sp which would be 540RW threw an A4,thats alittle bit more than 510

Last edited by JS; Feb 26, 2005 at 12:04 PM.
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Old Feb 26, 2005 | 01:08 PM
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A friend of mine lost 58hp going from a 5 speed to a turbo 400!
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Old Feb 26, 2005 | 01:13 PM
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A4 VS 6sp is about 5%
500 threw an A4 is 525 threw a 6sp. +/- 10hp
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Old Feb 26, 2005 | 01:15 PM
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Originally Posted by LASTLS1
A friend of mine lost 58hp going from a 5 speed to a turbo 400!

Turbo 400 will rob more HP than an 4LE60 auto that comes in the F-bodies.
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Old Feb 26, 2005 | 01:18 PM
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Originally Posted by JS
U didnt read the post bro
Mikey made 553RW threw a 6sp,now go with alittle more cam and that number will go up to 570RW in a 6sp which would be 540RW threw an A4,thats alittle bit more than 510

I read it.

Theres a bit more 3.5% loss going to an a4, it's more like 8%. And, I don't think it's as easy as just throwing in a little more cam when your making that number already. And what does your post have to do with the topic?
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Old Feb 26, 2005 | 02:20 PM
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8% no way,its more like 5% with an efficent verter like a Yank...
And in a big motor adding some more cam will get u 15 to 20 easy...

I say 550RW threw my A4 running one of Mikeys 402 LS2's is very possible....
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Old Feb 26, 2005 | 02:29 PM
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Lunati hydraulic roller camshaft 558/560--216/224
That a very tiny CAM man !!!!!!
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Old Feb 26, 2005 | 02:34 PM
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Originally Posted by JS
8% no way,its more like 5% with an efficent verter like a Yank...
And in a big motor adding some more cam will get u 15 to 20 easy...

I say 550RW threw my A4 running one of Mikeys 402 LS2's is very possible....

whatever
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Old Mar 4, 2005 | 07:13 AM
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Originally Posted by JS
8% no way,its more like 5% with an efficent verter like a Yank...
And in a big motor adding some more cam will get u 15 to 20 easy...

I say 550RW threw my A4 running one of Mikeys 402 LS2's is very possible....
I doubt it. Maybe with a solid roller, big cam and high compression. There are a lot of stout combos only making a little over 500rwhp in an A4. They would pretty much be in the 550 range with a M6. Never the less a 500rwhp A4 would be a beast. I am building a 408 Iron with 12.5:1 cr with a good size cam and I would be happy if I end up in the 500 range with my A4...
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