LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

400rwhp LE1 Heads with CC306 Dyno numbers

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Old Aug 17, 2005 | 12:31 PM
  #1  
roadtrip120's Avatar
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400rwhp LE1 Heads with CC306 Dyno numbers

Just off the dyno
97 T-A m6
LE1Heads, cc306 ,4.10 gears, LS1 lid conversion, 58bb tb, 30.lb injectors ,full bolt-on's

400.4 rwhp
365 rwtq

LE1 heads with stock valves, ported by the master himself, and tuned by Joeseph Y. aka(Kryckter)

Dyno run 1. (base tune for a heads cam car)
A/F was 14.1 up top
393.8 rwhp

Dyno run 2
A/F was 13.1 , Down on power, and torque accross the board
384rwhp

Dyno run 3
A/F was 13.5, adjusted the timing according to altitude and setup
400.4rwhp
365rwtq


Crongrats to Zach the owner, thanks to Lloyd for ported the heads, mad props to Kryckter for the tune, most of all B-rad at Alley Speed for the install.

Last edited by roadtrip120; Aug 17, 2005 at 03:14 PM.
Old Aug 17, 2005 | 12:42 PM
  #2  
Bow94z's Avatar
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

very nice, stock bottom end?
Old Aug 17, 2005 | 12:44 PM
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

Damn! I need to get in touch with this guy that did your tuning. I've got a set of home ported heads that I assume are 20cfm over stock. I've also got a gm847 cam. How much cfm over stock are LE1 heads?
Old Aug 17, 2005 | 01:01 PM
  #4  
roadtrip120's Avatar
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

Kryckter did the tuning, on Zach's T/A and on his own freak 417rwhp LE2 setup. He has the tricks for these setups down.

Yes it is a stock bottom end 140,000 miles and going

One of Lloyd's LE2 flow sheets(not Zach's heads)
2 136/102
.3 192/137
.4 238/164
.5 265/183
.6 271/188
Old Aug 17, 2005 | 01:03 PM
  #5  
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

B-rad do you guys have a dyno chart on this one? I'd like to see the TQ curve.

Bret
Old Aug 17, 2005 | 01:06 PM
  #6  
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

Ya , Zach and Joe are on there way back from Lubbock right now, i'll have Joe or myself email it to you tonight. Joe said it was over 300rwtq from 3,000-5,500rpm's.


EDIT
I just looked at the tq curve on the graph, and its above 350rwtq from 3000-5700rpm's

Last edited by roadtrip120; Aug 18, 2005 at 08:53 AM.
Old Aug 17, 2005 | 01:13 PM
  #7  
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

Cool, just want to look at it compared to Joe's.

Bret
Old Aug 17, 2005 | 01:46 PM
  #8  
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

Very nice numbers...i cant wait to get my 306 cammed motor up and running.
Old Aug 17, 2005 | 02:11 PM
  #9  
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

Amazing numbers!
Old Aug 17, 2005 | 03:01 PM
  #10  
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

Where is the TQ? Seems to be WAY low in that area.
Old Aug 17, 2005 | 03:09 PM
  #11  
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

torque kinda sucks.... get it into the high 300's and keep that rwhp at 400+ and you'll be smokin'
Old Aug 17, 2005 | 03:17 PM
  #12  
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

Sorry typeO 365rwtq not 356
Old Aug 17, 2005 | 03:21 PM
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

oh, 365rwtq? then that's pretty damn good... still needs to go north a bit
Old Aug 17, 2005 | 03:31 PM
  #14  
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

Kryckter put down 400rwhp 361rwtq on stock bottom end, then on his forged 355 he put down the 417rwhp and 381rwtq. I'm not sure if the little small block can put out any more torque on a hyd roller, unstroked, stock bottom end. But it would be nice if it did.
Old Aug 17, 2005 | 03:51 PM
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Re: 400rwhp LE1 Heads with CC306 Dyno numbers

Thats freaking sweet. Grrr, I need to save up more money.



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