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View Poll Results: H or I beams for my LR2.4
H Beam
6
21.43%
I beam
22
78.57%
Voters: 28. You may not vote on this poll

LR2.4 H or I beams???

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Old Mar 11, 2010 | 12:50 PM
  #1  
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From: VaBeach, VA
LR2.4 H or I beams???

As a lot of you know ER will be building me a 10:1 LR2.4 starting next week. Currently I have a set of GSC 156mm H Beams that are rated to 550-600tq. I'm still on the fence about putting I beams in for the extra $300. I think getting 550tq making out my Red or future Black won't be to hard and that will be pushing the H beams... What do you just think? H beam or I beam?

I would like to stick with the H beams because they are cheaper. I think If I was building a 2.0 I would keep the H beams because I wouldn't be so worried about the tq getting that high, however I'm kinda scared of the 2.4 tq.

Mikey

Last edited by BLKCarbonEVO; Mar 11, 2010 at 12:55 PM. Reason: added
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Old Mar 11, 2010 | 12:57 PM
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From: milwaukee, wi
any idea who actually makes them? are they r&r rods?
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Old Mar 11, 2010 | 12:58 PM
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From: Sanford, FL!!!
what is the end HP goal? What kind of driving?
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Old Mar 11, 2010 | 01:01 PM
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The H beam does not exist from GSC, they only sell I beams now. They are not R&R though.

aaron
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Old Mar 11, 2010 | 01:24 PM
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Originally Posted by SBR INC
what is the end HP goal? What kind of driving?
Marti, thanks for chiming in. I'm shooting for 600-625hp on the Red and I don't plan on going over 35psi. The Black will be the upgrade towards middle of summer and I hope to hit 750hp.

It will be mostly a street car and occasional trips to the track.

Honestly, the more I think about it the more I would feel safe going with I beams. Trapping in a 700+hp Black I would have to rev to 8.5-8.8 and feel the I beams might be a better choice at holding the motor together at that stress level.

Mikey
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Old Mar 11, 2010 | 01:26 PM
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From: milwaukee, wi
for peace of mind alone i think its worth upgrading. otherwise you will always worry when the tach gets up there.
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Old Mar 11, 2010 | 05:25 PM
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Originally Posted by BLKCarbonEVO
Marti, thanks for chiming in. I'm shooting for 600-625hp on the Red and I don't plan on going over 35psi. The Black will be the upgrade towards middle of summer and I hope to hit 750hp.

It will be mostly a street car and occasional trips to the track.

Honestly, the more I think about it the more I would feel safe going with I beams. Trapping in a 700+hp Black I would have to rev to 8.5-8.8 and feel the I beams might be a better choice at holding the motor together at that stress level.

Mikey
Honestly with that power and the stroker I would put the lower FD in the tranny. If you did that you could trap ~140+ in 4th at probably 8k or less (not exact numbers just estimating). I mean the powerband you are going to have I think your gearing is going to be too short and you will be shifting too often.
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Old Mar 11, 2010 | 06:02 PM
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Originally Posted by dbsears
Honestly with that power and the stroker I would put the lower FD in the tranny. If you did that you could trap ~140+ in 4th at probably 8k or less (not exact numbers just estimating). I mean the powerband you are going to have I think your gearing is going to be too short and you will be shifting too often.
Tech it's not a stroker, it's a LR2.4 but I get what you mean having a larger 100mm crank hurt rpms... I'm okay with trapping 8.5k. I don't want to go over that. However that was something that I was looking at doing in the Fall. There are a few things that I still need to do. I was looking at gears, triple plate or QM twin, and the FP Black. First things first, I need to get my motor built and paid off before I start getting into debt again

Mikey
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Old Mar 11, 2010 | 07:24 PM
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From: Denver
(I) all the way
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Old Mar 12, 2010 | 12:02 AM
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From: Winnipeg, MB, Canada
I beams that what i went with. Come on mang it's only 300$
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Old Mar 12, 2010 | 07:28 AM
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@ 750 whp with the black, youll likely be over maxing out the h beams in the torque dept. My vote is I-beam sir
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Old Mar 12, 2010 | 07:31 AM
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From: VaBeach, VA
Thanks for everyone opinion. The choice has been made to go I-Beams

Mikey
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Old Mar 12, 2010 | 09:14 AM
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750 on a Black isnt going to happen without the bottle.
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Old Mar 12, 2010 | 09:40 AM
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Originally Posted by JohnBradley
750 on a Black isnt going to happen without the bottle.
TTP is hooking me up with one of their bottles!

Mikey
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Old Mar 12, 2010 | 09:48 AM
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LOL,

I meant a bottle of Scotch cause I'd have to be drunk to try to push a Black that far.

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