Comments on new mtor combo please...
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From: Estero, FL
Parts are now stating to arrive for the new motor. Can I get some feedback from you guys on this one. Keep in mind this is a ORR car NOT a drag car. High RPM's and longevity are key.
346 c.i. LS1
13.99:1 compression
CAM:243/256 572/572 110+0 lsa
Compstar 6.125 rods
Diomand 3.903 10cc domed pistons w/ total seal rings(coated)
Stock nitrated crank
MTI Stage 2R LS6 heads (same heads off old motor)
LSX 90m throttle body and intake manifold
QTP 1 3/4 stepped to 1 7/8 long tube headers w/ high velocity merge collectors out a Dr. Gas boom tube.
Good possibility this motor will get a dry sump thrown on it. Conservative guess on hp......I am going REAL conservative w/ 430rwhp and spinning around 7500. I dont want to get my hopes up to much and then get kicked in the nuts when Igo to the dyno.
Whadya think?
346 c.i. LS1
13.99:1 compression
CAM:243/256 572/572 110+0 lsa
Compstar 6.125 rods
Diomand 3.903 10cc domed pistons w/ total seal rings(coated)
Stock nitrated crank
MTI Stage 2R LS6 heads (same heads off old motor)
LSX 90m throttle body and intake manifold
QTP 1 3/4 stepped to 1 7/8 long tube headers w/ high velocity merge collectors out a Dr. Gas boom tube.
Good possibility this motor will get a dry sump thrown on it. Conservative guess on hp......I am going REAL conservative w/ 430rwhp and spinning around 7500. I dont want to get my hopes up to much and then get kicked in the nuts when Igo to the dyno.
Whadya think?
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From: Estero, FL
Originally Posted by jrp
whats your DCR and is that a FTI grind? what valvetrain as well?
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From: Estero, FL
Originally Posted by gomer
Holy crap man! That's going to be a pretty wicked 346. The only thing I'm wondering about is if that cam will peak too soon to be really effective at 7500rpm.
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From: Estero, FL
Originally Posted by jrp
whats your DCR and is that a FTI grind?
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From: Estero, FL
Yeah thats what they cc'ed out as. tested with my own burret kit. Factory GM gasket. CR is going to be closer to 13.7. I forgot that the 13.99 was with the Lunati 12cc domed pistons.
gotcha. should be a ****** bad *** setup. i assume 116 race gas? is this the setup you were originally gonna go with and then had to back down because of funds or something?
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From: Estero, FL
This is the "budget" combo. So far I have been able to dig parts up pretty damn cheap. Not quite what I wanted. It will still be a race gas only motor though.
The next combo will be the one I go for 200mph with. This one just has to keep me moving at 180mph.
The next combo will be the one I go for 200mph with. This one just has to keep me moving at 180mph.


