02-17-2014, 02:40 PM | #1 |
Drives: 2003 corvette Z06 Join Date: Jan 2014
Location: ontario
Posts: 15
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How fast can I spin my tvs 2300 ?
Am changing things up a little, adding a tpis 102 tb, 3" exhaust .
My setup is 402 ,afr cathedral port heads. I have an 8" powerbond OD harmonic, 3.3" snout, and overdrive cogs. I also have a 1 gallon moroso coolant tank, and a fluidyne heat exchanger with a fan. The dyno was 650/650 The cam was spec`d by the builder, and it has a fair bit of overlap, 17* I wanted this motor to be able to rev, 7200rpm, to save a gear change, 4th-5th, now am having second thoughts. If I calculate my blower speed like this 8"/3.3 x 1.2 x7200 =20945 rpm. But I would like to pulley down, so do I lower my shift rpm`s? e.g....... 3" pulley 8/3x1.2x6600= 21120 rpm ? How are some of you using such small snout pulleys ? I know my cam might be a bit of an issue, but it`s stayin in for now, have read many pro`s and con`s to overlap welcome all comments here is cam card : Last edited by LedfootLarry; 02-17-2014 at 06:00 PM. |
02-17-2014, 05:48 PM | #2 |
Drives: Maggie blown LS3 vette Join Date: Aug 2009
Location: SE TX
Posts: 1,490
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Damn, I wish you could easily raise your c/r to 11:1 and change your cam to something like a 226/238 117 lsa. I think you're about at the top end of how fast you can spin a TVS2300. At some point, even if you evade belt slip, more blower rpm doesn't equal mo power. I don't remember your exact c/r, but do remember it being lower than optimum (at least in my eyes).
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02-17-2014, 07:22 PM | #3 |
Drives: 11 Seconds or Faster Join Date: May 2012
Location: Arvada, Colorado
Posts: 2,797
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I'm spinning to 23000, turn the wick up.
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02-18-2014, 08:13 AM | #4 |
Drives: 2003 corvette Z06 Join Date: Jan 2014
Location: ontario
Posts: 15
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02-18-2014, 08:22 AM | #5 |
Drives: 11 Seconds or Faster Join Date: May 2012
Location: Arvada, Colorado
Posts: 2,797
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IATs skyrocket after the first hit, my tune pulls timing after 180*. I make about 17psi on a 416 with a big cam similar to yours.
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02-19-2014, 08:30 AM | #6 |
Drives: 2007 Corvette C6 983 RWHP Join Date: Dec 2011
Location: Montreal, Canada
Posts: 690
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I think you should address the cam before anything. I run an eforce on a very similar engine build to yours. The eforce is also rated at 20000 max rpm. Spinning it at 18000 and making about 12lbs of boost, I make considerably more power than you are making. That overlap is killing you I think.
You build sounds almost identical although I don't know what compression you are running., 402, underdrive pulley, ported cathedral heads, etc ,etc..
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2007 C6 vert, auto, F55, LT3
LME LS402 , WCCH 245 Heads, Pat G. Custom cam YSI / 3.0 pulley, ARH 1 7/8 headers, NPP Dewitts / dual spals, A&A dual pump fuel system. 3.42 polished gears, hardened shafts, Alky control meth, Cartech line lock, ECS axle loops, Trans brace, 6L80 built by me. ID 1000 injectors, comp rockers, Morel lifters, BT springs, Trend 3/8 pushrods, ATI 10% OD Damper Circle D Triple Disc stall 1009 RWHP @ 7000, 817 RWTQ @ 6000, |
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