How fast can I spin my tvs 2300 ? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

LedfootLarry · 02-17-2014, 02:40 PM

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 :

old motorhead · 02-17-2014, 05:48 PM

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).

2SS45th · 02-17-2014, 07:22 PM

I'm spinning to 23000, turn the wick up.

LedfootLarry · 02-18-2014, 08:13 AM

Quote:

Originally Posted by 2SS45th

I'm spinning to 23000, turn the wick up.

Tell me more! IAT's ?
More info please !!

2SS45th · 02-18-2014, 08:22 AM

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.

realcanuk · 02-19-2014, 08:30 AM

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..

02-17-2014, 02:40 PM	#1
LedfootLarry Drives: 2003 corvette Z06 Join Date: Jan 2014 Location: ontario Posts: 15	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, 07:22 PM	#3
2SS45th Drives: 11 Seconds or Faster Join Date: May 2012 Location: Arvada, Colorado Posts: 2,797 View My Garage	I'm spinning to 23000, turn the wick up. __________________ I Ain't About That Stock Life.

02-18-2014, 08:22 AM	#5
2SS45th Drives: 11 Seconds or Faster Join Date: May 2012 Location: Arvada, Colorado Posts: 2,797 View My Garage	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. __________________ I Ain't About That Stock Life.

02-19-2014, 08:30 AM	#6
realcanuk Drives: 2007 Corvette C6 983 RWHP Join Date: Dec 2011 Location: Montreal, Canada Posts: 690	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.. __________________ 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,

02-17-2014, 05:48 PM	#2
old motorhead Drives: Maggie blown LS3 vette Join Date: Aug 2009 Location: SE TX Posts: 1,490	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).