Max RPM's????? - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Mchlgrrsn · 04-27-2013, 02:12 PM

Quote:

Originally Posted by POS Dakota

Honestly, I see no need to go over the factory rev limit on a car driven on the street. Once you do that, you're committing yourself to a good deal more money to keep it together and reliable.

These cars are fat pigs, so unless you're gonna gut it to lighten it up, build something with more stroke and place big emphasis on low speed torque. It's what gets you moving.

High rpm engines are not fun on the street and they are almost always a lazy pain in the ass down low with the required cam to make it rev.

The guy who built the 500cid ERL superdeck motor....he's smart.

I see the op is an automatic, I should read more carefully, I always assume everyone is ls3. Sorry bout that. I paid a lot of money to shift at 6900. Lol.

litle88 · 04-27-2013, 02:59 PM

Oh snap! I just realized that too lol

He'll be ok!

Rhino79 · 04-27-2013, 04:31 PM

I cross the line with mine on the spray at 7500. Limiter is 7600 on mine.

realcanuk · 04-27-2013, 04:40 PM

The trans will give you trouble earlier if you shift over 6500. That is the max they are rated for.

Rhino79 · 04-27-2013, 04:58 PM

Trans life is more related to tune quality. I have hundreds of wot blasts shifting at 6800-7000

realcanuk · 04-27-2013, 05:07 PM

I agree the tune is important, as is the power been put through the trans. High HP and high rpms together are an issue.

Nightmare2012 · 04-27-2013, 05:12 PM

My shittt tuner set my rev limiter at 7500 then I went to my all new reliable tuner and said that was pushing the rods and pistons of the engine and moved it back to 6800

Mchlgrrsn · 04-27-2013, 05:16 PM

Quote:

Originally Posted by Rhino79

Trans life is more related to tune quality. I have hundreds of wot blasts shifting at 6800-7000

Aka the MONEY SHIFT. ... Lol.... It's a thing of beauty ... It's why I mod my car. .... .The sound of a 3d gear chirp may be one of the finest sounds in all the world. I too am in the hundreds.

Rhino79 · 04-27-2013, 05:54 PM

Quote:

Originally Posted by Nightmare2012

My shittt tuner set my rev limiter at 7500 then I went to my all new reliable tuner and said that was pushing the rods and pistons of the engine and moved it back to 6800

7500 is high for that cam. I assume peak was around 6400-6600?

POS Dakota · 04-27-2013, 06:12 PM

7500 is high for any ls3 stock bottom end.

They call it "grenading" because it usually starts by pulling out the pin.

Rhino79 · 04-27-2013, 06:35 PM

Yeah 7500 is real high, but these motors are tougher than most think they are.

Nightmare2012 · 04-27-2013, 07:05 PM

My shift points are at 6500 and rev limiter at 6800 my car feels really strong now just some more tweaking and it'll be perfect!

thahemp · 04-27-2013, 07:53 PM

I always figured the valvetrain would be the first to fail on a street pushrod motor. Kinda neat that it'll keep up with 7000+. It must be lighter than i thought it was.

POS Dakota · 04-27-2013, 08:09 PM

Quote:

Originally Posted by Rhino79

Yeah 7500 is real high, but these motors are tougher than most think they are.

hehe right they are, but for how long?
If you dont mind fixing one, nuff said.

If you're a kid on a limited budget and can't, probably shouldnt go there.

The engines I build for my amusement are rebuilt usually in the first 20-30k miles. Even with high quality parts and machine work, the bores scuff, the rings give up, and sometimes you find things that scare you like a broken cap, or cracked cylinder. Once you start pushing things, shit can and will happen.

04-27-2013, 02:59 PM	#16
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	Oh snap! I just realized that too lol He'll be ok! __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

04-27-2013, 04:40 PM	#18
realcanuk Drives: 2007 Corvette C6 983 RWHP Join Date: Dec 2011 Location: Montreal, Canada Posts: 690	The trans will give you trouble earlier if you shift over 6500. That is the max they are rated for. __________________ 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,

04-27-2013, 05:07 PM	#20
realcanuk Drives: 2007 Corvette C6 983 RWHP Join Date: Dec 2011 Location: Montreal, Canada Posts: 690	I agree the tune is important, as is the power been put through the trans. High HP and high rpms together are an issue. __________________ 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,

04-27-2013, 07:53 PM	#27
thahemp Geek Drives: 2012 Black LS3 Join Date: Jan 2012 Location: Derby, KS Posts: 4,343 View My Garage	I always figured the valvetrain would be the first to fail on a street pushrod motor. Kinda neat that it'll keep up with 7000+. It must be lighter than i thought it was. __________________ 01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001 x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x

04-27-2013, 04:31 PM	#17
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	I cross the line with mine on the spray at 7500. Limiter is 7600 on mine.

04-27-2013, 04:58 PM	#19
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	Trans life is more related to tune quality. I have hundreds of wot blasts shifting at 6800-7000

04-27-2013, 05:12 PM	#21
Nightmare2012 come find out;) Drives: stockish 2012 camaro ss Join Date: Oct 2012 Location: speed county Posts: 2,166 View My Garage	My shittt tuner set my rev limiter at 7500 then I went to my all new reliable tuner and said that was pushing the rods and pistons of the engine and moved it back to 6800

04-27-2013, 06:12 PM	#24
POS Dakota Drives: GMs and Chryslers Join Date: Nov 2012 Location: Detroit Posts: 367 View My Garage	7500 is high for any ls3 stock bottom end. They call it "grenading" because it usually starts by pulling out the pin.

04-27-2013, 06:35 PM	#25
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	Yeah 7500 is real high, but these motors are tougher than most think they are.

04-27-2013, 07:05 PM	#26
Nightmare2012 come find out;) Drives: stockish 2012 camaro ss Join Date: Oct 2012 Location: speed county Posts: 2,166 View My Garage	My shift points are at 6500 and rev limiter at 6800 my car feels really strong now just some more tweaking and it'll be perfect!