I dove my friends 89 rs auto, this weekend +.30 pistons are the only thing that can be considered mods on this engine. This car pulls very well to 6800rpm.
Is this typical for an LO3?
what do your engines pull to?
Im very impressed with the performance of this car and cant see why these are considered non performers.
Thanks!
SSC

------------------
85 Camaro, 355/400 "drag car" in moth ***** 13.1@ 101mph on its last season run.
Plans: Possibly add N20 for next season.
82 Firebird, 305/350 currently moth balled.
Current plans: Rebuild 305 with flat tops instead of the dished "cups" for pistons or slightly built 327 with the 58cc heads from the LG4, Upgrade the 2:73 to 3:73 or 3:42 and replace the turbo 350 with 700r4.


"Web site under construction"

G0D Bless.

 

lol i dont think that the average lo3 pulls that high, must have something else

 

Wow, 6800, I have never had mine that high. Mine pulls through 4,000 pretty nice though.

Phil



------------------
89 IROC 5.0 TBI
89 RS 5.0 TBI, T-Tops, Soon to be a IROC clone.

 

Just pistons? No cam, lifters, springs, rockers? wow! Mine (stock) only pulls to ~4300 RPM (in drive, not manually shifter).

 

Wow! I wish that I could get mine that high, then I'd be in the 15's.

------------------
1988 Camaro Sport Coupe

• 305 TBI
• 700R-4
• 14"x3" K&N Filter
• Flowmaster Cat Back System w/ 3&1/2" tips
• Y2K Origional Vette Rims
• Pioneer 6200 Deck
• 2 Kenwood 600 watts
• 2 Infinity Reference Subs
• Sony 3-way 6x9s in custom panels
• up to 137.0 dB
• "speed" stripes

Coming soon...4th Gen Seats

 

I have had mine to 6000 only a few times and it's stock except for the mod's listed. 6800 with peanut cam?

------------------
91 RS 5.0 TBI....Edel. TES headers .. 3" exhaust ...Dynomax muffler...5spd... 3.08...underdrive pulleys...cold air K&N flat bottom breather...strut tower brace...6-point rollbar...sub-frame connectors...Koni shocks and struts...16" Black GTA wheels...Autometer guages...custom chip...Grant steering wheel...a/c delete...smog delete...rear seat delete...ultimate TBI mods...afpr...36mm front and 25mm rear swaybars with poly bushings...

 

Yea 6800 I helped "did" rebuild the engine a year ago right before I moved. I never had chance to punch it then but it felt like it had alot more than the 3k we were limiting it to "break in". As far as we know its the stock roller cam. He doesent even have a K&N on it or TBI mods "yet "
So its abonormal for a lo3 to put up this rpm?
SSC


Edit: There might have been some tranny mods becasuse it will bang to 6800 per gear in drive and it feels like it might have a kit in it.




[This message has been edited by SSC (edited October 01, 2001).]

 

my car pulls to 4,000rpm then dies after that

------------------
Steve
88 Firebird TBI(WS6),TH700R4 - Open Element, Catco 2 1/2 High Flow Cat, K&N filter 14*4 element, 2 3/4 pipe with flowmaster 80 series with 2 1/2 inch turndowns, 180 Stant thermostat, Accel cap and rotor, L98 cam

 

no its not normal to pull that high!! you either got a good deal when you got it or you just have a "special" engine somekind of freak engine

 

My 350 with a mild cam does not "pull" that high. Power drops off at about 5800RPM I guess it might ravv that high if I tried it.

------------------
69 Chevelle 2dr hardtop blue, bench seats, 12 bolt w/3.73's muncie 4 speed. TBI w/custom harness and prom best 14.5@90

 

mine will pull to 5 grand. actually it will pull a little more, but I didn't think that the valve springs could take that kind of abuse. (stock heads with 115,000 miles)

------------------
late model 91 rs, fully loaded, auto, t-tops, red leather, paint- gm red and yellow blend (light red), custom painted 16" Camaro rims
305 tbi flat base 14"x3" with K&N, hypertech chip, accel super stock plug wires, only use full synthetic oil and delco filter, 2 1/2" cat delete pipe, Edelbrock 3" cat-back
MTX sub and amp, Bose all around
vic_v8@yahoo.com
street kills: New v-6 stang, 96 v6 camaro, totally killed '86 SC Camaro (305), 91 z 28 with 305
15.854@87.57 (I think I could have it 15.5 with good tires and two more runs)
next month: rest of ultimate tbi

 

6800???
i really doubt that!!

------------------
1991 banditt2 #130 of 600
Project 350 TPI Banditt II
http://www.street-dawg-racing.cityslide.com
www.gcfba.com (Greater Cincinnati F-Body Association)
http://www.cincyspeed.com/

 

the stock heads cant handle 6800 without breaking something.. i pushed mine to 5500 a few times but moslty around 5000 is good for me. the peanuts cam cant handle that i agree..

------------------
91 camaro RS
- 305 TBI
Mods: Performer TBI intake, 1" TBI spacer, K+N, jet fan switch ,160 thermo,Accel control module, Jet Stage 2 chip, edelbrock TES headers, Compleate 3" Flowmaster exhaust, Edelbrock springs, KYB struts and shocks, 700R4 built by TSI, SLP tq converter, b+m trans cooler, white guage faces, megashifter..
next month: spohn LCA's and panhard rod, BMR relocation brackets, 323 gear, lt1 cam , 350 heads

 

I pull to about 4800 then die with the stock cam. That changes with new cam and heads though...

------------------
1992 Camaro RS (Auto) 5.0L TBI
-
Performance mods
NOS (125 HP shot)
Dynomax cat-back exhaust
Hedman headers
K & N open element/ X-Stream lid
MSD 6A ignition
MSD 8.5mm plug wires
LT1 camshaft
Soon to be installed:
Edelbrock intake manifold
B & M 2400 RPM stall torque converter
Trans Go shift kit
World Products Torquer heads

Audio
Sony Xplod CDX-M610 head unit
Pioneer 2-way 4x6 front speakers
Pioneer 3-way 6x9 rear speakers
12 inch Pioneer VCCS PRO subwoofer
QLogic sealed box
Kicker ZR360 amplifier
Lightning Audio 1 farad capacitor

Other
Macewen White Faced Gauges/Shift overlay
A-pillar gauges (Phantom oil pressure, Air/Fuel)
180* thermostat
Window Tint

 

Are you sure the tach was wired right? Even with a better ignition, better ignition module,dual snorkel,and a great exhaust mine only pulls to a max of 5300rpm

 

Yep 6800 almost burries the 7k tack, and it is wired correctly. These are the stock heads and stock valve springs. Im not certain about the cam "it looked stock" I havent messed with alot of roller cams so I cant say for sure. This car was just purchased and fixed for transportation nothing more. The guy that owns it is a cheap A$$ and wouldent do anything to it that costs extra. He griped about putting poly rings in because they were 10$ more. So Im certain it was not modified after I built it. It probable that the prevoius owner installed an lt1 cam and vett servo, but the springs are stock and hold up quite well to high rpm.I fairly sure this car has 2:73's or 3:08's in it also becasue it doesent spin the tires well in 1st but on second and third shift they get loose.
I dont know but it makes me very Pi$$ED off that I have to spend a butt load of cash to make my cars go fast and this one is near stock and pulls as high as my truck and 400 more tham my camaro.
SSC

 

I had an old 305 w/ open element and headers w/ cat back and it pulled well up to 6K. When I ran open headers it didn't want to stop pulling and I took it to 7K!! THAT WAS NOT SMART!!!!!!!! no damage...but it is possible I guess.

------------------
Alex A. (aka chevyboy)
1992 Z-28 L98/1LE. Heritage Edition. SLP runners, gutted cats, SLP 3" cat-back & muffler. 3" flo-tech cut-out, SLP TB foil, K&N filter @ TB, 3.23 posi rear.

 

sorry guys, but I have a pretty mean cam and my car falls flat on its face past 6300RPM. There is just no way the LO3 can take that kind of beating. I remember when I had mine it would feel like someone turned the car off when it passed 5500RPM.

------------------
91 RS W/carbed 350, Vortec heads, performer rpm, Comp cams Xtreme energy 224/230 duration and .477/.480 lift. BFG Drag radials. 3.42 posi,Corvette servoed 700r4, 3000rpm stall converter. Edelbrock TES, 3inch cat, flowmaster with single 2.5 inch exit.
Best time yet to come
13.0 @ 107- N/A
12.5@ 117- 100HP Nitrous

This is a Pic of my car in race trim www.tbns.net/billyjay/camero.jpg

Yes I know how to spell camaro- so dont ask. I didnt make the link

 

Does it PULL to 6800 or does it rev to it?
I have a LT-1 cam, headers, 3" exhaust, Edelbrock Performer TBI manifold, all the TBI mods except adjustable FPR, MSD 6-AL, Open Element with a flat base and no spacer ring, 350 injectors, and a well tuned chip, and 5800 RPM's is alot for this engine. It'll REV to 6800 if I'd let is, but it'd never pull to those RPMs. At 5500 it's outta breath. He must either have quite a cam with good heads, or there's some kind of mistake here.

 

No, it pulls to 6800 If you floor it from a dead stop in "D" it will pull to 6800rpm about 30+ish mph then shifts into second with a squeal then back up there in second. If your driving about 25mph and punch it in "D"
it will pop down to 1st slap 6800, then 6800 in second. It really doesent have alot of off the line grunt but after 10 mph it pulls hard. Im going to convince him to bring it down to the track next summer to see what kind of time it will run "me driving " but Im thinking its capibal of low/mid 14's up here 4800ft above sea level. Either that or I pay to have it on the dyno to satisfy my curiuosity.
I guess Im wating until next summer
Thanks for the info guys I appreciate it.
SSC

 

Ok...um, the key thing here that tells me the tach *IS* wired wrong is that the car is doing 30+mph @ 6800rpm in 1st. You said it had a 2.73 or 3.08 (most likely)...well, at those rpms, with that rear, in 1st gear, the car would be at something like 50+mph. Not 30. Sorry, but the tach is wired wrong or plain not accurate.
Like everyone else has said, the stock L03 heads/cam do not support pulling to 6800. Hell, I'm not even sure it would free-rev to 6800. I think you'd get valve float and make no power whatsoever.

-Kevin Moore
93 9C1 TBI 350

 

Im not 100% sure that it was 30. But you must remember were talking a 700r4 here. The 1st gear is like granny gear, its not a wide ratio gear.
The tack could be wrong I dont know for sure, I will find out next time I see the car.
SSC