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How should a good RS feel?

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Old Jun 6, 2008 | 08:50 PM
  #1  
91 RS Drop Top's Avatar
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From: Montgomery, AL
Car: 91 RS Convertible
Engine: 350 TBI
Transmission: Stock Automatic-for now
Axle/Gears: 3.23 posi
How should a good RS feel?

Ok, My 91 RS has 140K mi on it and I only got it a few months ago. I think it runs pretty good, but I don't know how these cars should feel when they are tuned right. I have 3.23 gears with a limited slip and I can spin out if I crank the wheel and get on it, but I can't spin the tires on a dry road from a standstill while keeping the wheel straight. I have pretty good pickup after I get moving butno wheel spin from a standstill. Obviously its not the wheelspin itself I'm interested in, but I think its a decent way to describe what the throttle response feels like.

Is this normal for these cars? I had an 88 V6 oldsmobile that would spin the tires with ease, so I'm shocked that this camaro won't.
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Old Jun 6, 2008 | 09:16 PM
  #2  
billybird's Avatar
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From: ny
Car: 89 Formula
Engine: LB9 TPI
Transmission: 700R4
Axle/Gears: 3.73(coming soon)
Re: How should a good RS feel?

yea...they only made 255ftlbs tq...plus its gettin tired..

..maybe your v6 car has better gears to spin
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Old Jun 6, 2008 | 09:45 PM
  #3  
panzer's Avatar
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From: Mishawaka, IN
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: limited slip
Re: How should a good RS feel?

I agree with billybird. Mine spins like crazy. And its bone stock. Rebuild that baby or drop in a 350. Then she'll spin for ya.
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Old Jun 6, 2008 | 10:12 PM
  #4  
91 RS Drop Top's Avatar
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From: Montgomery, AL
Car: 91 RS Convertible
Engine: 350 TBI
Transmission: Stock Automatic-for now
Axle/Gears: 3.23 posi
Re: How should a good RS feel?

So you definitely would expect a stock RS, auto tranny to be able to light the tires, from a standstill, with the wheel straight on a dry road? I thought surely any V8 camaro should.

When I went to 3.23 I added the limited slip. Would that be enough to keep it from spinning? It didn't really burnout before either with teh 2.73 open.
----------
I just noticed you have a 4.11. Obviously that helps, but I had a 4 .11 for a while and it still only spun a little. I wouldn't call it a burnout.

Last edited by 91 RS Drop Top; Jun 6, 2008 at 10:14 PM. Reason: Automerged Doublepost
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Old Jun 6, 2008 | 11:14 PM
  #5  
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From: Manchester, CT + Nashua, NH
Car: 90 Firebird Formula
Engine: LO3
Transmission: T5
Axle/Gears: 3.08 one wheel peel
Re: How should a good RS feel?

With an auto tranny, you gotta powerbrake it to get the tires smoking.
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Old Jun 7, 2008 | 08:17 AM
  #6  
91 RS Drop Top's Avatar
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From: Montgomery, AL
Car: 91 RS Convertible
Engine: 350 TBI
Transmission: Stock Automatic-for now
Axle/Gears: 3.23 posi
Re: How should a good RS feel?

Ok, that sounds exactly like mine. Only spins with the brake or with the wheel turned.
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Old Jun 7, 2008 | 09:36 AM
  #7  
86firebird350's Avatar
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From: Rock Hill, SC
Car: 91 GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: stock
Re: How should a good RS feel?

sounds like you could seriously benefit from a good tune-up, definately a seafoam treatment or two, especially with 140k miles on it.

fwiw my car, with 2.73 open gears and a tiny 215 street tire, will spin its one tire fryer from a stop if i just stomp it. and itll spin through most of first if i stall it up any.
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Old Jun 7, 2008 | 09:43 AM
  #8  
82Five-O's Avatar
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From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
Re: How should a good RS feel?

Originally Posted by slow_90firebird
With an auto tranny, you gotta powerbrake it to get the tires smoking.
Maybe YOU have to power brake, but i don't have a problem. And i only got a stock turbo 350 from a pickup.
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Old Jun 7, 2008 | 10:32 AM
  #9  
91 RS Drop Top's Avatar
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From: Montgomery, AL
Car: 91 RS Convertible
Engine: 350 TBI
Transmission: Stock Automatic-for now
Axle/Gears: 3.23 posi
Re: How should a good RS feel?

I just did air filter, breather, cap, rotor, wires, plugs and timing. Maybe the limited slip gives just enough extra traction to keep these cars from wanting to burn out. It runs smooth and quiet and seem strong once its moving.
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Old Jun 7, 2008 | 10:42 AM
  #10  
DM91RS's Avatar
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From: Ga
Car: 91 RS
Engine: 305
Transmission: T5
Axle/Gears: 3.73
Re: How should a good RS feel?

Just keep adding parts like headers, intake, cam, tuning and you will wish you had no wheel spin again.....
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Old Jun 7, 2008 | 11:11 AM
  #11  
ccook-92-305's Avatar
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From: Carbondale/Sciota IL
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: 700R4 w/transgo 700 shift kit
Axle/Gears: 3.42 posi
Re: How should a good RS feel?

ive got all the bolt ons. headers, exhaust, k&n, smog pump delete, no cat, etc. and with my 3.42's and posi it will squall the tires on a cool day if i just stomp on it from a stand still but no smoke or drivin sideways unless i brake stand it then ittl spin through first.

yours sounds pretty typical of a 305 theres not much there haha. forget the bolt ons on the 305 your just wastin time and money get a decent 350 and go with that... just try to stay under 380 ft/lbs or youre gonna start breakin everything behind it.

good luck
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Old Jun 7, 2008 | 12:25 PM
  #12  
91 RS Drop Top's Avatar
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From: Montgomery, AL
Car: 91 RS Convertible
Engine: 350 TBI
Transmission: Stock Automatic-for now
Axle/Gears: 3.23 posi
Re: How should a good RS feel?

BTW, what the heck is a seafoam treatment?
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Old Jun 7, 2008 | 02:11 PM
  #13  
RicksIroc86's Avatar
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From: norfolk, virginia
Car: 84 camaro z28
Engine: 305
Re: How should a good RS feel?

my 91 rs will chirp them alittle bit maybe spin for a second if i stomp on it. but yea my buddies got a buick v6 some 90's model and that bitch will spin like crazy lol
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Old Jun 7, 2008 | 04:27 PM
  #14  
BronYrAur's Avatar
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From: Chicago, IL
Car: 91 Camaro RS Convertible
Engine: 305 TBI
Transmission: 5-Speed
Axle/Gears: 3.42
Re: How should a good RS feel?

Mine barks the tires hard into 3rd gear, is that normal?
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Old Jun 7, 2008 | 04:41 PM
  #15  
Brian21's Avatar
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From: So. Cal
Car: 1991 Pontiac Firebird
Engine: 5.0L TBI
Re: How should a good RS feel?

I have a 305 (160k miles on the clock) with an auto in my firebird and an open dif in the back. I can spin that one tire like crazy just by stepping on it. That's on dry pavement going straight ahead. It'll spin the tires in first and then chirp when the tranny shifts into 2nd. Only real mod I did to it was throw on an open element, it's bone stock other than that.
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Old Jun 8, 2008 | 07:56 PM
  #16  
panzer's Avatar
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From: Mishawaka, IN
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: limited slip
Re: How should a good RS feel?

I do agree my 4:11 does help alot. Last night I did a 20 footer on my road. I couldve went longer but I just got those tires and wanna keep them a little longer. It was awsome though.
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Old Jun 8, 2008 | 08:34 PM
  #17  
Darkshot's Avatar
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From: Sacramento
Car: 91 RS
Engine: 350 TBI
Transmission: WC T5
Axle/Gears: 3.42 Posi
Re: How should a good RS feel?

Suspension condition could play a role in tire spin....my cousins thirdgen is slower than mine but he'll whoop me in any burnout contest because he can't hook up for **** with his 156k mile suspension. I have trouble doing anything other than a quick screech unless I do a brake stand with LCARBs, poly bushings, tubular arms, koni's, etc etc.
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Old Jun 8, 2008 | 09:36 PM
  #18  
91 RS Drop Top's Avatar
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From: Montgomery, AL
Car: 91 RS Convertible
Engine: 350 TBI
Transmission: Stock Automatic-for now
Axle/Gears: 3.23 posi
Re: How should a good RS feel?

Hmmm...that's interesting because my suspension is in terrible shape. Front and rear struts are original. bushings cracked and rotted. I will probably spend most of next weekend working on it.

Whats more, I realized that my car doesn't have the original engine in it. It has a 350 truck engine with the original TBI unit from my car. So not even a chirp with my 350.

I see you have a 350 TBI. What all have you done to it?
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Old Jun 9, 2008 | 06:02 AM
  #19  
86firebird350's Avatar
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From: Rock Hill, SC
Car: 91 GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: stock
Re: How should a good RS feel?

Originally Posted by 91 RS Drop Top
BTW, what the heck is a seafoam treatment?
this link will tell you everything you need to know about seafoam.
http://ls1tech.com/forums/showthread...atment+seafoam
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Old Jun 9, 2008 | 02:36 PM
  #20  
Darkshot's Avatar
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From: Sacramento
Car: 91 RS
Engine: 350 TBI
Transmission: WC T5
Axle/Gears: 3.42 Posi
Re: How should a good RS feel?

Originally Posted by 91 RS Drop Top

I see you have a 350 TBI. What all have you done to it?
What shape are your tires? With stock suspension in bad shape and a 350 TBI you should be able to shred both tires right off, these things are torque monsters.

It's an L05 much like what you've got, stock long block. I've got SLP headers, custom 3" mandrel bent exhaust, full suspension/front end rebuild with poly bushings, cop car injectors, EBL controlled with a home brewed from scratch chip tune.

How do you know it's a 350? If it still the stock 305 chip tune?
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Old Jun 9, 2008 | 02:56 PM
  #21  
DCOWBOYS1975's Avatar
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From: Battle Ground, WA
Car: 1986 Chevy Silverado
Engine: 350 Crate
Transmission: Turbo 400 w/ shift kit
Axle/Gears: dana60/corp14 4.10 gears
Re: How should a good RS feel?

Originally Posted by 86firebird350
this link will tell you everything you need to know about seafoam.
http://ls1tech.com/forums/showthread...atment+seafoam

Will seafoam work for carbed cars??
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Old Jun 9, 2008 | 08:16 PM
  #22  
91 RS Drop Top's Avatar
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From: Montgomery, AL
Car: 91 RS Convertible
Engine: 350 TBI
Transmission: Stock Automatic-for now
Axle/Gears: 3.23 posi
Re: How should a good RS feel?

Originally Posted by Darkshot
What shape are your tires? With stock suspension in bad shape and a 350 TBI you should be able to shred both tires right off, these things are torque monsters.

It's an L05 much like what you've got, stock long block. I've got SLP headers, custom 3" mandrel bent exhaust, full suspension/front end rebuild with poly bushings, cop car injectors, EBL controlled with a home brewed from scratch chip tune.

How do you know it's a 350? If it still the stock 305 chip tune?
I friend of mine got under it and found the casting number, checked and said it was a 350. I'm gonna try and find the other stamp that tells me more info this weekend. Sounds like I may not be able to see it with the accessories mounted, though.

As far as I know it is running on the original 305 tune. Did you tune yours yourself? I need to get a baseline somehow. Don't know anything about tuning, and I have too many other things to fix right now to try and learn, not to mention buy the equipment. I may just have to go to somebody like TBI chips and get one burned.

Do you know anything about the ESC (electronic spark control module)? I was having some timing probs and I got an SES light for the ESC. Did some research and I read that the ESC is different between the 305 and 350. As far as I know, everything (dizzy, comp, TBI unit, etc) besides the block and heads, is from my original L03, so I'm not sure which ESC to go with. Any idea?
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Old Jun 9, 2008 | 09:43 PM
  #23  
myvmax1's Avatar
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Posts: 421
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From: IL
Car: 91RS, 91RS
Engine: 305TBI, 3.1MP
Transmission: WCT5, TH700
Re: How should a good RS feel?

My 160,000mi 305TBI with a T5 will smoke the right rear through two gears and bark in third, with no brake. It just has an open element, and MSD ignition parts. Oh, and hooker comp headers with 2.50 X-pipe crossed duals with Single Chamber FLO's.


Max,
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Old Jun 10, 2008 | 12:08 AM
  #24  
Darkshot's Avatar
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From: Sacramento
Car: 91 RS
Engine: 350 TBI
Transmission: WC T5
Axle/Gears: 3.42 Posi
Re: How should a good RS feel?

Originally Posted by 91 RS Drop Top
I friend of mine got under it and found the casting number, checked and said it was a 350. I'm gonna try and find the other stamp that tells me more info this weekend. Sounds like I may not be able to see it with the accessories mounted, though.

As far as I know it is running on the original 305 tune. Did you tune yours yourself? I need to get a baseline somehow. Don't know anything about tuning, and I have too many other things to fix right now to try and learn, not to mention buy the equipment. I may just have to go to somebody like TBI chips and get one burned.

Do you know anything about the ESC (electronic spark control module)? I was having some timing probs and I got an SES light for the ESC. Did some research and I read that the ESC is different between the 305 and 350. As far as I know, everything (dizzy, comp, TBI unit, etc) besides the block and heads, is from my original L03, so I'm not sure which ESC to go with. Any idea?
Get under either valve cover and get the head casting number, post it here. That will tell you a good deal about the engine.

When I got the car, I wasn't sure if he already changed the PROM or if he left the 305 PROM on there, so, thinking that I'd be doing engine work in the future, I went ahead and ditched the whole ECM and bought an EBL. And yes I did tune it myself.

I'm not sure about the ESC. Maybe post up your block casting numbers from the bellhousing flange so we can see which block you have?
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Old Jun 10, 2008 | 08:45 AM
  #25  
86firebird350's Avatar
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From: Rock Hill, SC
Car: 91 GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: stock
Re: How should a good RS feel?

Originally Posted by DCOWBOYS1975
Will seafoam work for carbed cars??
yes, it will work just fine on carbed motors.
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Old Jun 10, 2008 | 09:07 AM
  #26  
DCOWBOYS1975's Avatar
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Posts: 228
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From: Battle Ground, WA
Car: 1986 Chevy Silverado
Engine: 350 Crate
Transmission: Turbo 400 w/ shift kit
Axle/Gears: dana60/corp14 4.10 gears
Re: How should a good RS feel?

Originally Posted by 86firebird350
yes, it will work just fine on carbed motors.
Have you done it before??? I have a knack of messin stuff up the first time around. Call it a learning curve if you will. LOL.

Trey
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Old Jun 10, 2008 | 07:21 PM
  #27  
91 RS Drop Top's Avatar
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From: Montgomery, AL
Car: 91 RS Convertible
Engine: 350 TBI
Transmission: Stock Automatic-for now
Axle/Gears: 3.23 posi
Re: How should a good RS feel?

Originally Posted by Darkshot
Get under either valve cover and get the head casting number, post it here. That will tell you a good deal about the engine.

When I got the car, I wasn't sure if he already changed the PROM or if he left the 305 PROM on there, so, thinking that I'd be doing engine work in the future, I went ahead and ditched the whole ECM and bought an EBL. And yes I did tune it myself.

I'm not sure about the ESC. Maybe post up your block casting numbers from the bellhousing flange so we can see which block you have?
Do I have to remove the valve cover to see the head casting number? Its gonna be at least this weekend as it is before I can get around to looking for the block and head numbers. I just learned that I need to change the ESC module to the correct one for a 350. My local parts store can't even find the right one for the original engine. can anybody help me out with a part number or source for the ESC to match my 350?
----------
I'll post the numbers as soon as I can get them.

Last edited by 91 RS Drop Top; Jun 10, 2008 at 07:22 PM. Reason: Automerged Doublepost
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Old Jun 11, 2008 | 01:54 AM
  #28  
Darkshot's Avatar
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From: Sacramento
Car: 91 RS
Engine: 350 TBI
Transmission: WC T5
Axle/Gears: 3.42 Posi
Re: How should a good RS feel?

Yes you need to remove the valve cover to see the head casting numbers. You're blind without knowing a bit about what you have, that's all I'm trying to accomplish with that.

Is ESC a different name for Ignition Module? GM Parts direct has the Ignition Module listed as same part number for 5.0 and 5.7 TBI and another one for 5.0 and 5.7 TPI. I honestly don't remember it being one of the things required for a 305 - 350 TBI swap. I could be very wrong though. I didn't do my swap, the previous owner did. Search the archives and see. You might need to grab an ESC for a 350 caprice or something, assuming you have an L05 and not some custom made 350.

Last edited by Darkshot; Jun 11, 2008 at 01:58 AM.
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