1997 RS vs. 1986 Iroc-Z

**ImpalaSSpeed96** · 05-20-2007, 04:41 PM

Originally Posted by Firebirdjones

Thats the problem with people comparing times today with old TPI cars,,,most have over 100,000 miles easily and have been run hard. There are very few low mile TPI cars left that still have life left in them like mine did.

Those times seem irregular to me..... Besides, my Impala has 140k on it and runs as strong as ever. Mileage doesn't mean a tired motor......

**andrew rs** · 05-21-2007, 09:40 AM

Yes the only real 4th gen RS were V6's. They were made in 96 and 97. They have an appearance package that was basically an RS pacage for the V8's but it wasnt considered an RS.

ATI no its not the guy on here its a kid that lives in my area.

**Raoul-Duke** · 05-21-2007, 10:24 AM

Originally Posted by Firebirdjones

It's just a stocker LT1, a convertable at that, with a 3580 lbs. weight at 1/2 tank of gas,,,,with my 200 lbs. butt in there it's a 3780 lbs. race weight,,,which is about typical for most of my cars anyway.

My Iroc has a slight weight advantage at 3440 + me so a 3640 lbs. race weight. About 140 lbs. difference between the cars,,,but still the LT1 has alot more going for it,,,,gears, transmission, a better designed engine with a better intake and cylinder heads, more compression, more camshaft etc, etc...

But my Iroc seems to run a little better than most TPI cars, although it only had 50,000 original miles on it,,,most running around nowadays are pretty much ran into the ground and worn out. Not many low mileage ones left that really give a good example of how these cars used to run.

It's just a snappy running TPI car, I can't really explain it more than that.

But ya, 14.20's from my LT1 is about right on the money from most road test times back in the day when they were new, even the mph is spot on from most. As a matter of fact, I ran accross another 97 LT1 at the track while I was running my 02 SS camaro,,,this was a hardtop car, 6-speed as well, and a very nice low mileage example, one of the cleaner ones I have seen in a while,,,it was still bone stock as well,,,when we lined up he turned a respectable 14.40 at 97 mph,,,,again very typical of a stock LT1,,,,I think his best run that day was in the 14.30's at 98 mph so my vert runs about right for a stocker. Keeping in mind this is all street tire stuff,,,,some stickies would nab a high 13 second run,,,,but my Iroc didn't have that advantage either,,,and the 7.5 rear wouldn't like it anyway.

Sorry gents, we should get back on topic. So did this happen yet Andrew?

i believe ya man..especially if your tpi runs stronger than your lt1... just usually its the other way around,lol...

**mrr23** · 05-21-2007, 06:27 PM

Originally Posted by andrew rs

This kid thinks he will get me on the highway. I told him there is no way. What do you guys think?

1997 RS 3.8 V6 = 15.70 ish
1986 IROC = 15.80 ish

i used to own a 1986 TA. www.fla-thirdgen.org/mrr23

there's a local guy with a 3.8 V6. he took everything off the car. air intake, AIR pump, took exhaust off just after the cat. he's been 14.50 in it.

**drewhenderson13** · 05-21-2007, 07:22 PM

not all RSs had the body kit... im really not sure what the RSs were in the 4th gens
i think the v6 rss had disk brakes all around and better suspension or something like that

if u ask me it was just an exuse to jack the price up a bit by just putting a badge on and a few bodykits

but they did make v8 rss in the pre 98 cars... they didnt make an rs of any kind in 98up

**mrr23** · 05-21-2007, 07:25 PM

the last V8 RS package was in the third gen cars. 1992. came with the 305 TBI. the auto version went 17.4 in the 1/4 mile. my 1995 3.4 V6 5 speed went 16.9 i nthe 1/4 mile.

**drewhenderson13** · 05-21-2007, 07:38 PM

they didnt put rs badges on them caus they already had the z badges but im almost positive 93-97s had v8 rs

did anyone know they made 5 speed v8 cars in 93-97?

**mrr23** · 05-21-2007, 07:44 PM

Originally Posted by drewhenderson13

they didnt put rs badges on them caus they already had the z badges but im almost positive 93-97s had v8 rs

did anyone know they made 5 speed v8 cars in 93-97?

with the introduction of the 4th gen cars, they quit the RS line of cars. GM wanted a definate way to distiguish the V6 cars from the V8.

you will have to show me some info on these V8 RS cars. GM quit putting the T-5 behind 350 motors back in the 80s. which is why you could not get a 5 speed 350 TPI car. the T-5 could not handle the torque output from the 350. for the 4th gen, the T-56 was the only manual put behind the LT1 and LS1 motors.

**mrr23** · 05-21-2007, 07:48 PM

http://en.wikipedia.org/wiki/Fourth-...evrolet_Camaro

the RS came back when they introduced the 3.8L V6 in 1996. then, in 1998, the RS designation was dropped. the ground effects package stayed.

**drewhenderson13** · 05-21-2007, 07:49 PM

not true... i personally know a guy who owned a 94or 95 z28 with a 5 speed factory equiped.. he had the papers and everything

gm does shit like that, if its an option that only goes on a certain kind of car chances are it went on one it wasnt supposed to (not on accident or anything)

some of it was special ordered some of it was using up parts they had extra

**Raoul-Duke** · 05-22-2007, 07:02 AM

Originally Posted by mrr23

with the introduction of the 4th gen cars, they quit the RS line of cars. GM wanted a definate way to distiguish the V6 cars from the V8.

you will have to show me some info on these V8 RS cars. GM quit putting the T-5 behind 350 motors back in the 80s. which is why you could not get a 5 speed 350 TPI car. the T-5 could not handle the torque output from the 350. for the 4th gen, the T-56 was the only manual put behind the LT1 and LS1 motors.

the main reason they was no stick to be put in the l98 f-bods is to boost the sales for the vette...which had a l98 350, and could be optioned in manual

**AKIRA** · 05-22-2007, 08:47 AM

Originally Posted by mrr23

http://en.wikipedia.org/wiki/Fourth-...evrolet_Camaro

the RS came back when they introduced the 3.8L V6 in 1996. then, in 1998, the RS designation was dropped. the ground effects package stayed.

Thank you.

Originally Posted by drewhenderson13

not true... i personally know a guy who owned a 94or 95 z28 with a 5 speed factory equiped.. he had the papers and everything

gm does shit like that, if its an option that only goes on a certain kind of car chances are it went on one it wasnt supposed to (not on accident or anything)

some of it was special ordered some of it was using up parts they had extra

I remember the RS coming into production after a couple of years of the 4th generation hit the streets.

I remember they (well some were) were 5 speeds and they ran 15.7s. I remembered it clear as day cuz I was driving and thinking "jesus, my 89 formula, which was a v8 couldnt even get into the 15s when it was stock."

Originally Posted by mrr23

the last V8 RS package was in the third gen cars. 1992. came with the 305 TBI. the auto version went 17.4 in the 1/4 mile. my 1995 3.4 V6 5 speed went 16.9 i nthe 1/4 mile.

Yeah, can you believe this shit? 17.4?! That is incredibly HORRIBLE for a v8, let alone, an f-body. No wonder Mustangs were dominating back then.

**Firebirdjones** · 05-22-2007, 08:54 AM

Originally Posted by blackz-lt1

the main reason they was no stick to be put in the l98 f-bods is to boost the sales for the vette...which had a l98 350, and could be optioned in manual

Actually the main reason for the auto behind the L98 was because it wasn't rated for the torque output of the 350,,,,vette sales had nothing to do with it. Later on a manual was available in the vettes behind the L98, but it wasn't the 5 speed that came in the 305 cars, it was a redesigned 6-speed of german origin I believe,,,long before GM started using the Tremec 6-speed behind the LT1. GM just wouldn't put that whimpy 5 speed behind a 350. The warranty claims would have killed them.

Even with the 305 TPI that 5 speed was marginal at best. You could grenade one with a few power shifts. They are simply not what everyone talks them up to be.

**Firebirdjones** · 05-22-2007, 09:03 AM

Originally Posted by AKIRA

Thank you.

I remember the RS coming into production after a couple of years of the 4th generation hit the streets.

I remember they (well some were) were 5 speeds and they ran 15.7s. I remembered it clear as day cuz I was driving and thinking "jesus, my 89 formula, which was a v8 couldnt even get into the 15s when it was stock."

Yeah, can you believe this shit? 17.4?! That is incredibly HORRIBLE for a v8, let alone, an f-body. No wonder Mustangs were dominating back then.

Well you are talking about the Throttle body injected cars,,,those were pigs. If you had a tuned port injected car and couldn't at least run in the mid to low 15's with a 305,,,then the car had problems and/or issues.
I was around when these cars were new, and a buddy of mine bought a brand new 86 Z-28 with the 305 Tuned Port which was the highest engine option for the time, with an auto behind it and I believe it had 3.23 gears or better, he loaded this car with everything. And it ran damn strong for a 305. He was running low 15's with it and the car barely had 5,000 miles on it back then.
The 350 tuned port injected car were easy 14 second cars bone stock. Mine ran 14.40's with nothing done to it,,,still had the original plug wires and all just a couple years ago. It weighed 3440 with 1/2 tank of gas and 3640 with me in it (race weight). There were a ton of engine options available for the 3rd gens, with carbed 305's,,,throttle body 305's,,,,, tuned port 305's and tuned port 350's. Not to mention trans and gear ratio options. We have to compare apples to apples here if we want to be accurate.

**Raoul-Duke** · 05-22-2007, 09:03 AM

Originally Posted by Firebirdjones

Actually the main reason for the auto behind the L98 was because it wasn't rated for the torque output of the 350,,,,vette sales had nothing to do with it. Later on a manual was available in the vettes behind the L98, but it wasn't the 5 speed that came in the 305 cars, it was a redesigned 6-speed of german origin I believe,,,long before GM started using the Tremec 6-speed behind the LT1. GM just wouldn't put that whimpy 5 speed behind a 350. The warranty claims would have killed them.

Even with the 305 TPI that 5 speed was marginal at best. You could grenade one with a few power shifts. They are simply not what everyone talks them up to be.

and that six speed in the vettes were never once ever offered in the l98 f-bods...hmmm wonder why??

**Firebirdjones** · 05-22-2007, 09:08 AM

Yes the 5.0 mustangs were quick back then running low 15's to high 14's when stock. Which is why GM decided to up the anty in 1987 and offer the 350 Tuned port engine from the vette. Only difference was the vette got aluminum heads while the F-bodies got stuck with the cast iron pigs.

Right off the bat the F-body 350 TPI's were finally giving the mustang boys a run for their money. The war of the pony cars were started all over again. Now it seems GM can't get off their ass to make anything anymore

**Firebirdjones** · 05-22-2007, 09:10 AM

Originally Posted by blackz-lt1

and that six speed in the vettes were never once ever offered in the l98 f-bods...hmmm wonder why??

Well that german 6-speed was a mammoth trans, and wouldn't fit in the tunnel of the Fbodies, much like the 6speeds of today. When the Fbody was redesigned for the 93 model year room was made for the then new tremec 6speeds.

**Firebirdjones** · 05-22-2007, 09:15 AM

Originally Posted by Firebirdjones

Well that german 6-speed was a mammoth trans, and wouldn't fit in the tunnel of the Fbodies, much like the 6speeds of today. When the Fbody was redesigned for the 93 model year room was made for the then new tremec 6speeds.

Just to add to that,,,,SLP started getting involved around this time as well toward the end of 3rd gen production and made a few firehawks and such,,,,and they made the 6speed an option behind it. It took extensive mods to make it fit, and SLP didn't sell many, the price tag was pretty high

**Raoul-Duke** · 05-22-2007, 09:15 AM

Originally Posted by Firebirdjones

Well that german 6-speed was a mammoth trans, and wouldn't fit in the tunnel of the Fbodies, much like the 6speeds of today. When the Fbody was redesigned for the 93 model year room was made for the then new tremec 6speeds.

i dont think so man..i know someone who had an iroc that got a l98 outta a vette with the manual tranny and dropped it in there...i almost traded my old monte for it...i used to have pics on my other forum

**Firebirdjones** · 05-22-2007, 09:20 AM

Originally Posted by blackz-lt1

i dont think so man..i know someone who had an iroc that got a l98 outta a vette with the manual tranny and dropped it in there...i almost traded my old monte for it...i used to have pics on my other forum

That was GM's excuse,,,I am not saying it won't go in,,,,SLP did it when GM wouldn't offer the manual behind the 350's,,,,but GM didn't screw with it until the car was redesigned to better accomodate the larger trans.