Stock '89 IROC-Z 5.7L RWHP - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

F-16 Camaro · 12-05-2013, 03:30 AM

My best friend has an '89 IROC-Z that has been in shambles for the last 10 years.

I was driving him around in my 2010 Camaro SS the other day and he was saying how he didn't like the current gen cars.

Then he started talking about how his car was a beast and had all kinds of power. I remember riding in it a LOOONG time ago, so I decided tonight to check the stats for his car...

I had a hard time finding a direct answer, but I came upon this:
"240HP / 345Torque"

Is this accurate?

its a syn · 12-05-2013, 03:58 AM

And that would be pushing it IIRC.

376LS3 · 12-05-2013, 04:53 AM

I have an IROC and I can guarantee there is not gobs of power! A V6 5th gen would walk me hands down. He seems to be a dreamer.

rtcat600man · 12-05-2013, 05:53 AM

Quote:

Originally Posted by 376LS3

I have an IROC and I can guarantee there is not gobs of power! A V6 5th gen would walk me hands down. He seems to be a dreamer.

The IROC has more torque providing a better 60' time and even 1/8 mile time. However, the newer V6's have more HP and can come thru at the top end.

I took the following information from dragtimes.com

Comparing some of the 89 IROC's to my V6.

AZCamaroFan · 12-05-2013, 11:03 AM

Quote:

Originally Posted by F-16 Camaro

I had a hard time finding a direct answer, but I came upon this:
"240HP / 345Torque"

Is this accurate?

yes that's correct. they did feel pretty powerful with all that torque. you have to remember people, they were only 3,370 pounds.

F-16 Camaro · 12-06-2013, 04:15 AM

Oh my God, I would've never thought 240. I'm literally speechless.

F-16 Camaro · 12-06-2013, 04:15 AM

Now I want to help him work on his car, so that it will run so I can smoke him!

3rdgen3 · 12-09-2013, 08:02 PM

Quote:

Originally Posted by F-16 Camaro

Now I want to help him work on his car, so that it will run so I can smoke him!

Unless his car has quite a few mods, theirs no way he will smoke you lol.

Stock 5.7 350 TPI cars run 14.3's at theres BEST, STOCK.

TPI is terrible for going fast.

If he converted that L98 350 to Carb or to a Holley Stealth ram setup and an aftermarket cam, then he would definitely give you a run for your money.

I had an 11 second 3rd gen Camaro. It weighed ~3100lbs and made ~480rwhp, 6-speed Manual. When it had 347rwhp and weighed 3,250lbs, I ran 13.2 @ 111 MPH with no traction. That's stock 5th gen SS territory.

Stock TPI cars are not fast. They're burnout machines though!

Shortbus · 12-11-2013, 10:21 PM

Funny, mine was 220HP and I thought it was fast back then. Nothing like today's models.

Sickness91Z28 · 12-11-2013, 10:26 PM

Agreed

Torque monsters are about it when it comes to the 5.7 TPI's. I have a 91 Z 5.7 and it is the biggest turd as far as power goes. Nothing special at all as far as power goes
Stock 90-92 5.7's are rated 245 h.p. 345 lbs of torque. RWHP can't be much at all

Obsessive Camaro Disorder · 12-28-2013, 07:56 PM

Another thing to consider is the TPI runs out of breathe at 4500 rpm.

Although on the autoX course the IROC will walk all over the 5th gen unless the 5th gen is 1LE or ZL1.

Mexicojoe · 01-07-2014, 11:52 PM

Stock z28 have 240 hp, TPI is deffnly not the way to go lol LS1 is where it's at

joelster · 01-08-2014, 06:41 AM

My '91 Z28 with the 350 had a lot of bolt-ons done to it. It's best time at our local 1/8th mile was a 9.03, it did have a little more in it (I had to baby it out of the hole), so possibly 8.85 or so. That translates to roughly 13.7-13.8 in the 1/4. That's with headers, a cat-back, a CAI, airfoil, chip.

EmeryZ28 · 01-08-2014, 07:43 PM

in 1989 an IROC with 245HP/345 TQ was pretty impressive. If it had the g92 with good gearing, they were pretty stout for that era.

would love to find a clean one, but they have become almost non existant!

seems like the only ones out there are beaters, highly modified drag cars, or a few garage queens with 3,000 original miles and a $30k price tag!

12-05-2013, 03:30 AM	#1
F-16 Camaro Drives: 2010 Camaro 2SS Black Join Date: Jun 2013 Location: Alamogordo, NM Posts: 608 View My Garage	Stock '89 IROC-Z 5.7L RWHP My best friend has an '89 IROC-Z that has been in shambles for the last 10 years. I was driving him around in my 2010 Camaro SS the other day and he was saying how he didn't like the current gen cars. Then he started talking about how his car was a beast and had all kinds of power. I remember riding in it a LOOONG time ago, so I decided tonight to check the stats for his car... I had a hard time finding a direct answer, but I came upon this: "240HP / 345Torque" Is this accurate?

12-05-2013, 03:58 AM	#2
its a syn B.O.D. 02/16/10 Drives: 2010 SGM Sp. Edition 2017 RS Conver Join Date: Jun 2010 Location: Albia,Iowa Posts: 3,959 View My Garage	And that would be pushing it IIRC. __________________

12-05-2013, 04:53 AM	#3
376LS3 Eh, that'll happen Drives: 2010 2SS Join Date: Apr 2012 Location: Mesa, Arizona Posts: 1,841	I have an IROC and I can guarantee there is not gobs of power! A V6 5th gen would walk me hands down. He seems to be a dreamer. __________________ 2010 Camaro SS LS3 - No Modz

12-11-2013, 10:21 PM	#9
Shortbus Drives: 88 IROC Z28 Join Date: Mar 2009 Location: Boston Posts: 126	Funny, mine was 220HP and I thought it was fast back then. Nothing like today's models. __________________ LB9 Ohv V8 220 @ 4400 290 @ 3200 TPI 9.3:1 305/5.0 IZ (w/man trans)

12-11-2013, 10:26 PM	#10
Sickness91Z28 Reaper Crew Drives: Blown 2010 Camaro SS Join Date: Aug 2012 Location: Indiana Posts: 985	Agreed Torque monsters are about it when it comes to the 5.7 TPI's. I have a 91 Z 5.7 and it is the biggest turd as far as power goes. Nothing special at all as far as power goes Stock 90-92 5.7's are rated 245 h.p. 345 lbs of torque. RWHP can't be much at all __________________ 2010 Camaro SS SLP TVS2300 Blower, Blower Cam, Lingenfelter Heads, Meth Injected, 5lbs of Boost@700 BHP Pedders XA Coilovers

12-06-2013, 04:15 AM	#6
F-16 Camaro Drives: 2010 Camaro 2SS Black Join Date: Jun 2013 Location: Alamogordo, NM Posts: 608 View My Garage	Oh my God, I would've never thought 240. I'm literally speechless.

12-28-2013, 07:56 PM	#11
Obsessive Camaro Disorder Drives: 69 Camaro and 92 RS Join Date: Feb 2013 Location: Iowa Posts: 180	Another thing to consider is the TPI runs out of breathe at 4500 rpm. Although on the autoX course the IROC will walk all over the 5th gen unless the 5th gen is 1LE or ZL1. __________________ There are 3 ways to do any project. Good, fast, and cheap. You can only choose two. If it's done good and fast, it isn't going to be cheap. If it's done good and cheap, it isn't going to be done fast. If it's done cheap and fast, it isn't going to be good.

01-07-2014, 11:52 PM	#12
Mexicojoe Drives: Camaro iroc z28 v8 5.7l tpi 350 Join Date: Nov 2013 Location: Tulsa,ok Posts: 5	Stock z28 have 240 hp, TPI is deffnly not the way to go lol LS1 is where it's at

01-08-2014, 06:41 AM	#13
joelster Drives: '94 Z28+ '15 Z/28 Join Date: Jun 2009 Location: Cheektowaga, NY Posts: 1,282	My '91 Z28 with the 350 had a lot of bolt-ons done to it. It's best time at our local 1/8th mile was a 9.03, it did have a little more in it (I had to baby it out of the hole), so possibly 8.85 or so. That translates to roughly 13.7-13.8 in the 1/4. That's with headers, a cat-back, a CAI, airfoil, chip. __________________ 1973 Mach 1, 351C cruiser '15 Z/28 Red Hot, A/C 1980 Z28- resto-mod project 1979 Y84 Trans Am 1986 IROC-Z

01-08-2014, 07:43 PM	#14
EmeryZ28 Drives: 2011 Camaro 2SS/RS LS3 Join Date: Aug 2013 Location: Tampa Bay Posts: 812	in 1989 an IROC with 245HP/345 TQ was pretty impressive. If it had the g92 with good gearing, they were pretty stout for that era. would love to find a clean one, but they have become almost non existant! seems like the only ones out there are beaters, highly modified drag cars, or a few garage queens with 3,000 original miles and a $30k price tag! __________________ 2015 Silverado Z71 6.2/2011 Camaro 2SSRS LS3/2014 Cadillac ATS 2.0T