aaron7

iTrader: (7)

http://cgi.ebay.com/ebaymotors/ws/eB...477221095&rd=1

In this auction (for an 89 Iroc with 1600 miles btw), the person states this:

"The 305 TPI HO was listed at 220 HP for insurance purposes, cars that were dynoed with this package showed closer to 300 HP"

Is this true? Was it only in 89?

RB83L69

There was no such thing as a "HO" package. It's a buzzword. No "police interceptor" package either by the way.

It's possible it has G92. That would explain why it has 220 instead of 205 or whatever it was. He also got the gear ratio wrong, although it's close to being right for G92. Looks like a good car as far as that goes, but I don't know about any $11k not meeting the reserve kind of good.

Sounds like typical ebay BS to me. But I'm not the ebay police, whose job it is to prevent people from making up stupid lies about their cars to make them seem better than they really are, so I don't let it bother me too much. I merely inform myself as well as possible about the truth before I go to purchase a used car, regardless of the source. I would sincerely hope that anyone who is interested enough in one of htese cars to plunk down that kind of cash on one would do a little research beforehand, maybe visit this board even.

82RECAROTA

..

DJP87Z28

A new twist on Horsepower numbers. At least he is not claiming its a 350 like most sellers.

BadBowtie88

I would never pay $11,000 for a factory 305 car. Hell, I wouldn't pay that for a factory 350 car. JMO of course, but that's just a waste of money.

trans87

Not when it comes to the Turbo Trans AM

DJP87Z28

Maybe, but the the car in question is a stock 220Hp 305TPI.

TTA 1387

This is true but the statement was "any stock 3rd gen" :lala:

Dante93GTZ

iTrader: (5)

Yeah... a 300hp IROC with 15" wheels and the 110mph speedo and no options... right.... the no options thing might denote "true sports car", but not with A/C _&_ the 110mph speedo.

Pure BS.

Steve89GTA

I have the 305TPI w 5speed setup in my 89 GTA. It dynoed 218 and 223 HP to the wheels..that was 1 year appart at two different shops. At that time it was all stock (still pretty much is stock).. had K&N, custom CAI and a high flow exhaust (manifolds back..no headers) at the time.

okfoz

Some things I noticed:
The "Tuned Port Injection" Decal on the rear bumper looks to be painted red, it looks odd in the pic.

The "IROC-Z" Decal on the doors is Red, just a different shade of color than the car. Looks wrong, especially for a 1600 miles car, I would think that it would be more original if the car was never driven.

As a note: In some of the Pontiac Lit, I know the 5.0L TPI engine was referred to as an "H.O." Engine. But to my knowledge there was never an H.O. TPI car.

John

Sgt.D's92RS

All Third Gen with 305's have three hundred and five horses*

*maybe slightly inflated**
**just kidding ***
*** I know I am really kidding

avro206

Nothings odd about the decal and pinstripe colours. I had that ***-awful combo---Victory red (which is really just burgandy) with the red IROC decals and balck/red pinstripes.

Another note--all 305 TPI 5 speeds were 220hp in 88---reguardless if they had G92 or 16" wheels.

Dante93GTZ

iTrader: (5)

As for any of my statements, I was never arguing that 220hp fact. Its a truth with the 5spd...

aaron7

iTrader: (7)

I think the HO TPI is the LB9 with the T5... as I know it got a little more HP (in 88 at least) and a higher redline tach.

Not really a HO, but more output than the other one...

Dante93GTZ

iTrader: (5)

Yeah, but it was never given an HO distinction by GM. HO would mean to me a different RPO code, like LG4 vs. the L69 (the HO model).

They've done it on most other models as well.... L48 vs L82 Corvette motors... LD2 (Quad4 DOHC) vs. LG0 (Quad4 DOHC HO).

See?

Steve89GTA

It may mean the RPO code to you but I know for a fact that a few GM dealerships around here have the 89 305 TPI w5spd G92 Y84(GTA) marked as a HO engine. In 89, Peak HP for my car was actually 230, not 220, but peaked at 4000rpm instead of 4200. The peak TQ was also a touch higher but peaked at 3200rpm.

Wanna know something else REALLY FREAKY?!?!??! My 89 305, yes, 305TPI came originally equipped with 22ib injectors..that's right, 22's not 19's .. I was really suprised too. From 89 till 92, certain 305's received the 22's from the l98.

DJP87Z28

Yes, those mystrey workers on 3rd shift did strange things to cars. I wonder why GM let that happen???

avro206

I was refering to RB83L69

f-crazy

iTrader: (-1)

Your query has found 1 match!
Here are your results:


LB9 : ENGINE, GAS, 8 CYL, 5.0L, TPI, HO

right from the RPO decoder on this site



all the 5 speed 305 cars WERE NOT 220-230 hp...those lame 3.08 geared cars were 205 like the auto cars

neubauej

For some reason I had the impression that a 5-speed g92 dual cat tpi (89) had 240hp? The tech data page states 230hp and 300 ft/lbs w/single cat, and +10hp for the dual cat. True or no?

avro206

Your wrong on that......but you are also right. It just depends on the year in question.

On 90+ up the 305 TPI auto was 210hp (205 in Trans Ams ect)
and the 3.08 geared, 5 speeds were rated at the same as the autos.

From 87-88 the 305 TPI 5 speed was 215hp, 220hp
Didn't matter if it had 3.08s or 3.45s.

89 dual cats were an option on the 5 speed 305 TPI. This boosted it, 10hp to 230hp. These cars would have 3.42s

The only differnce to acount for 10hp in 89 was the dual cats.
So...there was no 205-210hp 305 TPI 5 speed from 87-89.

And.....therefore this ebay car in question has 220hp.

Lets call it a draw

ml258-89iroc

I agree with the above, but 1989 305 g92 had 3.45 gears instead of 3.42. I don't think the car in question is a g92. I believe you had to have 16" wheels and g80 for a g-92

DJP87Z28

Who cares, the car is NOT 300 HP with a factory 305 period.... No matter what it has.

350 TPI

iTrader: (2)

Has it occurred to anyone that the guy knows exactly what he has and is lying about the facts trying to lure someone who knows nothing about 3rd gens.People will add rare to anything to drive the price up.Someone should email this guy.

TPIterror

Not to defend this Ebay guy, cause he seems a little misinformed, but Pontiac referred to the 305 TPI motor as a "High Output" motor on all their sales literature..at least in the early 90's.

The high output package he's referring to is probably the package that gave you the oil cooler, posi, rear disk, and better gear ratio. Pontiac referred to it as the Performance Enhancement Group..I'm not sure what Chevy called it, but I know everyone on here calls it G92.

86transamws6

During 88-90, when all Z28s were IROCs, you could get an IROC with 15"wheels. In 88 the 15s were the old Z28 rims, and 89 they looked just like the 16" IROC wheels but smaller. Usually IROCs that came with 15 inchers had little or no options and had the LO3 engine (base). The other thing that catches my attention is the 110 speedo. I thought all IROCs got the 145 starting in late 86, (even my 86 Z28 had the 145 speedo stock) So whats the deal with this car? Is it a real IROC? If so, is that the origonal engine?

BTW... didnt the G92 cars also get the L98 camshaft?

TPIterror

whoops I forgot..dual cat exhaust too.

And yes, I believe the cars with the perfomance pkg. and the 5spd got a more agressive cam(L98 cam)..although some people say in later years they were the same.

avro206

I am pretty sure that all verts had the 115mph speedo, along with
L03 IROCs (they fore sure had it). So it doesn't really surprise me that 15" TPI cars got it as well.

aaron7

iTrader: (7)

My car:

88 Iroc-Z
115 speedo
Higher redline (5k yellow, 55k red I think)
15" Z28 rims
TPI 5.0 with "agressive" cam
T5

86transamws6

hey aaron, Im from Mass too, near Worcester. What part are u from?

aaron7

iTrader: (7)

Pretty clost to Worcester, I'm right near Fitchburg.

IROCZTWENTYGR8

iTrader: (1)

I could see a low mile L98 car going for what it is now, (low $12,000's) matter of fact I've seen them go for more. But not a 5.0, non-G92, low option, base interior car, like this. It also has no high performance option, 3.47 gears stock, or 300HP. There are lower mile cars on AutoTrader right now (but not as low as that) that are actually worth the high prices. Third Gens are getting up there real fast. Lousy for the buyers but great for owners.

http://autotrader.com/fyc/vdp.jsp?ca...r=&cardist=517
http://autotrader.com/fyc/vdp.jsp?ca...=&cardist=2404
http://autotrader.com/fyc/vdp.jsp?ca...r=&cardist=382
http://autotrader.com/fyc/vdp.jsp?ca...r=&cardist=396

LOTS more out there too. That's just a quick few.

86transamws6

haha oh ya? I only said worcester cause all the Boston snobs don't know where fitchburg is. Ya im in Westminster