Some guy is trying to sell me a 305 TBI IROC. I wrote him that such things don't exist, its either TPI or EFI? in '89. Am I right or am I jsut ignorant?

And if I am wrong what advantages does a 305TBI IROC have over a 305TBI RS???

THx

 

There were 305 tbi iroc's built. It was the base engine in a iroc. You had to opt to get the tpi.

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89'Camaro Convertible,96'firebird wheels,79'Z28 hood scoop, Dark yellow green paint from Bonnevilles, tan Mr. Mikes leather interior,Macewen white face gauges.
Dreaming of a RamJet 350,

Open element
Jet fan switch
180 degree thermostat

2nd place is always the first loser!

 

Yeah there actually were IROC throttle body equipped cars. The L03 was the base engine for the IROC from '88 until the IROC's demise in 1990 and 1/2. I personally own an '89 vert IROC with the 305 TBI and the T-5.

 

this is the first time i have ever heard of this!! learn something new everyday.

 

Yes there are 305tbi Iroc's I have a 89. As for advantages the iroc had a better suspension package than the rs.

 

Was fairly common where I'm from. Got the IROC a rep for being a slow car too just like the RS.

The advantage for TBI is better gas mileage and a more reliable car for most of those years. Early TPI cars tended to have more Mass Air Flow Sensor problems and it was the most common part to fail.

The TPI car will be faster, resale better all things equal.

There were also quite a few TBI Formula too. That didn't help the Formula rep as fast street car either.

 

I have an 88 IROC TBI. Before I bought it, I thought all IROCs had TPI 350's. I was pretty disappointed when I found out it had a 305 TBI. But a few thousand dollars, blood, sweat and tears and alot of learning about camaros have all put it where I am very pleased with it.

88IROC t-top
383 Stroker
9.5:1 flat top pistons
Dart Sportsman heads
305 throttle body with 350 injectors
14x3 K&N open air
Hydraulic cam
Taylor 8mm wires
Accel distributor and rotor
180* thermostat
Custom chip
TH350 with B&M shift kit
1 5/8 Hooker headers
2 1/2" dual exhaust/no cats
Gutted smog pump/no AIR tubes
2.73, soon to be 3.42 rear
Centerline 16x8 Auto Drag wheels




[This message has been edited by speedlvr (edited April 14, 2001).]

[This message has been edited by speedlvr (edited April 14, 2001).]

[This message has been edited by speedlvr (edited April 15, 2001).]

 

I looked at buying one of those once. It had the 15" aluminum rims on it with the L03. I don't know, iy just seemed wrong to have an IROC with a 305 TBI and 15" rims. But then agaian, I bought a RS, so go figure.

Be carefull, not all irocs had the good suspension package, it was an option just like everything else.

 

I can see your point. IROC to me meant the ultimate camaro and why get one if it really wasn't. But I saw a lot of potential in this car and I am very glad I bought it. I already had a 92RS.

If a person is familiar with the way an RS handles, they will be able to tell immediately whether or not the IROC has the good suspension package. I was lucky. That's one corner that the original owner did not cut when they bought the car. They DID at least get t tops, power windows, power hatch release, power door locks and cruise control. I guess she wanted the looks and the comfort and wasn't overly concerned with performance...since it had the LO3 and 2.73 rear. I'm kind of surprised that she got the performance suspension.

[This message has been edited by speedlvr (edited April 15, 2001).]

 

This is true. Look for the FE2 RPO on the RPO list, this will prove it has the good suspension. My vert IROC has FE2 and it handles like a dream. My dad says it the best handling car he's ever driven and he's driven and owned a whole hella lot of cars in his life.

 

The base engine for 85-87 IROC's is the LG4 carb. The base engine for 88-89 IROCs is the L03 TBI. The base engine for the 90-92 IROC & Z28 is the LB9 TPI.

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