ok, ive heard everyone talk about iroc and z28 hp and all, but how much hp does a 305 5.0 v8 blah blah push? stock....i want to know what i need to push to =) i just bought it and i dotn have a job HAH so i need to know what to plan for, thanks

 

probably about 170

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92 25th annv. camaro
midnight black
stock 305 tbi
t-tops

89 camaro
carburated 305
bored .030 over
flat top pistons
bigger valves
heads and block shaved
spoiler
tinted windowshuge white chevy symbol on back
92 stock rims
92 ground effects
www.geocities.com/thirdgenerationcamaro

 

crapola

 

The fact that it's a RS or Z28 or IROC doesn't have TOO much to do with the engine, unfortunately, as the 305 TBI can be had in all three. With that being said...

All of the 305 TBI's (which were the higher-end model of the RS's, with the base rs having a v6) had 170hp.

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89 iroc-z 305 tbi
k&n filtercharger, open element air filter. nuffin' else

 

thanks

 

Yep, 170 HP, sad but true.

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82 Z28 383, Ported 215cc Dart Iron Eagle Heads 72 cc Comb. Chambers, Comp custom grind Hyd roller cam, Speed Pro .250" domes, Wheeler Motorsports 4340 I beam rods, Eagle 5140 steel crank, Weiand Team G intake, Holley 830 DP, hedman headers
Trans: Turbo 350 w/ 4000 stall -- Rearend 7.5 w/ Richmond 4.10's, Auburn Minispool
Best ET:11.60 @ 114.56, w/ a 7.34 1/8 @ 93.50, and a 1.622 60'


89 RS, L03 305, Hypertech Chip,cat delete, Dynomax exhaust,K&N open element Filter,160 stat, MSD coil --Trans:700R4 Corvette Servo -- Rearend: 7.5 GM 3.42 w/ posi-lock

Bassett Racing

 

Open Element and new exhuast will help up that to 180 or 190, some may claim 200. But with some work I am sure you can get it at a decent level.

 

Thankfully the general never disgraced a Z28 w/ TBI. Base cars, IROCs, GTAs, TAs and Formulas all got TBI. In 88-90 there was no Z28 as a model, it was called the IROC (even if it did use Z28 as it's RPO.) In 91-92 when the Z returned they were all TPI.

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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.8 @ 93.1
Stock except ported plenum and dual cats
-=ICON Motorsports=-

- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die

 

Ahh, well... the IROC was just a "nicer" Z, so.. but I see your point. heh

 

i went to napa today to price open element air filer housing and filters, they gave me a figure of 50$, but the way the guy looked the entire time makes me feel as though he didnt know if it was really for my car, (i looked at advanced auto and they could only find the one for the tpi stuff ive seen) anyone know a good place to get that?

 

I claim my open element, cold air Formula hood, and rear secion exaust gave me 190HP.

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

To be installed eventually far far far into the future: Yours if the price is right and I don't have to ship :
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz