305 question!
#1
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Car: 1992 camaro rs
Engine: 92 350ci carbed
Transmission: 700r
Axle/Gears: Stock 10 bolt 2:73 gears 😭
305 question!
Hey guys, I used to have a 92 rs with the 305 tbi and it was slow, with 2:73 gears it would still burnout (open diff). Now I have a 89 IROC with the 305 tpi, same gear ratio and posi, I can't spin the tires on a dry road to save my life lol. These are the only 2 305s I've had so I'm just wondering if they're just supposed to be this bad, I heard the tpi had a lot more power than the tbi but it feels the same to me. My 99 silverado 5.3 feels way faster. I put a cammed 350 in the rs and that ran low 14s with the 2:73 and open diff. I'm not expecting that kind of power but I though these cars ran 15s?
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Car: 1992 camaro rs
Engine: 92 350ci carbed
Transmission: 700r
Axle/Gears: Stock 10 bolt 2:73 gears 😭
Re: 305 question!
They're the same tires! Lol the 350 would roast them and now I can't do a burnout
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Car: 1988 Formula Firebird
Engine: 5.3 LM4
Transmission: 4L65E
Axle/Gears: 3.42 True-Trac
Re: 305 question!
All the stockish TPI 305 cars ive driven or rode in have NO PROBLEM spinning tires. With posi.
There must be something wrong. TPIs are torqey.
There must be something wrong. TPIs are torqey.
#6
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: 305 question!
There is something wrong with it then. A TPI 305, hell even an LO3 should lite the tires up no problem.
#7
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Car: 1992 camaro rs
Engine: 92 350ci carbed
Transmission: 700r
Axle/Gears: Stock 10 bolt 2:73 gears 😭
Exact ill what I thought! My lo3 used to light up one tire lol, this motor is supposed to have way more power. My ECM is throwing no codes as well, so I don't know what's wrong, nothing sounds or looks wrong.
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#11
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Car: 87 Trans Am, 99 WS6, 16 Mustang GT
Engine: LB9, LS1
Transmission: 700R4, T56
Axle/Gears: 3.42 Posi, 4.10 Posi
Re: 305 question!
It doesn't have "way more power". Your L03 made around 170hp, the LB9 makes around 200hp. Do the math.
#12
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Car: 1992 camaro rs
Engine: 92 350ci carbed
Transmission: 700r
Axle/Gears: Stock 10 bolt 2:73 gears 😭
Re: 305 question!
30 horsepower is a noticeable difference, anyway the problem is fixed and now I can light up both tires no problem, with 2:73 gears.
#14
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Car: 1992 camaro rs
Engine: 92 350ci carbed
Transmission: 700r
Axle/Gears: Stock 10 bolt 2:73 gears 😭
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Car: 87 Trans Am, 99 WS6, 16 Mustang GT
Engine: LB9, LS1
Transmission: 700R4, T56
Axle/Gears: 3.42 Posi, 4.10 Posi
Re: 305 question!
Either way, you probably have better gears than 2.73 in the IROC.
#16
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Car: 1992 camaro rs
Engine: 92 350ci carbed
Transmission: 700r
Axle/Gears: Stock 10 bolt 2:73 gears 😭
Re: 305 question!
It was running smooth just no power, no shaking or anything either. My rpo codes say 2:73 gears. Rpms at 65 mph is like 1600
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