cLonEd

Can some one give me some pros and cons for the 2.73 gearing in the 02 Z28. Also what would 02 run bone stock in the 1/4 with these gears?

[ January 24, 2002: Message edited by: cLonEd ]</p>

JohnR

iTrader: (1)

Here is something to think about. Upgrade your 2.73 rear gears and buy my 3.42 gears (only 4k miles) and really feel a big difference. You will realize a 25% increase in torque at the rear wheels. 3.42 is still a conservative ratio, you will continue to get good gas milage, and as a bonus you will be able to roast your tires on command. Increased gear ratio = instant fun!

$75 shipped UPS.
John

BYBYC5

I dont know 'bout that, i run 2.73s and i run 11.5s with 1.5-1.6 60ft (ET streets) those stock 2.73s kick *** with a stall, even better if you spray outta the hole, and they are thicker and stronger than 3 serries too. not trying to impend on a sale just stating facts.

99BlueZ28

There are a number of guys/gals running good numbers with the 273s. Coupled with the right converter, you can get great performance and not sacrifice gas mileage at the same time. <img src="gr_stretch.gif" border="0">

Ragtop 99

iTrader: (7)

pros: stronger and less likely to break; easier to launch car on the street; good gas mileage and quieter for long highway trips

cons: for a given stall, your converter feels loser; not as fast as 3.23s or higher gears and bigger dead spot after 1 - 2 upshift, but a high stall converter eliminates much of the difference; Power over 100 mph drops off due to upshift to 3rd.

cLonEd

cons: for a given stall, your converter feels loser; not as fast as 3.23s or higher gears and bigger dead spot after 1 - 2 upshift, but a high stall converter eliminates much of the difference; Power over 100 mph drops off due to upshift to 3rd.[/QB][/QUOTE]

ragtop im a lil new to the ls1, could you please explain a little more on the cons you listed? i know bout the gear thing but dont understand the rest. and thanx for the rest of the info fellas!

Ragtop 99

iTrader: (7)

looseness refers to the fact that you will use more rpms at part throttle with a higher stall converter. It can make the part throttle response seem weak because you use a little more throttle input for a given level of acceleration. It is perception, your car will still be fast at part throttle. look at Yank's FAQs for more info on looseness. www.converter.cc

Dead Spot: The transmission has a great first gear (3.06) but second gear is a huge drop (1.62) and that knocks the motor out of the powerband. The lower the rear gear, the longer it takes to recover to a speed where the motor is in the powerband. A high stall converter helps cure that by keeping the motor in higher rpms and creating torque multiplication for a short period after the upshift. Look on Yank's site at the dyno shop comparison graphs and note the percentage gain over stock.