maybe2fast Posted November 14, 2004 Report Share Posted November 14, 2004 The Reatta has the 2.97 ratio, in the manual it says its for faster acceleration is this true. I thought the higher the number the snappier the ratio. What do you guys think? Quote Link to comment Share on other sites More sharing options...
GutlessSupreme Posted November 14, 2004 Report Share Posted November 14, 2004 higher # = faster + worse gas mileage lower # = opposite Quote Link to comment Share on other sites More sharing options...
maybe2fast Posted November 14, 2004 Author Report Share Posted November 14, 2004 the buick manual said 2.97 was installed for quicker acceleration its a 4t60, just like my 4t60 only difference is 3.33 in the Lumina and 2.97 in the Buick. Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted November 14, 2004 Report Share Posted November 14, 2004 is the Reatta alot lighter than the Lumina? that could be why. Quote Link to comment Share on other sites More sharing options...
maybe2fast Posted November 14, 2004 Author Report Share Posted November 14, 2004 lol the Reatta is like 40 or 50lbs more in curb weight than the Lumina Quote Link to comment Share on other sites More sharing options...
dbtk2 Posted November 14, 2004 Report Share Posted November 14, 2004 Lower number equals slower acceleration, but lower revs on the freeway (higher MPG) and higher theoretical top speed. Higher numbers equals quicker acceleration but more revs on the freeway and a lower theoretical top speed. Seeing that going from 2.97 to 3.33 gearing will only give you about a tenth in the quarter, I would rather have the 2.97's because gas mileage would be so much better. Just my opinion though. My Calais has 3.91 gearing... Nothing like turning 3200rpm down the freeway in 5th. Shawn Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted November 14, 2004 Report Share Posted November 14, 2004 My Calais has 3.91 gearing... Nothing like turning 3200rpm down the freeway in 5th. Shawn i have 3.85 FDR in my GTS and 3.61 FDR in my Cutty. then again you have to take into consideration overall gear ratio of course. Quote Link to comment Share on other sites More sharing options...
maybe2fast Posted November 14, 2004 Author Report Share Posted November 14, 2004 really it would work out to one tenth difference! screw it lol thanks fellaz. I was just conserned that it was a big difference and I was missing out on alot of potental. Quote Link to comment Share on other sites More sharing options...
WhiteOut Posted November 14, 2004 Report Share Posted November 14, 2004 is the Reatta alot lighter than the Lumina? that could be why. Reatta's are chubby since they're built on the same platform (a shortened version) as the Toronado, Riviera, Eldorado and Seville. I think the curb weight on Reatta's was around 3400-3500 lbs. The larger cars on the platform weighed about the same...go figure. Quote Link to comment Share on other sites More sharing options...
93CutlassSupreme Posted November 14, 2004 Report Share Posted November 14, 2004 i ordered a 3.73 ratio on my Colorado because i want acceleration. a higher # gear wasn't offered, if it was i would have bought it Quote Link to comment Share on other sites More sharing options...
WhiteOut Posted November 15, 2004 Report Share Posted November 15, 2004 A 3.73 is plenty high enough, especially with gasoline at $2/gal. Besides, isn't 3.73 the rear end ratio and not the final drive? Quote Link to comment Share on other sites More sharing options...
93CutlassSupreme Posted November 15, 2004 Report Share Posted November 15, 2004 A 3.73 is plenty high enough, especially with gasoline at $2/gal. Besides, isn't 3.73 the rear end ratio and not the final drive? rear axle ratio. i thought we were talking about axle ratios. did i miss something? i am running slow today Quote Link to comment Share on other sites More sharing options...
maybe2fast Posted November 15, 2004 Author Report Share Posted November 15, 2004 we are talking about the trans final drive ratio, your truck will have a final drive ratio and a rear end ratio. FWD only have the FDR. Quote Link to comment Share on other sites More sharing options...
93CutlassSupreme Posted November 15, 2004 Report Share Posted November 15, 2004 we are talking about the trans final drive ratio, your truck will have a final drive ratio and a rear end ratio. FWD only have the FDR. because the trans and axle are the same unit? Quote Link to comment Share on other sites More sharing options...
maybe2fast Posted November 15, 2004 Author Report Share Posted November 15, 2004 for FWD yes for RWD there is a final drive ratio and a rear axle ratio Quote Link to comment Share on other sites More sharing options...
cutlassdude96 Posted November 15, 2004 Report Share Posted November 15, 2004 2.97 is what all early 3800's got Quote Link to comment Share on other sites More sharing options...
maybe2fast Posted November 15, 2004 Author Report Share Posted November 15, 2004 well now I don't feel special at all :? Quote Link to comment Share on other sites More sharing options...
Canada Posted November 15, 2004 Report Share Posted November 15, 2004 Some RPO code help..... F79 = 2.97 FR2 = 2.93 GT7 = 3.33 Quote Link to comment Share on other sites More sharing options...
cutlassdude96 Posted November 15, 2004 Report Share Posted November 15, 2004 Some RPO code help..... F79 = 2.97 FR2 = 2.93 GT7 = 3.33 GX3 is 3.33 for me Quote Link to comment Share on other sites More sharing options...
jeremy Posted November 15, 2004 Report Share Posted November 15, 2004 A 3.73 is plenty high enough, especially with gasoline at $2/gal. Besides, isn't 3.73 the rear end ratio and not the final drive? my fiero was a 4:10 4spd.....it was nice pickup wise, but it rev'd high on the highway... Quote Link to comment Share on other sites More sharing options...
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