Now NA SVT, how will a car drive on a day to day bases with 4:30? Was reading and about to do all the thing u guys recommend.. But I'm wondering how the 4:30 will ride day to day..
Now NA SVT, how will a car drive on a day to day bases with 4:30? Was reading and about to do all the thing u guys recommend.. But I'm wondering how the 4:30 will ride day to day..
4.30s in a Marauder result in the same final gear ratio as 4.10s in a Mustang. The taller tire of the Marauder kills the final gear ratio which is why the 4.30s are needed...There's a reason that no 4.10 geared, n/a marauder has gone 12s in the quarter mile.
In a DD they are great, the MPG won't suffer and driveability will increase.
Personally I wouldn't put 4.30's in a daily driver. There are many who have done this and have regretted it and replaced the 4.30's with 4.10's. You will lose at least 4 - 5mpg, your top end speed will be reduced and you have a better chance of the transmission tailshaft / driveshaft failing because the driveshaft will reach it's critical speed sooner.
IMHO.... 4.10's are a better choice for a DD. In fact the Marauder was supposed to come with 4.10's until the bean counters needed an extra 1 - 2mpg. With 4.10's you will lose 1 -2 mpg and you RPMs at speed will increase by about 200. You'll also need a "tune" to account for the change in gears.
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I like to take the car out for a long drive now and then, I think I'll stick with the 4.10's. With my exhaust setup, another 150-200 RPM's will make it drone even more at highway speeds.
2003 MERCURY MARAUDER 300A
Build Date
5/31/02
Sequence#
#363 of 7839 Black Marauders
Dyno tested power
450 RWHP & 405 RWTQ on 93 octane
Best 1/4 mile time to date
12.456@109mph
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My mustang with 4.10s gets over 20mpg (auto trans). A marauder with 4.30s will cruise at the same rpm as my car.
Do a search on 4.30s, a member here has them and posted how much he likes them.
Last edited by na svt; 04-15-2012 at 06:28 PM.
Yea I agree with you'll there isnt a change at all from the Stock to 3.73s because I thought there would be a difference in my 1/8 time and there wasnt i just noticed a difference in my hole shot a little bit but hey I know for a fact im going to 4.10s because I see so many of you guys on here are flattered with your 4.10s.
Take a look at this hread:
http://www.mercurymarauder.net/forum...ght=4.30+gears
where can i get 4.30's, and is the new design better than the original??
What would the gear ratio be with 4.10s on 235s. I use that size for winter, really no difference jus a lot easier to break loose.
392 Challenger YELLOW JACKET
12.28@114 stock
Nitrous with a dyno tune is the best bang for your buck. I know for a fact.
Nitrous, a TURBO, 4.10's, are like a hot blonde with a STD, you really want to hit it but you are just afraid of the consequences.
Best e/t 12.7 @108mph with a 1.9 60' on eagle f1.
best on e/t streets 12.40 @108 with a 1.6 60'<---- finally NOT faster then justbob.
4.10s with a 235/50-18 tires is not an effective 4.56 gear. lol
245 dia ÷ 235 dia
(28.6 ÷ 27.3) = 1.047
1.047 x 4.10 = 4.2927 effective rear gear ratio with 4.10s and a 235/50-18 tire
I run 265/50-18 street tire which is 28.4", my 255/50-16 drag radial is 26.0"
28.4 ÷ 26.0 = 1.09
1.09 x 4.10 = 4.469 or 4.47
2004 Silver Birch 300B
Build date:9/29/2003, Adopted on 12/02/05
Exhaust by Greg
13.630 @ 100.49 mph (11/21/10)
2015 Ford Focus SE Sport FWD
2013 Lincoln MKS EcoBoost AWD (377whp/423tq).
2010 Ford Fusion Sport FWD
1989.5 Ford Mustang 5.0 LXsport
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