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Forum nameAuto Trans- A604
Topic subjectfinal drive mod = dissapointment
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=33&topic_id=4116
4116, final drive mod = dissapointment
Posted by bloodyangel1, Dec-31-69 06:00 PM
well after reading all the articles about this, and everyones opinion on it, i finally decided to do this mod, and did it over the weekend, and man am i dissapointed. i mean i read everyone saying things like they can spin tire from a dead stop, and going from 1-2, 2-3 and whatever, but i dont spin tire at all, not any gear, not from a dead stop, nothing, granted, i didnt really much low end, its all up top, and i do have an exhaust leak at the header/downpipe area, but really for real i hardly noticed any difference at all, at most it maybe gets to 20 quicker, but thats it.

it still shifts first at 40, then 2nd at 60 which is sad i think, it should be higher...i mean i did everything the article said to do, made sure my gears were 47/49, and the ones i bought were 46/50, and put a tranny cooler in as well, but it just seems like it didnt do anything really for real...has anyone else had this same problem, or has most people actually felt a difference, and can spin tire or keep up with manuals as some claim?
4117, RE: final drive mod = dissapointment
Posted by R34Eclipse, Dec-31-69 06:00 PM
my best investment was the auto to manual conversion =) only way your gonna get a good feeling about the car.
4118, RE: final drive mod = dissapointment
Posted by Malenko, Dec-31-69 06:00 PM
Originally posted by R34Eclipse
my best investment was the auto to manual conversion =) only way your gonna get a good feeling about the car.


I dunno, I got this pretty metal snail on my exhuast manifold that gives me a good feeling about my car.......
4119, RE: final drive mod = dissapointment
Posted by thedawg, Dec-31-69 06:00 PM
No matter what gears you have, you still have a 140hp engine coupled to a ~30% loss transmission from a minivan, in a car that weighs 2900lbs.

Anyone spinning tires with an automatic either has a turbo or is driving on ice covered by a large oil spill.

The specs for the final drive mod improvement were posted years ago, and my pics are still hosted.
http://forums.2gnt.com/dcboard.php?az=show_topic&forum=33&topic_id=2361&mesg_id=2361&listing_type=search

My results were: 0.57 seconds quicker 1/8 mile, 2mph faster.
This would probably translate to a 1+ second improvement and 4-5mph gain in a 1/4 mile. Hardly life-changing.
4120, RE: final drive mod = dissapointment
Posted by Keith2172, Dec-31-69 06:00 PM
.5 seconds is definately worth $100 and a half day of work. It's still a slow turd, but a half second faster slow turd!

Final Drive mod and TQ red. mod gained me about .8 seconds at the track (shifting vs. leaving it in drive) That's significant enough.

Just don't go expecting improvments to come in leaps and bounds on these cars, it doesn't work that way.
4124, RE: final drive mod = dissapointment
Posted by mcgyvr, Dec-31-69 06:00 PM
.5 seconds in the 1/8th mile is a HUGE difference...
1 second in the 1/4 mile is a HUGE difference

I could spend 1000 bucks in bolt ons and never see that much difference..

moral to this story is the final drive mod IS easily worth the 100 bucks you spent..
4127, RE: final drive mod = dissapointment
Posted by bloodyangel1, Dec-31-69 06:00 PM
well your right, that would be worth it, if it actually felt like i gained that much, but it doesnt. it seems like i have no high-end power now, like once i hit 50, it takes forever for the car to go anywhere, and i just hit 60 at the end of 2nd gear, someone posted his speed difference on here after doing FD and said his 2nd gear got him to 72, how in the hell is he getting 12 mph more than me after doing this and im not???
4128, RE: final drive mod = dissapointment
Posted by Keith2172, Dec-31-69 06:00 PM
What other transmission mods do you have and what size tires are you running?
4133, RE: final drive mod = dissapointment
Posted by bloodyangel1, Dec-31-69 06:00 PM
just final drive with a tranny cooler. and i run 215/45r17 sonars, on nippon lite-star rims, they weight 13-14lbs each
4139, RE: final drive mod = dissapointment
Posted by thedawg, Dec-31-69 06:00 PM
Originally posted by bloodyangel1
someone posted his speed difference on here after doing FD and said his 2nd gear got him to 72, how in the hell is he getting 12 mph more than me after doing this and im not???

If you're talking about me, it's because my car was turbo'ed at 5psi for both the before & after. It says so in the link I posted above- "I didn't feel it was fair to get 1/4 mile times since the car is turboed. Since it doesn't spool in 1/8 mile, these results should be repeatable by a modified nonturbo."

My turbo just barely started to spool at the end of the 1/8th mile, which is why I did the runs at an 1/8 mile track. It behaves a lot like a basic bolt-on MTX until the very end of the track where I pick up a couple mph.

Here is a video of my car in the same configuration running a 1/4 mile against a modded but non-turbo 2GNT MTX. You can see I don't pull on him at all until after the 1/8 mile & 3rd gear:

http://www.imagestation.com/4177721/4232743957

At any rate the moral of this story is put in a MTX or go turbo if you want to go faster.

A 1 sec difference may be a "huge improvement" but a 16 second car instead of a 17 second car is still slow.
4142, RE: final drive mod = dissapointment
Posted by Keith2172, Dec-31-69 06:00 PM
Touche, 16 sec is still dreadfully slow.

BTW, you didn't just pull on that MTX, you gained several car lengths on him, makes me want to go turbo now, and that was 5psi?
4158, RE: final drive mod = dissapointment
Posted by bloodyangel1, Dec-31-69 06:00 PM
Originally posted by thedawg
If you're talking about me


it could possibly be you, but didnt you say 1st gear got you to 40, then 2nd got you to 72? was it you who said that?
4159, RE: final drive mod = dissapointment
Posted by 97EclipseGrl, Dec-31-69 06:00 PM
Oh Dear...
:rolleyes I have SO many reasons for doing the mtx swap...
Fonzie sez:
"WOOOOO!!!!" :love
4160, RE: final drive mod = dissapointment
Posted by bloodyangel1, Dec-31-69 06:00 PM
Originally posted by 97EclipseGrl
Oh Dear... :rolleyes I have SO many reasons for doing the mtx swap... Fonzie sez: "WOOOOO!!!!" :love


well go ahead and buy me a manual, and when you come up here to visit me, we can install it ourselves since you already know what you are doing, but i can still take you now being manual -lol-

and what did fonzie say? i dont understand lemur
4161, RE: final drive mod = dissapointment
Posted by InFiNiT3, Dec-31-69 06:00 PM
MTX = BAHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

You'd get much much more respect whoopin someones ass in an ATX.
:) see the for sale forums :)


mods include but not limited to:
engine: AEM cai , pp head / TB / intake runners, Chikira 4-2-1 header , custom 2.5" exhast / pacesetter high flow cat/flowmaster2 muff,1mm over sized SS valves,PT valvetrain, AEM cam gears/pully set, prothane motormounts,440 injectors , ground kit.
Trans: Custom ATX (1 of a kind) poly-graphite steels , kevlar clutches , final drive , shift kit,3500 stall TC, Tourqe Wonder trans chip ($120.00 2gnt price only!!email for order info)
4163, RE: final drive mod = dissapointment
Posted by bloodyangel1, Dec-31-69 06:00 PM
Originally posted by InFiNiT3
MTX = BAHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH You'd get much much more respect whoopin someones ass in an ATX. :) see the for sale forums :)


already did, and this was way before i had as much as i have done to my car now. i beat some guy in this car club im in, he has a 99 or 00 cougar with a 2.5 v6 manual, and i beat him by like a car, and im an automatic, he felt dumb as hell after that, and to this day says im the only guy who has beat him, so yeah i felt good about that one ^_^
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