4SPD or 5SPD whats best

BILLET_GEM · tinkerer Joined: 12 Jun 2003 Posts: 148

i plan on or am in the process of a 1600 bored 60 thou ported polished head pistons all the shit what i want to know is what should i do the car as a 4spd or a 5 now ive seen a fair few 4spd drag gems what do u people think

BOB the chicken · tinkerer Joined: 09 Apr 2003 Posts: 287

i thikn your car is a little bit from being a drag gem...but if your after economy and shit go the 5 speed, its better in every way

Gene FJ20DET · Posted: Mon Jun 16, 2003 10:47 am Post subject: Re: 4SPD or 5SPD whats best

im with the Box
go 5 speed
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MR_GEMI · Posted: Mon Jun 16, 2003 11:12 am Post subject: Re: 4SPD or 5SPD whats best

5
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BILLET_GEM · tinkerer Joined: 12 Jun 2003 Posts: 148

any reason they go 4s? its fully worked the engine aswell about as much as a n/a 1.6 can go its also goin on nos

Gene FJ20DET · Posted: Mon Jun 16, 2003 12:15 pm Post subject: Re: 4SPD or 5SPD whats best

im sure it can go further
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BILLET_GEM · tinkerer Joined: 12 Jun 2003 Posts: 148

prehaps but its pretty farken good

TGemi1 · tinkerer Joined: 23 Mar 2003 Posts: 456

from first to forth gear , both boxes r exactly the same ratios, the 5th gear just works as a overdrive gear i suppose, so having a 5spd would be more benifical any, if your dragging just leave it in 4th gear.

chris...

HighTeK · tinkerer Joined: 04 Jul 2002 Posts: 205

Hey,

Some people on this site think they know boats. hehe

I have driven Gemini's with both 4 Speeds and 5 speeds, and this is what I have worked out:

5 Speed 1ST = 0-15
2ND = 15-30
3RD = 30-60
4TH = 60-80
5TH = 80+

4 Speed 1ST = 0-20
2ND = 20-40
3RD = 40-60
4TH = 60+

Yes The 4 speed is faster off the blocks, not the 5 speed
they both have the same top speed. The 5 speed revs out to quik for worked motors.

Plus the fact that the sinkro in second allways wares out in the 5 speeds, making it a bitch to change into 2ND (slower again)

To combat this problem (if anyone else has the problem) Drop the gearbox oil and put Dextron 3 in it. Makes gear changes alot easier, I have been running a 5 speed with a fuct 2ND sinkro for a year with no probs.

I prefer a 5 Speeds thou. More gears to change, tats all.
4 speeds r quiker.

cheers.

Gene FJ20DET · Posted: Mon Jun 16, 2003 4:15 pm Post subject: Re: 4SPD or 5SPD whats best

ratios are differnt. but the 4 speed has a lower top speed to a 5 speed box
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HighTeK · tinkerer Joined: 04 Jul 2002 Posts: 205

I thourt that might be the case, But i have been told they r the same, as for the raios, dats striaght out of the book.

cheers.

Thirsty · tinkerer Joined: 26 May 2002 Posts: 215

Mate have a search on the site using ratios...I have seen a post that is very informative with the ratios from 4 and 5 speed boxes from petrol and diesel boxes...Good luck..Thirsty

GeminiCoupe · tinkerer Joined: 10 Jan 2003 Posts: 172

A reason why drag geminis might use 4speed boxes as opposed to 5speeds? if youve got power, you will at some stage smash a box regardless of what it is. 4speeds are cheaper

Nick-

BILLET_GEM · tinkerer Joined: 12 Jun 2003 Posts: 148

thanx guys lot of help ill stick with a 4spd