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well has anybody here done the 5 lug conversion? no. its defianetly worth it. something to do. Noone that has posted on thread has, but it has been done I know for a fact that at least one person has. Some of you may remember seeing a RWD Rotary MX-3 on ebay? That solid red one in and out with actu...

HP doesn't kill your gear is the torque.

The ones from a G series diesel gearbox will survive with 268ft/lb torque day in and day out with a full new car 100,000km warranty.

Looking at the factory FWD MTX manual you already have the tallest 5th gear available for that tranny. Your only real options is to swap out the whole tranny either to a F25M-R from some '95 european model with a BP-DE final drive ratio is 3.850:1. The '90-94 Protege or '90-91 Canadian 323 LX with t...

Unfortunately I don't have any Ford factory documentation for the Probe GT and no longer have contact with the cousin of the guy that was head of technical training for FWD drivetrains for Ford Canada that I could get info from. I believe that the PGT all had the 4.388 but specs published in an issu...

I had similar problems years ago. Actually I would check the catalytic converter. Sounds similar to the symtoms of a clogged cat. Would Idle and cruise fine but jerk at lower speed just off idle.

[quote="wytbishop Did you ever build this transmission? How did you acheive that final drive? Where did you source 1st and 2nd gear?[/quote] I built 2 of them, One with a 4 cyl bellhousing flange and the other with a V-6 bellhousing flange. The final drive ratio is a stock Mazda OE ratio not us...

"Frankenstein" G25M-R 3.409:1 final drive @3000 rpm 1st/3.666/16.93; 2nd/1.842/33.70; 3rd/1.31/47.38; 4th/1.03/65.55; 5th/0.795/91.28 MPH @4000 rpm 1st/3.666/22.58; 2nd/1.842/44.93; 3rd/1.31/63.18; 4th/1.03/87.40; 5th/0.795/121.71 MPH HOLY CRAP - 91.28 mph at 3k rpms?! :shock: :o based on...

91-94 Escort are almost identical chassis wise. Things like the rear seatbelt retractor mount in different places. Roof line is the obvious difference. You may have to adjust the angle of the rear kickouts and possible the the roof hoop. Since the Sparco 10 point kit in the early '90s was the only b...

Here's some numbers from a spreadsheet I created when I started working on my "Frankenstein" tranny project a few years ago just changed the rpm to the once you specified. All calculations were made with a tire diameter of 23.7" MX-3 4.388:1 final drive @3000 rpm 1st/3.307/14.58; 2nd/...

To swap the final drive, you need to change the pinion gear and the differential. The diff is easy, but I've been told that to take a gear of a shaft is a huge pain. The gear is a shrink fit to the shaft. Where the gear is heated slipped onto the shaft then the final machining steps or completed. I...

has anyone ever done a write up on the 5th gear swap into a mx-3 trans? I just picked up a 96 mx-3 gs and I hate that its geared so low for highway cruising. 5th really needs to be taller on it. at 120km/h I am doing about 4000 rpm, way to high for highway cruising. or should I just swap in a mx-6 ...

thank u for ur info, just what ineeded will be able to stat looking in to the turbo build soon If you are in the UK there is a guy over in Cork, Eire that has basically bolted the B6T turbo hardware to the B5 in his AZ-3 at Stock B6T boost levels he getting the same HP as a stock BPT. He was on the...

Wrong city....

Actually the assy plant is in in the Ujina District of Hiroshima, Japan

has anyone tryed to put a Throttle Body Spacer in if so did it do anything? and if so where did u find it or did u make it? I use a tapered T/B spacer for a years. I machine one from 20mm aluminum in the R&D shop for my old 8V 1.6 SOHC until the car was scrapped. It was actually slightly smalle...

The B5 and B6 engines are identical in every way except for the shorter stroke of the crank and the connecting rod length. The blocks and heads can have the same castings depending on the model year.The only other difference but won't make any different as far as bolt on accessories it that the '97 ...