fiestaturbo.com

[Excursion]

Anyone know these? I did a search but didn't turn up specific ratios

RS1800:
1st: 2.86:1
2nd: 1.91:1
3rd: 1.41:1
4th: 1.1:1
5th: 0.87:1
Final Drive: 3.82:1

Diesel
1st: ?
2nd: ?
3rd: ?
4th: ?
5th: ?
Final Drive: ?

[sjoyce666]

Taken from Projects website

Car 1st 2nd 3rd 4th 5th 6th rev diff
Fiesta RS1800 mk3 2.86 1.91 1.41 1.10 0.87 n/a 3.46 3.82
Fiesta 1.8 diesel 89-95 gearset B 3.58 1.93 1.28 0.95 0.76 n/a 3.62 3.82

1st: 3.58
2nd: 1.93
3rd: 1.28
4th: 0.95
5th: 0.76
Final Drive: 3.82

Sure we have covered this before Mark

Scott

[Excursion]

Taken from Projects website

Car 1st 2nd 3rd 4th 5th 6th rev diff
Fiesta RS1800 mk3 2.86 1.91 1.41 1.10 0.87 n/a 3.46 3.82
Fiesta 1.8 diesel 89-95 gearset B 3.58 1.93 1.28 0.95 0.76 n/a 3.62 3.82

1st: 3.58
2nd: 1.93
3rd: 1.28
4th: 0.95
5th: 0.76
Final Drive: 3.82

Sure we have covered this before Mark

Scott

Thanks, I requested RS1800 ratios before (you provided them along with a calculated top speed with the Diesel 'box), but not specific Diesel Ratios.

[sjoyce666]

Taken from Projects website

Car 1st 2nd 3rd 4th 5th 6th rev diff
Fiesta RS1800 mk3 2.86 1.91 1.41 1.10 0.87 n/a 3.46 3.82
Fiesta 1.8 diesel 89-95 gearset B 3.58 1.93 1.28 0.95 0.76 n/a 3.62 3.82

1st: 3.58
2nd: 1.93
3rd: 1.28
4th: 0.95
5th: 0.76
Final Drive: 3.82

Sure we have covered this before Mark

Scott

Thanks, I requested RS1800 ratios before (you provided them along with a calculated top speed with the Diesel 'box), but not specific Diesel Ratios.

Thought we had covered something with the gearboxes before

Are you still deciding what box to run on the 2.0 ?

Scott

[Excursion]

I've just bought a brand new Diesel box for a good price to keep as a spare, and I'm debating whether to use it. I know from experience the 1st gear is pretty useless even with the 1.8D.

Done a bit of analysis and to back up my experience it seems the Diesel box really needs the RS1800 1st gear.

[Excursion]

Thinking about this some more, the Diesel 5th in the RS1800 box would be better

[sjoyce666]

Thinking about this some more, the Diesel 5th in the RS1800 box would be better

That might be a easier solution

I like the diesel box for the economy aspect, 70mph at 3k instead of the RS1800 which does 70mph at 3.5k but would this make much difference in real life terms

The diesel seems to have a short first but I think the rest of the ratios could be lived with. Losing 9 mph low down should be offset by gaining 35mph with 3rd, 4th and 5th although I dont know what actual top speed you would hit with a 2.0 and the diesel box, theoretically it could go to 158mph but in practicallity you wouldnt see that with a standard engine

What box do you have fitted at the moment ?

I believe there were a couple of people over on the FSi forum that ran their 2.0's with a Diesel box

Scott

[Excursion]

I think I will take this route, I can swap 5th gear in 15 minutes.

My old box was that standard 1.6 Si gearbox. I don't understand Ford's choice, the car just wasn't fast but it would pull 4k at 80 on the motorway meaning low 30's to the gallon. I also don't understand why Ford marketed that car as 'Sports', I got burnt off by a middle aged woman in a Honda Jazz It was painfully slow.

The 1.6 should have been kept in the Ghia, the Si 1.8 105, XR2i 1.8 130 and the RS1800 should have been an RS2000.

[Excursion]

This graph looks much better.

RS1800 seems to have a stunted 5th to keep the 130 motor 'on cam', but I always thought the 130 1.8 was lacking in torque. I don't envisage the 2.0 will have any problem pulling an extra 770RPM cleanly going into 5th.

[sjoyce666]

This graph looks much better.

RS1800 seems to have a stunted 5th to keep the 130 motor 'on cam', but I always thought the 130 1.8 was lacking in torque. I don't envisage the 2.0 will have any problem pulling an extra 770RPM cleanly going into 5th.

Does look to be the best option

Luckily you have the ability to make such changes to the gearbox, I however do not !!

Scott

[Smo]

This could be what I need really. I have an XR2i 16v gearbox in mine at the moment, and the 5th is pathetic. To be fair, none of the gears are much good other than 1st and 2nd

My old Orion 1.8 16v box seemed far better. I don't know how the ratios of that compare to any of the Fiesta ones though. I'm sure the 5th was better