Fiesta-Si.com https://www.fiesta-si.com/forums/ |
|
Fiesta Mk3 Si fitted with 2.0 Silvertop which ib5 gearbox https://www.fiesta-si.com/forums/viewtopic.php?f=13&t=24928 |
Page 1 of 1 |
Author: | andrewow47 [ Tue Feb 05, 2013 12:07 am ] |
Post subject: | Fiesta Mk3 Si fitted with 2.0 Silvertop which ib5 gearbox |
I am putting a 2.0 silvertop into a mk3 Fiesta Si, I want to use an ib5 box but don't know which one to go for. My first thought was an Escort RS Turbo series 1 or 2 to get an LSD, but apparently the ratios may be too tall. There seem to be quite a choice of boxes as follows: 1. The standard 1.6 already fitted to the Fiesta 2. 1.8 Fiesta Diesel 3. Ka 5. Puma racing (probably too expensive) No doubt a number of others I'm not aware of. I want some close ratios for good acceleration plus a tall 5th gear for more relaxed motorway driving. I know that ideally the LS diff should be fitted to whichever box is used, and I could get one of these from an RS Turbo box, I don't know if the S1 or S2 would be the more suitable LSD donor? In any event I don't feel particularly confident in trying to fit the diff as I have never stripped a gearbox before! All advice greatly appreciated! |
Author: | meilack [ Tue Feb 05, 2013 9:25 am ] |
Post subject: | Re: Fiesta Mk3 Si fitted with 2.0 Silvertop which ib5 gearbo |
the standard box, diesel box and RST boxes are BC boxes not IB5 S2 ERST Box with LSD would do you good! |
Author: | onslack [ Tue Feb 05, 2013 4:13 pm ] |
Post subject: | Re: Fiesta Mk3 Si fitted with 2.0 Silvertop which ib5 gearbo |
if you can get a Erst box id go for that ! i found the ratio's spot on when i had one in my 2.0'd mk2 fez ![]() |
Author: | - Danny Boy - [ Tue Feb 05, 2013 5:43 pm ] |
Post subject: | Re: Fiesta Mk3 Si fitted with 2.0 Silvertop which ib5 gearbo |
Standard gearbox will be fairly quick on acceleration, sits at about 3-3.5k at 70mph, cant remember exactly, and it'll top out at about 130mph sat nav speed. For a more relaxed approach to motorway driving, a diesel box would probably be better as they are meant to have a really long 5th so it'll keep the revs down. |
Author: | elPaulio [ Tue Feb 05, 2013 6:56 pm ] |
Post subject: | Re: Fiesta Mk3 Si fitted with 2.0 Silvertop which ib5 gearbo |
I agree with Danny, the 1.6 box is pretty fast up to about 110 but is really noisy cruising. If you sit at 80 it's closer to 4k ![]() Not sure how good diesel box is at acceleration but people have said it tops out off the clock so good for top speed and comfortable cruising. I want to do a hybrid with the 1.6 box and diesel 5th gear. Just need to find a gear puller for uner a hundred quid first to save having to get the blow torch out and heating gears. Paul |
Author: | meilack [ Wed Feb 06, 2013 10:58 am ] |
Post subject: | Re: Fiesta Mk3 Si fitted with 2.0 Silvertop which ib5 gearbo |
yep - 80 is 4000rpm as confirmed by Si Turbo ![]() diesel box isn't bad on acceleration -happypaul will confirm this! but it is much better for cruising ![]() |
Author: | fiestasiphil [ Thu Mar 07, 2013 12:43 pm ] |
Post subject: | Re: Fiesta Mk3 Si fitted with 2.0 Silvertop which ib5 gearbo |
2.5k at 70 with a erst lsd box, I got 44mpg on a long run once as well, perfect box imo ![]() |
Page 1 of 1 | All times are UTC [ DST ] |
Powered by phpBB® Forum Software © phpBB Group https://www.phpbb.com/ |