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E89 Tyres
- bob4333
- Member
- Posts: 334
- Joined: Fri Sep 19, 2014 7:42 am
- Location: Solihull, UK
E89 Tyres
I suppose the lid's going to come off the can of wriggly things anyway so here goes. It's an honest question.
Trial and error to see what suits you best is going to be the only way but the range seems to be between RFT pressures at the top end and about 34F / 36R at the bottom.
I started at RFT pressures but the car felt vague at speed. Tried the other extreme with 32F / 34R which didn't quite do it for me. I'm now on 34F / 36R, which is better but I reckon another 2 psi in the rear tyres will be about there.
This is on 19" 235 section fronts and 265 section rears. Wheels are 8.5J and 9.5J
Trial and error to see what suits you best is going to be the only way but the range seems to be between RFT pressures at the top end and about 34F / 36R at the bottom.
I started at RFT pressures but the car felt vague at speed. Tried the other extreme with 32F / 34R which didn't quite do it for me. I'm now on 34F / 36R, which is better but I reckon another 2 psi in the rear tyres will be about there.
This is on 19" 235 section fronts and 265 section rears. Wheels are 8.5J and 9.5J
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- Lifer
- Posts: 11073
- Joined: Tue Feb 10, 2015 10:27 pm
E89 Tyres
MPSS’s on my 19” 326 rims, superb tyres, very very supple and fantastic grip.
I run them at car factory pressures having played around with them. I found even 2psi noticible and for the worse either way, proabably more so too high than too low, the car seemed to feel twitchy, but I would think it’s down to which tyre you fit to find your ideal pressure, maybe start at factory pressure then take it from there.
I run them at car factory pressures having played around with them. I found even 2psi noticible and for the worse either way, proabably more so too high than too low, the car seemed to feel twitchy, but I would think it’s down to which tyre you fit to find your ideal pressure, maybe start at factory pressure then take it from there.
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29
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- Member
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- Location: Oxfordshire
E89 Tyres
Yes I agree, It also seems to depend on the tyre you are using I found on my previous set of Vredestein Ultrac Vorti The car felt better at a lower pressure than my present set of MS 4's which I run at 34 front 36 rear .
Panther Kallista 2.8
S Drive 3.0i E89 2009 Space Grey Coral red Int 18" 295 wheels
S Drive 3.0i E89 2009 Space Grey Coral red Int 18" 295 wheels
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E89 Tyres
Which tyres are you using?bob4333 wrote: ↑Sat Oct 28, 2017 8:15 am ... I started at RFT pressures but the car felt vague at speed. Tried the other extreme with 32F / 34R which didn't quite do it for me. I'm now on 34F / 36R, which is better but I reckon another 2 psi in the rear tyres will be about there.
This is on 19" 235 section fronts and 265 section rears. Wheels are 8.5J and 9.5J
Vidi, vici, veni
- bob4333
- Member
- Posts: 334
- Joined: Fri Sep 19, 2014 7:42 am
- Location: Solihull, UK
E89 Tyres
I'm about 1200 miles into the assimilation process. The front feels OK now and I agree a 2 psi change is noticeable.
In terms of ratio F/R the pressures I'm currently on (34F/36R) are are way out of wack with those of the original RFT's. It's an interesting exercise that doesn't appear to have a universal answer although opinions seem to run very strongly.
Definitely work in progress.
In terms of ratio F/R the pressures I'm currently on (34F/36R) are are way out of wack with those of the original RFT's. It's an interesting exercise that doesn't appear to have a universal answer although opinions seem to run very strongly.
Definitely work in progress.