Discussion
Newbie saying Hi,
I have recently bought my 1st Caterham, a 1600 crossflow with 5 speed and live axle and really enjoying the car's quirkyness. However:
I'm looking to replace the tyres, the current ones are old 185/70x13 having cracked sidewalls, my problem is I've jumped in and bought a new set of new 185/60x13 Yokohama A539's from a friend before doing my homework!
I am concerned with the sump clearance, if i fit these new tyres.
Sump clearance with 70 profiles is about 3.25 inches or 38cm, and with 60 profiles i think im going to have issues??
The road springs are non adjustable...standard original spax type.
My question is should i forget about fitting these 60 profiles or stay with a 70.
The car is for road use only no track days.
What size tyres are you guys using with the same setup?
Your thoughts please.
I have recently bought my 1st Caterham, a 1600 crossflow with 5 speed and live axle and really enjoying the car's quirkyness. However:
I'm looking to replace the tyres, the current ones are old 185/70x13 having cracked sidewalls, my problem is I've jumped in and bought a new set of new 185/60x13 Yokohama A539's from a friend before doing my homework!
I am concerned with the sump clearance, if i fit these new tyres.
Sump clearance with 70 profiles is about 3.25 inches or 38cm, and with 60 profiles i think im going to have issues??
The road springs are non adjustable...standard original spax type.
My question is should i forget about fitting these 60 profiles or stay with a 70.
The car is for road use only no track days.
What size tyres are you guys using with the same setup?
Your thoughts please.
SevenS3 said:
Newbie saying Hi,
Sump clearance with 70 profiles is about 3.25 inches or 38cm, and with 60 profiles i think im going to have issues??
3.25 inches is 8.2cm. I don't think dropping to a 60 profile will lower your sump height much.Sump clearance with 70 profiles is about 3.25 inches or 38cm, and with 60 profiles i think im going to have issues??
Mine is around 7.5cm running on 185/55/R13 tyres and the lowered floor bottoms out before the sump does.
I've only had the sump touch speed bumps in car parks like these (and even then it was very lightly - just go slow).
framerateuk said:
3.25 inches is 8.2cm. I don't think dropping to a 60 profile will lower your sump height much.
Mine is around 7.5cm running on 185/55/R13 tyres and the lowered floor bottoms out before the sump does.
I've only had the sump touch speed bumps in car parks like these (and even then it was very lightly - just go slow).
Thanks for the repliesMine is around 7.5cm running on 185/55/R13 tyres and the lowered floor bottoms out before the sump does.
I've only had the sump touch speed bumps in car parks like these (and even then it was very lightly - just go slow).
Sorry about my metric conversion! it should read 8.2cm
I too have experienced the same car park speed humps you kindly pictured, 'just' kissing the sump as i crept over them. hence my concern going to a 60 profile.
Fortunately not encountered any speed hump problems on the road....yet.
Perhaps i just need to Tread carefully!
Pity as those A539's would look the part compared with patterns available in the budget 70 market i've seen. Yes i know looks aren't everything
I've been told my front road springs are the early 'slightly banana shaped' low poundage type, (150 lbs??) and have upgraded to a set recommended at 250 lbs ?? sorry to be vague re poundage could be + or - slightly.
I hope to fit these asap then compare the ride height before dismissing the 60 profile tyres. Besides the spring upgrade will be beneficial in itself.
But in the meantime i need to source a suitable spring compressor. One step forward 2 steps back 'springs' to mind
I hope to fit these asap then compare the ride height before dismissing the 60 profile tyres. Besides the spring upgrade will be beneficial in itself.
But in the meantime i need to source a suitable spring compressor. One step forward 2 steps back 'springs' to mind
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