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Re: Bongo too low

Posted: Thu Jun 04, 2009 12:15 am
by stilldesperate
scanner wrote:According to http://www.miata.net/garage/tirecalc.html the difference is exactly one inch.

215/65-15" = 26" diameter
215/65-16" = 27" diameter
...... said it was from memory ! :lol:

Re: Bongo too low

Posted: Thu Jun 04, 2009 12:49 am
by scanner
stilldesperate wrote:
scanner wrote:According to http://www.miata.net/garage/tirecalc.html the difference is exactly one inch.

215/65-15" = 26" diameter
215/65-16" = 27" diameter
...... said it was from memory ! :lol:
Just thinking about it - it HAS to be exactly an inch as the tyre on both rim sizes is exactly the same width and profile so that is the same for both wheels.
The only difference is the diameter of the rim and that difference is 16-15 = 1.

QED.

Re: Bongo too low

Posted: Thu Jun 04, 2009 7:29 am
by stilldesperate
... never thought of that! =D>

SD

Re: Bongo too low

Posted: Thu Jun 04, 2009 9:21 am
by scanner
Cheapest way to put it right, is change the tyre profile to 60 when you replace them.

Re: Bongo too low

Posted: Thu Jun 04, 2009 9:52 am
by stilldesperate
Yup, but it'd need all four doing, and (I'm guessing) Shogun std size tyres (at /65 profile) will be cheaper than /60's?

It ain't a problem, the speedo is spot-on, ride is good, and the revs are a bit lower, helping mpg a little. :)

Just wondered about the extra height causing probs with the drive-shaft couplings (covered on the forum), and thinking of body-roll being slightly increased. :?

SD

Re: Bongo too low

Posted: Thu Jun 04, 2009 10:00 am
by scanner
stilldesperate wrote:Yup, but it'd need all four doing, and (I'm guessing) Shogun std size tyres (at /65 profile) will be cheaper than /60's?
Not necessarily.
It ain't a problem, the speedo is spot-on, ride is good, and the revs are a bit lower, helping mpg a little. :)
That can't be bad
Just wondered about the extra height causing probs with the drive-shaft couplings (covered on the forum), and thinking of body-roll being slightly increased. :?
The centre of the hub is still in the same place!
The "extra height" is in the tyre and if that isn't evenly distributed around the whole circumference, you have much bigger trouble than an extra inch of height.*

*Thinking again your Bongo is only half an inch higher than standard as only one half inch is between the hub and the road the other half inch is sitting on top of the tyre in thin air.

Re: Bongo too low

Posted: Thu Jun 04, 2009 10:21 am
by MatEmily
Another quick techie question,

How much extra height would normal springs give me?

Also she(the Bongo) seems to be alot lower at the back than the front, why is this, is it the weight, its fitted with side kitchen and rock n roll bed, can't be that heavy can it? Is there anything I can do to lift the rear slightly?

Re: Bongo too low

Posted: Thu Jun 04, 2009 10:47 am
by Majorbloodnock
northerntaff wrote:what about increaing the height...particularly at the back
That'd be cool, if you could leave the roof up and drive fast enough, when you brake hard you could do a roly poly!

Re: Bongo too low

Posted: Thu Jun 04, 2009 11:13 am
by scanner
MatEmily wrote:Another quick techie question,

How much extra height would normal springs give me?
That depends upon how much the lowering springs have lowered it and how "fresh" the normal springs are as all springs "sag" with age (don't we all :roll: )
Also she(the Bongo) seems to be alot lower at the back than the front, why is this, is it the weight, its fitted with side kitchen and rock n roll bed, can't be that heavy can it?
Yes it can be
Is there anything I can do to lift the rear slightly?
The best solution is supplementary air suspension.

http://www.igmaynard.co.uk/bongo/forum/ ... suspension

Re: Bongo too low

Posted: Thu Jun 04, 2009 1:13 pm
by MatEmily
Yeah they look pretty good. Suppose the first thing I need to do is find out how much shes been lowered, the air suspension kits won't work if its too low. Is there a way to measure this or is it guesswork?

Re: Bongo too low

Posted: Fri Jun 05, 2009 12:21 am
by northerntaff
Majorbloodnock wrote:
northerntaff wrote:what about increaing the height...particularly at the back
That'd be cool, if you could leave the roof up and drive fast enough, when you brake hard you could do a roly poly!
:lol: :lol: :lol: :lol: sick (that apparently means good these days!) :lol: :lol: :lol:

Re: Bongo too low

Posted: Thu Jun 11, 2009 7:56 pm
by Richard hird
Hi, i don't know if it's easy or not, but would you like to sell your springs. Regards Rich

Just picked up our very first Bongo! Slightly concerned about how low it is, previous Japanese owner has fitted lowering springs. This gives us only a few inches between exhaust and ground, also getting a knock from wheel area when going over some bumps. Any ideas what this may be?

How easy is it to refit normal springs, any ideas of cost? We could do with not having to worry every time we go over a bump.


Thanks ta

p.s How do I post a pic on here[/quote]