budget mods.
into the 15's or not |
|
yes, we can get into the 15's | [0 votes] |
forget it | [12 votes] |
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Posted
Local Hero
budget mods.
??????
aaghhhhhhhhh.
Posted
Settling In
I think he is trying to say run a smaller tyre with a bigger profile than the one you have on your bigger wheels…? the smaller wheel would give more acceleration but you would loose that with the large profile…kind of zeros it's self out…so would be pointless. and look odd.
Be interested to see what you do and how it works out wooders.
My new company - Carbon Motive - I am setting up as we speak so be nice….
www.carbonmotive.com
www.carbonmotive.com
Posted
Local Hero
Posted
Local Hero
Wider slick tyres on front
Narrower tyres on rear
Solid front and rear engine mounts
Remove bumpers
This lot should easily fit within your ?500 budget and will definitely reduce your 1/4 mile times. Since 1/4 mile is about traction and acceleration, you need to get more "bite" to the somewhat compromised FWD layout. Hence the slicks and solid mounts. The other factor is weight, you really need to take off all the excess weight you can, its a cheap way to better times.
There's a couple more mods you can do:
Lowering springs just on the front - increases castor radically
Dial in around 1? toe out on the front wheels
Set front camber to 0?
These changes will make the car tend to want to go in a straight line rather than round corners. Some mods for the 1/4 mile are in opposition to the mods you'd want for a trackday - for example suspension geometry changes. Also, if you take all the weight out the back of the car, you'll have slightly more tendency to lose grip and oversteer on corners.
Posted
Local Hero
hmm
weight is a big issue on sprints like they said get rid of any weighty things at the back of the car :wink:
Posted
Local Hero
My car is completely standard engine wise bar a K&N panel and a janspeed 4 branch, though this is mated to a standard system.
I have only ever done 1 run, at Pod, and got 16.5 secs.
My car is/was stripped with a pair of buckets, some home made vinyl door cards and home fitted carpets, no deadening.
To loose more weight, you'd want to remove all carpets, door cards etc, all seats bar the drivers. You may also want to keep an eye on Ebay etc for some Perspex windows and or fibreglass panels. Plus remove any tools, spare wheels etc!
I reckon you could quite easily get under 16 secs with minimal mods and emphasis on "Lightening".
One of the downfalls of the Mk1 is its gear shift, so make sure it is top notch for fast smooth shifting.
Try and find yourself a "9A" or "FD" gearbox, as they have lower ratios. Couple this with lower profile tyres/rims (I run 14's with 50 profile tyres) and it will accelerate real quick. Mine tops out at around 105 MPH, but at 15.8 ish secs, you will be crossing the line somewhere around 90MPH. I think I crossed in the low 80's. This does mean that you are changing more regularly, though the revs do not drop so low when you get the next gear, meaning that you are staying in the "Power band".
Some argue that all the power is low down, but my practically standard DX is pulling hard up to 7K at the moment! I'm waiting for it to go bang… :roll:
Good luck with your venture and keep us posted with any progress!
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My other hobby - www.pix-al.co.uk
Posted
Settling In
Buy a helmet (or goggles less weight) and take ALL your windows out to reduce drag, you might need some way to stop the wind swirling around inside the car but thats got to be the single, cheapest mod to reduce the time!
also tilt your seat back !
Posted
Newbie
Posted
Newbie
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Newbie
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Newbie
Posted
Local Hero
would be interesting to set parameters for the engine then alter tyres/weight etc on every run to see the gains or losses made.
rebuild in progress....
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