Just did a deal on an MX5.

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The Black Duke

Original Poster:

1,642 posts

194 months

Wednesday 20th August 2008
quotequote all
Hi there I have just done a deal on a MK1 1.8iS in green with a hardtop, a new roof and a good interior for £500 plus my old ZXR400 bike. I think it was a good deal as I took the ZXR to settle a debt and have not ridden it in a year. Anyway I have £2k to spend over the next 8 months to try and get it up to standard. The paint has faded slightly and it needs a rust repair on the drivers side sill. Also, the car is a bit tappety for about 30 secs when starting from cold.

Taking all this into account, what else do you think I need to make this car a great weekend toy and a satisfactory daily driver. Performance mods would be good as it is very slow compared to my old cossie. (I am looking for about 180bhp ish.)

Munter

31,319 posts

242 months

Wednesday 20th August 2008
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To cure the tappet noise on start up. Oil change. 99% of the time it's old oil.

To get 180 BHP you have options of supercharger kits or turbo kits. If you think you'll want more eventually go for the turbo.

www.performance5.com and http://www.mx5mad.com/ should sort you out with performance parts.

The Black Duke

Original Poster:

1,642 posts

194 months

Wednesday 20th August 2008
quotequote all
Sounds good. Will do a quick serviceon the weekend. The car has about 130k miles. Is it okay for a supercharger then?

Munter

31,319 posts

242 months

Wednesday 20th August 2008
quotequote all
The Black Duke said:
Sounds good. Will do a quick serviceon the weekend. The car has about 130k miles. Is it okay for a supercharger then?
Well it'll not be as strong as one with 30k miles.... I'd say it's ok. People have had high miles from engines with superchargers on so putting it on with high miles should be ok I guess. I'd check cylinder compression and oil pressure etc to judge the health of the engine 1st.

MX-5 Lazza

7,952 posts

220 months

Wednesday 20th August 2008
quotequote all
I'd do a full service on it - i.e:
Cam-belt, tensioners & waterpump.
Change cam-cover gasket.
Change CAS o-ring.
Oil flush & change using good full synthetic.
Fit new thermostat & rad cap (genuine Mazda).
Coolant flush & change (back-flush the rad & block using a hose pipe while the water-pump is off).
Fuel filter change.
Air filter change.
Check brake master & slave cylinders for signs of leakage.
Check clutch master cylinder for signs of leakage.
Check brakes to make sure they don't stick (I'd take them off and grease the moving parts).

As long as you do all this and nothing bad shows up then forced induction shouldn't be a problem. I've seen cars with that much mileage boosted to 200bhp and then go on to do another 100k miles. Just make sure you service it regularly - the more power you add, the more often you service.

Have a read of this thread.

The Black Duke

Original Poster:

1,642 posts

194 months

Thursday 21st August 2008
quotequote all
MX-5 Lazza said:
I'd do a full service on it - i.e:
Cam-belt, tensioners & waterpump.
Change cam-cover gasket.
Change CAS o-ring.
Oil flush & change using good full synthetic.
Fit new thermostat & rad cap (genuine Mazda).
Coolant flush & change (back-flush the rad & block using a hose pipe while the water-pump is off).
Fuel filter change.
Air filter change.
Check brake master & slave cylinders for signs of leakage.
Check clutch master cylinder for signs of leakage.
Check brakes to make sure they don't stick (I'd take them off and grease the moving parts).

As long as you do all this and nothing bad shows up then forced induction shouldn't be a problem. I've seen cars with that much mileage boosted to 200bhp and then go on to do another 100k miles. Just make sure you service it regularly - the more power you add, the more often you service.

Have a read of this thread.
Yeah I know what you mean about the servicing I used to do a service on the cossie every 2k miles or so.

Thanks for the advice and the link.

J.P.W.

122 posts

218 months

Thursday 21st August 2008
quotequote all
£2k to spend bringing it up to good condition? No way you'll need all that. Spend the money on petrol, tyres and ferry tickets and enjoy the thing!

The Black Duke

Original Poster:

1,642 posts

194 months

Thursday 21st August 2008
quotequote all
J.P.W. said:
£2k to spend bringing it up to good condition? No way you'll need all that. Spend the money on petrol, tyres and ferry tickets and enjoy the thing!
That makes a lot of sense. I may just do that. I really want more power but eh! The fuel costs will go through the roof. May just keep it standard and just freshen it up a bit.

freerange7

205 posts

189 months

Thursday 21st August 2008
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Yes, replace the oil, 5w/30 fully synthetic will do a great job and will free up another 5 to 8hp over semi synthetic.

*Raz*

195 posts

189 months

Wednesday 27th August 2008
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nice one

you'll love it! smile

The Black Duke

Original Poster:

1,642 posts

194 months

Wednesday 27th August 2008
quotequote all
I think I am going to change the suspension as it is a little bit tired. Also all my other cars have been polybushed, is this a good idea on the 5?

skinny

5,269 posts

236 months

Wednesday 27th August 2008
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if they're knackered then yup, definitely. beware tho, the 5 has a lot more bushes than a lot of other cars...!

mcBontempi

108 posts

189 months

Wednesday 27th August 2008
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an mx5 with knackered bushes emulates an mgf quite well i find.
anyone know how many bushes exactly?