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Panda Racing No.2

375K views 1.7K replies 206 participants last post by  Rasc  
#1 ·
Here's my previous project:

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Panda Racing No.1

A year after selling it, and owning 5 cars in the interim I decided another MX5 would be a suitable replacement car to get me to the train station and back. Last week I therefore found myself schlepping around the M25 to Essex in the rain to look at a sorry looking 1.8 incorrectly advertised as a V-Spec that I hoped was actually an S-Special.

I collected it and after inflating the tyres (the rears were on 11 and 13psi) I set off home. It doesn't have the 112mph limiter my 1.6 had. It runs out of legs at 122mph though (speedo and TomTom in agreement at that part of the dial). It's woefully underpowered and it feels quite baggy compared to my last one. Remind me, what is it I like about these cars again?
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I'd say the 1.8 engine isn't as sweet as the 1.6. Where the 1.6 enjoys being wrung out, the 1.8 prefers to make progress on the slightly higher torque it produces and you gain nothing from screwing the last 500rpm out of it. I'm hoping the more manly 1.8 drivetrain will last better on track than my 1.6 did though as that ate clutches, brakes etc. for fun.

My journey home averaged 29 MPG. Pretty appalling for a small car of this nature, especially when my M3 would have made circa 33 for the same journey.

Anyway, Sunday I had time to give it a quick going over and evaluate what needs to be done to it. I nearly always forget to take photos of what cars are like when I get them so tend to only have the 'after' pics. So here it is on the drive in the state it arrived:

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Paint is very tired, car has ingrained dirt and hasn't been cleaned properly in years. It will look a million times better just having some TLC and a proper clean, sorting out the number plate bracket that's fitted upside down and a few areas of the plastic front and rear bumpers that have crazed paint will get re-painted. Good points are that it appears to have no rust on the bodywork (which is why I bought it) and the hood is new and watertight.

Wheels belong to the previous owner so they'll be going back to him. Will be good to lose the oversized budget 205/50/15 tyres that are blunting the car's responses.

Popping the bonnet revealed years of dirt and grime.

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The whole car seems to have been neglected so its no surprise to see a filthy engine bay. Washer fluid was empty, oil was on minimum and coolant was below minimum. At least it's mainly standard without lots of shiny tat or an awful induction kit or anything. Only areas of note are a broken dipstick handle (the history for the car shows this as an advisory on its first MOT in the country) and a broken clip for the bonnet stay, meaning over time the bonnet stay has been sat on the radiator top-hose, making a small but noticeable indentation in it. I'll get a new clip and replace the hose.

Poking around it in the daylight it's in quite a strange state. It's almost as if it has just arrived at the docks. It's got all the Japanese licencing info in the windscreen still, there are random JDM stickers here and there and the interior is filthy, and unbelievably still has Japanese parking tickets and other odds and ends in it.

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Here's the important sticker saying it's an S-Spec:

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...and the inside of the boot lid holds clues to a potential previous life as a trackday/club racer/road warrior:

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Anyway, as it started raining I pulled it inside to give the inside a clean and sort out:

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Sticking my head in the footwell to hoover it out I found this:

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An original JDM flare.

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I can't decide whether to set it off for a bit of fun or to sell it. Are these rare and would there be a market for it?

Mazdaspeed gearknob fitted. Not to my taste but possibly worth a few quid to someone? Will be in the For Sale section soon.

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The Nardi Torino that's fitted I do like. I'm tempted to keep it 'in stock', but may well sell that on too?:

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This is the funniest thing in the entire car:

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A 'carbon' ashtray.
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Apparently it's the one Takuma Sato had fitted to his F1 car so he could have a crafty bifta during qualifying. Will be going in the For Sale section too.

A bit of CSI digging about while cleaning the inside gave further clues to what the boot stickers had hinted at. One of the stickers was the Safety21 logo. Digging about I found the rear deck fuel tank cover had been tin-snipped and beneath them, covered up very well with metallic tape was the evidence of where the rear stays of a rollbar had been mounted.

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Then looking under the floor, holes where the main hoop had mounted were visible, but there were none where the front legs would go on a 6-point cage. Therefore, I'd assume in Japan it had a Safety21 4 point rollbar.

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Anyway, I gave the interior a thorough clean, removed all the unnecessary stickers. Pulled the Nardi off and replaced it with my Momo. I also climbed underneath and had a look at the suspension. The rear Mazdaspeed coilovers were backed off to their softest setting and that was that. It's now much more pleasant inside and with the back a few clicks softer it drives better too.

So far I've bought some proper chairs for it and some scaffolding to protect my head in case it falls over. Today I'm going to buy some coilovers and some wheels. It'll then need a front lip, an alignment, some brakes, harnesses, a hard-top, some paint and a thorough stripping / lighten-ing. Hopefully will get it on track by November. Will be doing it as a rolling project though, commuting sideways in it everyday and seeing what it's like to live with as a daily drive.
 
#258 ·
Update on PAS removal: Need to sometimes use both hands to manoeuvre at slow speed now. Slightly more difficult to balance my morning cuppa on the way to the train station.

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Feedback is better though, weight is actually really good once moving and it might be psychological but with the PAS and AC completely removed and parasitic losses being reduced the engine definitely feels keener to rev and a bit more eager. I also had concerns over catching a slide, or actually getting the lock off again quickly afterwards. A quick dabble around a roundabout this morning allayed my fears. Lock wound itself on and off pretty much by itself as usual with just a little guidance. I guess the correct castor is key.

So - all good. Other than the potential to spill my tea.
 
#263 ·
Looking good mate. So much neater than mine. I'm gonna be embarrassed when If our two cars get together. Mines a bit of a ten Pinter.

Quick question: what diamiter is your exhaust?

Btw. We're out at oulton on the 13 of April if you fancy?
 
#264 ·
Exhaust is 1.85". It's too small for my car really and probably hurting BHP up the rev range. I didn't realise the bore when I was buying it though.

Ideally it needs to be on a nice NA 1.6 and I could do with a 2.25" one. I love it but guess I'll have to sell it at some point and probably have to have one made as I just don't think I'll get what I want off the shelf.

I've bought a Racing Beat 4-2-1 manifold to replace the Mazdaspeed 4-2-1 that's starting the blow. Once that's on I'll sort an exhaust to match it.

Oulton sounds great, but that's my birthday and already have plans. I'm trying to get onto Rockingham 17th March for ?135 if you fancy that?
 
#265 ·
Interesting. Going to get a lightweight straight through (ish) system made up for mine. Trying to work out what the smallest bore is that i can get away with.

Shame about Oulton. I'd be up for rockingham too but the deadline is a bit tight, All the wishbones are off mine at the mo and it's pretty slow going. Busy with work.

Maybe we can sort something for May?
 
#266 · (Edited by Moderator)
May sounds good.
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I fitted the carbon SPA mirrors today using stainless M6 Security Torx. Pleased with them and happy with how well the mounts have turned out.

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We opted to simplify the mounts from my idea of using them to sort the incorrect mirror angle out and instead I gently tweeked the mirror arms to have less of a bend in them. They're now perfectly horizontal and bang in the middle of the adjustment range on the ball and socket joint.

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Will take them off again now to anodise the mounts black.
 
#269 ·
Cheers dude. The paint was Plasticote and they literally just call that shade 'Orange'.

Have just weighed the car again...

It's heavier than last time!
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VOSA chap was there so had a chat. Apparently the weighbridge there is accurate to within 50kg and varies dependant on the weather.
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Luckily I've had a very kind invite to use some proper scales. Will report back when I have...
 
#270 ·
It's heavier than last time!
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VOSA chap was there so had a chat. Apparently the weighbridge there is accurate to within 50kg and varies dependant on the weather.
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Luckily I've had a very kind invite to use some proper scales. Will report back when I have...
+/- 50kg ......doh! Fine for 20,000 HGV I guess. Will be interesting to see how light you can make it.

Enjoy Rockingham. I had fun there last year. Though I remember spinning rather too much......dry morning, followed by wet afernoon.

Let me know if you do book as I might try to pop over and say HI.
 
#272 ·
really impressed with your build!

I'm getting mine road worthy first, then working out what to do with it although I've got a few custom bits being made up as we speak including some mirror mounts strangely like yours!

I'm West Sussex based as well and know pease pottage and hand cross well but have never seen your car around? when mines on the road it would be interesting to see the difference between a standard 1.8 and a stripped one.

All the best, and if you need an extra pair of hands pm me, I'm in Copthorne and an Auto-Electrician...
 
#273 ·
Love this car.

nick
 
#274 ·
Love this car.
Cheers Nick!

I'm loving it at the moment too. Had a great drive this weekend. Just have a badly blowing exhaust manifold at the moment that's ticking away and sounds like I have a 1.6 with stuck tappets. I can't wait to get my Racing Beat 4-2-1 (it needs posting to me) and get it fitted. I also have a chunk of understeer post fitting the non-PAS rack which I'm putting down to me messing the alignment up. Need to get it booked into WIM asap when I'm next available.
 
#278 ·
Cheers chaps.

I need to get it weighed properly, but its lost around 150kg at this point. I've managed to add a substantial roll bar too.

I'd say it drives quite differently, but I've experienced the change in gradual small steps as I've done things. I also drive quite a few other cars so it's hard for me to reference back to what it felt like initially.

I think this summarises the change quite well... I recently came across an S2000 being driven quite hard on an A road*. We both pulled out to overtake a string of 4 slower moving cars. During that overtake we accelerated from 45ish to about 110 and I closed up the gap between us and as he pulled in I carried on past him.

Obviously weight has more bearing on acceleration at lower speeds and no relation on top speed (where drag governs speed). So it soon runs out of 'go' at higher speed. I had a run in with an e46 325i and I was quicker up to around 60MPH but from 60 - 120ish* he increasingly had the legs on me. Obviously a 325i is hardly a very quick car either..

So, it's not become seriously quick, but it's now got that kind of level of performance. More telling will be on track I imagine, as it definitely slows down and changes direction quicker now.

Best comparison performance wise that I've owned would probably be an S1 Elise B&C Super 160. The Elise was probably 180kg lighter than the MX5 is now but had similar power at 150-odd bhp. With a passenger and a full tank the Elise would probably be only a bit quicker than the MX5 is now.

* In Germany, on a derestricted section of Autobahn.
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#284 · (Edited by Moderator)
I was booked in at WIM on Friday. Took the chance in the iffy weather and drove up there with the roof off. Turned out quite nice so had a great drive.

Obligatory 'On The Ramp at WIM' picture:

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Usual great service from the lads. I had a variation of the 'Evo' settings put back on the car. The drive home was a revelation - it's back to where it was when I sold it to Will, but lighter, more powerful and with better steering due to the de-powered rack. All good.

Tomorrow it gets prepped for Rockingham next Saturday. Oil will be changed using a geniune Mazda oil filter. Genuine Mazda fuel filter is also being swapped on.

I'm also changing the exhaust yet again... 4 exhausts in 2 months? Why not.
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This time I'm swapping everything from the cylinder head to the back bumper. Sneaky peak of the manifold...

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I love the Car Make Corn*s but unfortunately it doesn't fit in with my plans. If you want a slice of retro Eunos rarity I've just posted it up in the classifieds...
 
#287 · (Edited by Moderator)
So, the car's been serviced and the full exhaust system has been swapped over. Only small isssue was that the RB manifold is the shorter length for the later 1.8, meaning I needed the longer de-cat pipe. To keep me on the road, the current decat pipe (which had unfortunately sustained a fairly large dent anyway) became sacrificial. Olly at Owen garages cut and welded a section in to lengthen it and that got me up and running. I've ordered the longer MX5Parts de-cat pipe and all being well should have it today.

After 30 miles the Racing Beat manifold is turning a lovely golden colour.

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So, thoughts on swapping 4-2-1 (Mazdaspeed I think), MX5Parts Decat and Car Make Corn*s exhaust for the Racing Beat 4-1 and 2.25" system:

- The sound is very different. It's now a lower, bassier sound with more menace. The '60s sounding zing and howl that I loved has gone though.
- Noise levels are probably very similar, the larger diameter pipes are cancelled out by the new backbox having a baffled rear silencer V the straight through silencer design of the CMC.
- The new exhaust is heavier by approx 3kg.
- The 4-1 has moved the powerband slightly up the rev range. However, there's much more of a surge to the redline and I wouldn't be surprised if peak power has increased a few bhp. This doesn't feel like it's at the expense of a noticable loss of low RPM torque.
- I dislike the welded on tailpipe finisher - I'll probably cut it off.
 
#377 · (Edited by Moderator)
Love this thread mate - as others have already admitted, I'll certainly be 'borrowing' most (if not all!) of your weight-loss ideas
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. Any more info on making those swah-heet door cards would be appreciated...

So, the car's been serviced and the full exhaust system has been swapped over. Only small isssue was that the RB manifold is the shorter length for the later 1.8, meaning I needed the longer de-cat pipe. To keep me on the road, the current decat pipe (which had unfortunately sustained a fairly large dent anyway) became sacrificial. Olly at Owen garages cut and welded a section in to lengthen it and that got me up and running. I've ordered the longer MX5Parts de-cat pipe and all being well should have it today.

After 30 miles the Racing Beat manifold is turning a lovely golden colour.

So, thoughts on swapping 4-2-1 (Mazdaspeed I think), MX5Parts Decat and Car Make Corn*s exhaust for the Racing Beat 4-1 and 2.25" system:

- The sound is very different. It's now a lower, bassier sound with more menace. The '60s sounding zing and howl that I loved has gone though.
- Noise levels are probably very similar, the larger diameter pipes are cancelled out by the new backbox having a baffled rear silencer V the straight through silencer design of the CMC.
- The new exhaust is heavier by approx 3kg.
- The 4-1 has moved the powerband slightly up the rev range. However, there's much more of a surge to the redline and I wouldn't be surprised if peak power has increased a few bhp. This doesn't feel like it's at the expense of a noticable loss of low RPM torque.
- I dislike the welded on tailpipe finisher - I'll probably cut it off.
I fitted the same manifold as part of a new complete SS system (including de-cat) - absolutely love it (admittedly I'm only able to compare against the standard one that it replaced)...

Can I ask if you notice any increase in the rumble/pops when taking right-handers (i.e. when lateral Gs from right to left are increased)? I definitely notice an increase in rumbling/vibration, but only when the engine is properly warmed up on track or after some 'spirited' driving...

I've had a few passengers on track days seem to think they hear vibrations/rumbling coming from front left wheel arch area, but there's no symptoms in the handling/steering suggesting anything wrong with the suspension/bearings etc)... plus I doubt that would explain why I don't hear anything when the engine is still cold.....

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