The Underdog

eBay Jon. It's nothing special just a cheapy but has a good shape profile

jonfoc

Do you have a link?

The Underdog

Like this one Jon but mine is the wider version at 1200 I think off memory. http://pages.ebay.com/link/?nav=item...d=271577319939

The Underdog

This is my first session in the morning.

nevsrevs

Car looks really stable mate. Good peddling

PaulinhoT

Sounds lush Steve, looks very well balanced too.

With regards to your roof question, maybe worth looking into trying some "flow visualization paint", that would give some interesting results I recon.

The Underdog

Thanks chaps. It is really stable to drive but it's too safe. I dont want it like it was at silverstone but I also don't want the rear grip it has now. Somewhere inbetween is what I will find. Im not unhappy in any way as a big part of the fun for me is messing about with it. Just want to get back on track asap.

The Underdog

Dug out my old phone from when I last went to Combe and I was wrong about how much top speed I lost. I was 2mph slower this time not 6. That's not as bad as I thought. Few tweaks and may gain a little baxk

nevsrevs

Wat about lap times?
What are your rear settings?

The Underdog

My lap timer failed. It was timing double laps. But the top speed was showing. I timed from my footage and best was 1:24:1. Last time I did 23:97. Rear settings are 2.5-3 camber. Toe in .2 and shocks on 25-27 on 400lb springs.

The Underdog

PaulinhoT

That looks mighty

The Underdog

thanks paul.


im having a redesign of the front splitter next. its got some flaws in its design so hopefully by next track day i would have made a new one.

also the thing this pic really shows is that although the wing is roof mounted its not actually higher than the highest point of the roof. kinda shows how much the roof tapers down to the back.

mattxr3i

I was at the Castle Combe action day although I was unable to go out due to still running my engine in. Car looked like it was going well though. Are you going on the 20th June?

The Underdog

thank you. i want to do a track day in june but nothing set in stone yet.is it pembrey day you mean though.

The Underdog

grabbed an hour tonight and made a start on a new splitter. its going to be wider, lower and far deeper under the car.

the pen outline is the old one. still plenty to do though

nevsrevs

Looking good.

PaulinhoT

I think I have the same tape measure as you Steve lol...

Splitter is looking good, how far back are you going.. i.e. as far back as possible ?

The Underdog

To the rear of front subframe hopefully Paul. Picked up my ally today for it.

Straight_4_N/a

Steve have you thought about using a collection front bumper?
There abit longer then std bumpers and they have enough room in them for 2 brake air feeds 1 cold air intake and a oil cooler.

mattxr3i

oops, I mean't Classic Car and Retro day - but my friend has just purchased an ST170 and I asked on his behalf whether he could come and it was a no, which is fair enough. I would like to get over to Llandow again at some point this year. Next time I see you I shall say hi (If you see me then feel free to come over).

I should add that I use a "Standard on the outside but modified on the inside" Escort GTi for track although I used to have a black Mk5 XR3i before it got too light (rust)

The Underdog

I hadn't really no. That would just get me into more spending unnecessary. Lol. Iv got plans for subtle changes to this bumper for now.


Ah no not going to that show sorry. Yes will def look out for you. Are you at RS Combe??

The Underdog

so rather than wait until the splitter is finished i thought id add some pics as and when i get time to work on it. had an hour or so today so this is the final shape.



the cut out is where the manifold and cat is. i dont want the plywood close to the heat so it will get some aly sheet over the bottom of it like this



and heres a comparison of the old with the new.




its going to be 45mm lower than the old one. so about 80mm off the floor this time around.

thanks for looking as always

nevsrevs

Looking good mate.

PaulinhoT

Well doesn't that look nice

The Underdog

Thanks chaps.

its still not finished but i have done some more work on it. its painted in undercoat.

cut the upstand so it can curve to the shape of bumper









and mocking up its mounting points.


rivnut the subframe





front mounting bar as the last one but 50mm lower and theres 6 rivnuts across the front bar.





exhaust cutout that will get aly cover





so still a bit to do to finsh it and paint it.

but i also had the bent last week. its going to be the flat floor. rather than flatten it all im going to have a central tunnel from front to back. its only 125mm narrower each side of car but it will make jacking up easier.


sheet is 2500mm long so will run from front splitter to back of rear subframe where eventually il make a diffuser.

lots to do and little time. thanks for looking

andy.v

wow..

Glenn_

iTrader: (1)

I hope after all the hard work that it works.

The Underdog

That's the gamble Glenn, but in theory it should but I suppose it comes down to how well I execute the science lol. I'm more than capable of messing up a good theory

nevsrevs

I have sent a email about combe rides mate, awaiting reply.

The Underdog

Tidy. He replied to me next day. What's your plan half day??

The Underdog

New rear springs turned up today






Going to try 10kg or 560lb rear spring. Standard is 7kg 392lb.

nevsrevs

Non sure wats best to do Mate? What are you doing?
Should of said about springs as we got/had a few pairs at different rates, think we chucked them though, will look next time I'm down unit.

The Underdog

im doing morning only. i expect the morning to be really busy queing up but doing charity rides means a free pass to run out anytime.as it will be short runs with passengers it will give me plenty of time to suss out how the mods are feeling. then in the afternoon il have some time to myself to tinker and enjoy.
did you read my pm, cos i got a blank message as a reply. no probs on spring but thanks anyway.

nevsrevs

Yea I did try and reply but phone goes funny,
I will book morning too then! Good plan,

PaulinhoT

Great updates Steve, it will be interesting to see the results of your hard work.

The Underdog

thanks, back on it today.


flat floor in progress. took a while to sort the mounting points out but done some of this



fitted the threaded bar and then set about working out how far down floor needed spacing. run a cotton line from front to back as the pic above and then put spacers in like this



some rivnuts in rear subframe.



cut outs for rear suspension.




partially fitted. not all fixings in at this pic.













its 90% done now just some final fixings and paint splitter.

nevsrevs

We'll done mate, looks ace.

The Underdog

thanks rog. its got such a good rake from front to rear i got high hopes for some benefits. the floor rises 50mm from front to rear which should be great for aerodynamics. a diffuser will come at some point just not sure if it will be before combe. iv also got some mods planned to smoothe out airflow on the front end but il wait till i do it to show what im thinking. if i can push my top speed at combe from 110 to 112 id see it as a great success. thats my target.

nevsrevs

Finger crossed mate, or you can slip stream me lol