Author Topic: The other rotary Westfield!  (Read 21783 times)

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Re: The other rotary Westfield!
« Reply #195 on: February 19, 2016, 07:09:04 PM »
Its prob 50/50. Also i had loads of camber on the front i ended up taking it right off as tended to lift front of car whilst turning if that makes sense...i also settled on dead parallel no toe in or out.
Happy now aint gonna mess with it again.
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Offline Smiffers

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Re: The other rotary Westfield!
« Reply #196 on: February 19, 2016, 07:40:31 PM »
Yes I understand, if you have too much in corner grip from high camber and roll you end up lifting the inside wheel giving a twisting effect so back it off to get a good compromise.  I have not got to that point yet, car feels fairly flat and just scrubbing on under power, I think that is going to be roll bar related the more I think on it...  It's set someplace in the middle of the range at the moment, will try softening it up.

Toe wise I have 0.5mm in on the front and 1.25mm in on the back, stability feels great on track.  Might back off the rear toe a smudge to see how close to parallel I can get without it getting scary!
Westfield SEiW - 13B-MSP BW 7670 Turbo
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Re: The other rotary Westfield!
« Reply #197 on: February 19, 2016, 07:55:12 PM »
Nice to able todo on an airfield circuit with plenty of run off! I did all my changes at Hullavington but only the front as nothing i can do on rear! I got the playskools anti roll bar kit happy with it very well made and fitted a treat.
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Offline clive

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Re: The other rotary Westfield!
« Reply #198 on: February 19, 2016, 08:42:49 PM »
1.25mm in on the back, stability feels great on track.  Might back off the rear toe a smudge to see how close to parallel I can get without it getting scary!

I would leave rear toe at that, run parallel on the front but anything getting near or anything inducing toe out on the back will get real unstable, but then I'm guessing you know that ;)   
All the best Clive

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Re: The other rotary Westfield!
« Reply #199 on: February 19, 2016, 08:57:39 PM »
Thanks Clive, positive confirmation is all good!  I have got to change something, I'm running out of excuses for not going racing. 😀
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Re: The other rotary Westfield!
« Reply #200 on: February 19, 2016, 10:53:54 PM »
Just had a look at your pictures, I love pictures and video for telling what is going on as many times this can show more than you think you feel.

Front end looks very good, but if you look at the rear camber and the effect its having on the tyre, to me  it needs 1.5 degrees of negative camber at the back (no more than that)  as your showing positive camber under load.

Then stiffen the back shocks up just a couple of clicks, or tighten up the rear bar slightly if you have one.

If I am right you will find turn in will be better and traction off the corner should improve, without hurting the front end, let me know  ;)   
All the best Clive

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Re: The other rotary Westfield!
« Reply #201 on: February 20, 2016, 11:47:15 AM »
Hi mate, what tyre pressure as well....cold mine are as low as 18 psi...almost look like there flat got a sidewall bulge...once warm they raise 24psi which takes about a lap.
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Re: The other rotary Westfield!
« Reply #202 on: February 22, 2016, 04:16:09 PM »
Thanks, guys.  Will have an experiment with rear camber Clive, good shout, does look like it is going positive as you say.

18psi cold - Snap!
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Re: The other rotary Westfield!
« Reply #203 on: February 24, 2016, 08:18:22 PM »
Hey, how are you bearing up for Friday?  Either way hope you are doing OK.

If it tempts you the missus is doing some home made Mexican carnitas for dinner, makes you drive faster ;)
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Re: The other rotary Westfield!
« Reply #204 on: February 25, 2016, 06:59:18 AM »
Im going to ring Natasha today as showing fully booked to see if i can run for a few hrs in afternoon. Im feeling alot better as kidney infection test all clear. But the underlying problem that im waiting on a op for is not sorted so i cant stray too far from the bog lol! Bloody annoying but what can you do. Im in on the 11th mar which is hullavingtons last ever trackday b4 they dig it up 4 houses.
Thanks for the offer id be there with bells on usually.
Worst case scenario ill drive over in my road car and a have a watch and natter. My neighbours going as well....watch out for an orange bmw compact....its rapid...trick m3 engine init! He was catching me up when i was running the bridgeport so i went in the pits lol!
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Re: The other rotary Westfield!
« Reply #205 on: February 25, 2016, 09:03:32 AM »
Well hope you make it down one way or another.  It is going to be a slow day for me, I have to run in the new diff, low load and try to get 150 miles on the thing before we take it racing!

Can anyone say moving chicane?
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Re: The other rotary Westfield!
« Reply #206 on: February 25, 2016, 09:04:14 AM »
Oh and I have to fit the thing, and put the car back together, and it hasn't been delivered yet, and go to work!
Westfield SEiW - 13B-MSP BW 7670 Turbo
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Re: The other rotary Westfield!
« Reply #207 on: February 26, 2016, 07:56:40 AM »
Hi Mate,
good luck today hope the diff went in sweet....i didnt get chance to ring natasha yesterday got caught up trying to get my fd through an mot.

Im hoping to get over later with wheels in the boot but im also hoping to get an mot on FD.

have a good day hopefully ill see you laters!  8)
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Re: The other rotary Westfield!
« Reply #208 on: February 28, 2016, 10:56:16 AM »
Day went well, kind of...

Started badly, night before after diff fitting went super smooth...  car wouldn't start, fractured terminal on a cell in the battery pack, managed to lash it back together and get the cells balanced before bed at 0230!

Up at 0700 to get the car and tools loaded and off to Abingdon arrive at 0900 pull the car of the trailer and the battery has not survived the night!  So the boys trundle off to Raceparts in Walingford and come back with a little gel cell an hour later.  Put that in and it starts on the button...  Success!  Kind of...

Go for a noise test 105db! Whoops, seems I have melted all the wadding in the silencer (again) during the 2 test days.  Agree with Erling that I can set a rev limit for the day in the ecu.  Rev limit set to 6750rpm away we go!

By now it is 12 and I need to put 150 gentle(ish) miles on this diff, 60 litres of fuel later and the car has not missed a beat, new diff run in, job done.
Westfield SEiW - 13B-MSP BW 7670 Turbo
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Re: The other rotary Westfield!
« Reply #209 on: February 28, 2016, 11:10:29 AM »
Soz mate i didnt make it my day went frantic from get go as well.
Apprentice said he could get his alternator back on his mx5 so came round mine....pulley sheared off crank....3 hrs later lol then fail on fd headlights...id got the  hump by 2pm lol.
You goona do the Hullavington 1s in March. ?
92 FD rx7 Twins 13.5psi.  EX Track car
EAT SLEEP ROTOR REPEAT.