The Roadster NA Journey Begins

Dweezle · Postby **Dweezle** » Mon Jul 20, 2015 12:45 pm

I start at 28psi and try to keep them around 32 hot.
But i too have found little difference in 32, 34 and 36.

If that helps any?

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Magpie · Postby **Magpie** » Mon Jul 20, 2015 1:17 pm

Thanks Dweezle will start with 28 and work from there. first time ever on these tyres.

plohl · Postby **plohl** » Mon Jul 20, 2015 1:36 pm

Start at 28 too. Check and drop pressures after each run, usually after 3 runs it's pretty stable.

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Ice88 · Postby **Ice88** » Thu Jul 23, 2015 8:52 am

Out of curiosity, whats your fuel economy like when driving around Magpie?

Magpie · Postby **Magpie** » Thu Jul 23, 2015 9:16 am

Normal city driving about 220 km on E85, before E85 I could pust it to around 350 km on 98 but this required a very gentle foot and driving with economy in mind. About to do a test on city driving with 98 only so happy to post results.

Track wise I would need to have a guess as I have not really noted km/ltrs. I'm out at QR again soon so will keep a note of fuel use, more than likley it will be on 98 though.

toppertee · Postby **toppertee** » Thu Jul 23, 2015 11:20 am

Good luck, finding that miss...... PITA, they can be.

I had one in the boat, took me six months to finally get rid of it.

New injector and coil loom....then main engine harness. MAF, coils and ecu......

BTW..... Give up on the heal toe.....IMHO I found it a complete waste of time.....

If come easy, by all means do it...... I lack the eye hand foot brake timing thing.......

Im a modern car the brakes are more than enough to slow the car down, I just wait till, I've done braking, clutch in, grab the gear, then back on the go peddle, then slide the clutch out.... It seems to help me keep the car better balanced.

My thoughts are your not senna.... Don't try and drive like him. Theres more than one way to skin a cat...

rascal · Postby **rascal** » Thu Jul 23, 2015 11:53 am

toppertee wrote:BTW..... Give up on the heal toe.....IMHO I found it a complete waste of time.....

If come easy, by all means do it...... I lack the eye hand foot brake timing thing.......

Im a modern car the brakes are more than enough to slow the car down, I just wait till, I've done braking, clutch in, grab the gear, then back on the go peddle, then slide the clutch out.... It seems to help me keep the car better balanced.

Completely and utterly disagree on this one..
Heel and toeing is a skill that should be persevered with to learn, as it can improve your times on the track, and also is nicer on the gearbox synchros even if doing it on the road at normal day to day speeds.

Also it isn't to help with slowing down either, the brakes are for slowing down, (gears are for accelerating)
Heel and toeing is to ensure that there isn't a massive discrepancy between rotating speeds of the gears in the box when changing down, so it doesn't either lock the rears at worst and spear you off, or at best upset the balance of the car by adjusting the available grip at the wheels.

Magpie · Postby **Magpie** » Thu Jul 23, 2015 12:05 pm

toppertee this hurts my limited feelings but you are right... You always are proven right in the end

Heel and toe I'll practice on the road till I can get it right however for the track your advice is what I'm now following "just wait till, I've done braking, clutch in, grab the gear, then back on the go peddle, then slide the clutch out".

rascal I understand what he is saying and your points as well. It is a skill that should be mastered however at the moment I'm getting more compression lock because of bad technique and this is hurting me more time wise. It is not a good idea to practice bad technique. I will make better use of heel/toe however I have to learn to do it right, at the moment I'm more blipping the throttle than rev matching. The data logs also agree that I'm blipping and not rev matching.

Getting some driver education again soon so hopefully more advice on good heel toe technique could be given.

"New injector and coil loom....then main engine harness. MAF, coils and ecu......" yep that is what is on the card, testing bit by bit. It is not coils/plugs/CAS as changing these parts makes no difference, so it is elsewhere. An observation is that it has only developed since the E85 tune/parts were done, so this may help narrow it down. A test may be to swap out the COP's for OEM setup and see what happens. The hardest part of the issue is that it only develops over time.

I know I'm not Senna, he has not been able to drive since 1994

toppertee · Postby **toppertee** » Thu Jul 23, 2015 12:27 pm

rascal wrote:
toppertee wrote:BTW..... Give up on the heal toe.....IMHO I found it a complete waste of time.....

If come easy, by all means do it...... I lack the eye hand foot brake timing thing.......

Im a modern car the brakes are more than enough to slow the car down, I just wait till, I've done braking, clutch in, grab the gear, then back on the go peddle, then slide the clutch out.... It seems to help me keep the car better balanced.

Completely and utterly disagree on this one..
Heel and toeing is a skill that should be persevered with to learn, as it can improve your times on the track, and also is nicer on the gearbox synchros even if doing it on the road at normal day to day speeds.

Also it isn't to help with slowing down either, the brakes are for slowing down, (gears are for accelerating)
Heel and toeing is to ensure that there isn't a massive discrepancy between rotating speeds of the gears in the box when changing down, so it doesn't either lock the rears at worst and spear you off, or at best upset the balance of the car by adjusting the available grip at the wheels.

Theres a ton of people who read from the same race bible as you.... All say the same thing.

But there plenty of people like me with a dirty little driving habit. Lots of then plenty fast.... You will even see a lot of ex karts lock the rears on entry to slide the car into the apex.....IMHO.... It maters not, how you get the job done. As long as you are out there having a go and a good time.

Just to make you feel sick, In my last race car, with a stock box, I use to left foot brake, blip the loud peddle and bang her into gear, on the down shift... The guy who now races it, doesn't heal toe either. He's super bloody quick.... :lol:

Magpie · Postby **Magpie** » Thu Jul 23, 2015 12:39 pm

I would like to learn to left foot brake

toppertee · Postby **toppertee** » Thu Jul 23, 2015 12:42 pm

Magpie wrote:toppertee this hurts my limited feelings but you are right... You always are proven right in the end

Heel and toe I'll practice on the road till I can get it right however for the track your advice is what I'm now following "just wait till, I've done braking, clutch in, grab the gear, then back on the go peddle, then slide the clutch out".

rascal I understand what he is saying and your points as well. It is a skill that should be mastered however at the moment I'm getting more compression lock because of bad technique and this is hurting me more time wise. It is not a good idea to practice bad technique. I will make better use of heel/toe however I have to learn to do it right, at the moment I'm more blipping the throttle than rev matching. The data logs also agree that I'm blipping and not rev matching.

Getting some driver education again soon so hopefully more advice on good heel toe technique could be given.

"New injector and coil loom....then main engine harness. MAF, coils and ecu......" yep that is what is on the card, testing bit by bit. It is not coils/plugs/CAS as changing these parts makes no difference, so it is elsewhere. An observation is that it has only developed since the E85 tune/parts were done, so this may help narrow it down. A test may be to swap out the COP's for OEM setup and see what happens. The hardest part of the issue is that it only develops over time.

I know I'm not Senna, he has not been able to drive since 1994

IMHO....

You have had enough driver training to last you a life time..... Got way to much s#it going on between your ears....

Here's a idea..... Start the car, drop the clutch on the pit exit....then go do some skids and have fun.....Come back in....repete...

Last time I was at a track day...Someone said to me, I would be much quicker, if I drove smoother......I said " F that, driving smooth is bat sh*t boring".

toppertee · Postby **toppertee** » Thu Jul 23, 2015 12:43 pm

Magpie wrote:I would like to learn to left foot brake

When you of work next?

Come out and have a drive in my Kart. You have no choice....

Magpie · Postby **Magpie** » Thu Jul 23, 2015 12:46 pm

toppertee I miss talking to you in real life

I'm starting to enjoy myself more each time I get on the track, will I ever be 'fast' who care I'm having fun and learning a new skill:)

Off work this weekend, working 10 on 4 off. Where is your kart?

Trackphotos · Postby **Trackphotos** » Thu Jul 23, 2015 12:57 pm

Nobody has claimed that you can't be fast without heel toe shifting. People who are fast without doing it are fast despite not doing it, not because they aren't doing it. Not everyone can pick it up easily, and if you can't then sure maybe you're better off doing it the simple way rather than risking compression locking it when you get it wrong. If you can do it though, there's nothing to gain by doing it the simple way.

rascal · Postby **rascal** » Thu Jul 23, 2015 1:03 pm

toppertee wrote:Last time I was at a track day...Someone said to me, I would be much quicker, if I drove smoother......I said " F that, driving smooth is bat sh*t boring".

I think you just agreed with me there toppertee.
If you were smoother and did heel/toe rather than sliding into corners with the rears semi locked then you would be quicker around the track.

As for bat sh*t boring?, well I gain way more satisfaction out of beating faster cars than I do backing it into corners, moto gp style.