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Whenever I hear "the science is settled" or "it's safe and effective" I lose a smidgeon more trust is the system. And, they've done it to themselves.

Black roof over white looks really good.

I just posted AutoTop NL on YT doing 100 - 200kmh in 10.1 in a Euro spec GT (446hp). That's 62 - 124mph. So if this car is still N/A it does have the smell of bovine excrement.

Chip tuning has always had a strong following in the UK and, I think, Europe. But there are a lot of dodgy suppliers about. I'm not a fan of the "one size fits all" approach.

Thanks for the reply. Suffice to say, I do not share your views.

How bad is the scraping? Does going really slow help? How much is a new splitter every once in a while?

How?

How times have changed. But it's good way to get a diff to rebuild on the cheap I guess

Yeah, I get that. But getting you back in your car quickly would be nice. Unless the defect is in the housing itself.

I ran MW50 (separately injected 50/50 methanol water mix) in a supercharged, non intercooled MX5. I could then run normal spark advance, not the 5 dgree retard Sebring advised, but engine temps did not change. Any cooling effect seems to be in the charge and combustion areas only.

Jeez, a complete diff? Why can't they rebuild yours? It's easy enough. Replace the damaged bits, new seals and bearings, set up preload etc, job done. Do modern Techs not know how?

Have you owned a bike? They're so pressure sensitive I checked tyres before every ride after I stopped commuting on them.

That's interesting. I had PS5's on my last car and liked them a lot, steering feel was better than the P Zero PZ4's that were on before. But quite few reviews rated them lower than than PS4S for "enthusiastic" driving. I've also seen vids of cars running them at the 'Ring succesfully, as long...

That's what the spit test is for. A drop of spit where the valve screws in will reveal leakage.

Are you referring to PS5 or PS5S?

I can't say I've any complaints. I've had PZ4's on two cars now. I did think Mich PS5's were better in some areas. They have lot of grip considering their low rolling resistance. I don't know how Michelin achieve some of their results. I think it involves a cauldron and an old hag.

I don't know what the Tech did, but it has noticeably better throttle response at low revs, and the trans shifting seems better (more responsive)too. This is in normal mode. The only reference on the invoice is to using their Diagnostic gear.

Keep in mind the P Zero PZ5 is supposed to be a big advance on the PZ4's that come on our cars. Tyre Reviews put it up with the PS4S in most areas.

Have you searched for that foreskin app? Give it a go.

It's also important to find an alignment shop/guy that does track set ups. Many just follow factory specs and don't know the tweaks that can be done to correct problems at speed.