What have you done to your RX-8 today????

[13Black]

Think of it like trying to light a fuse.

A bigger lighter only helps up to a point.

If your fuse is 1 meter away then it doesn't really matter how big your lighter is, realistically
A big ol' thick fuse (excess fuel/air to ignite when highly boosted) then you do need chunky coils.

[qwakers]

which explains why a decent ignition sysemt can help with deflooding/preventing faliure to start after being switched off cold.

[Ollie]

Yeah I get what you mean. I was thinking mostly that an engine that has even compression across the faces without terrible loss of fuel/air can still start up pretty quickly given the assistance of a good ignition system up to that point if that makes sense?

Compared to an engine where you do have lower compression and the coils would hit the limit and you get the slow sluggish starts we all fear.

[Dentist]

this mother [edited] cost me times and energy. corrosion in wold class level.

the sliders changed the mount changed, finally the piston and seal.



as far I know no one talked about this and on the other air box I didnt see it.



wireless charger any one ?

this is expensive charger by the way with 2ndry magnet.
thats the best place the speaker air flow will cool 'em.


just a start


happy 39,000 mile birthday !

[13Black]

Yeah I get what you mean. I was thinking mostly that an engine that has even compression across the faces

Similarly, [even compression] has been wildly overestimated as [a good thing].
In the vast majority of cases, it means very little compared to results being high or low.

I've tested cars with one rotor quite lower than the other.... but it ran fine and is still going.

Ask quakers ^ how consistently "even" but terrible his results were ... about 2 hours before the engine blew up after putting up a fight to start that day.

Of course, if one face is showing 2 bar then you've likely got a seal missing and that's quite bad... I've actually stripped an engine that had a missing seal, but it drove up the motorway to the workshop, so some slightly lumpy readings in the 6.x's is nothing to worry about.

[Devon_Fourie]

I've tested cars with one rotor quite lower than the other.... but it ran fine and is still going.

I feel like I may be a bit of an example here front rotor in mid to high 6’s and rear rotor in low 5’s. Yet I don’t have any problems with starting hot or cold, idling or driving apart from sluggish low down power. I even took it around donnington in June and she showed allot of other cars her rear end as we went by .

[Ollie]

Makes sense Nick. Thanks for the edumacation.

[graemeS83]

Check engine light came on, hopefully something trivial but I nursed it home just in case. Maybe its a protest for all the stop start traffic its had to endure recently, poor thing.
Ordered an obd2 reader from Amazon to find out what's making it unhappy, its probably not a bad idea to have one handy anyway.

[Harrymonk]

Sold it, got a good price offered as planned to sell later in the year couldn't say no. New owner is loving it. Miss it already....Onward and upwards though, was going to do final post in my project thread but no longer a member so here's a few parting photos, just got her where I wanted and shes gone. Will still loom and keep an eye on the forum as there are some projects I am very keen to see progress....

Last Day 2 by Martin Harris, on Flickr

Last Day 1 by Martin Harris, on Flickr

[Ollie]

Received a package from Rob (Goodeggbob) 2 genuine Mazda C coils and 2 Bremi coils that are all in working order plus some NGK leads. Going to check my coils and swap them about to see what happens! As I have no idea what coils and leads are currently in the car this could be an engine saver until I get the RRP coils!

IMG_20190730_155741.jpg

[Dr. FrankenRex]

I can has done some funs with The Audio Guys today. Dyno funnage and many loud noises.

New exhaust setup is epic and noisey. Just needs some cosmetic finishing.

IMG_20190730_141323.jpg

IMG_20190730_145151.jpg

https://photos.app.goo.gl/oWEsRgmoExDcE6gM7

[Honkytonk]

I can has done some funs with The Audio Guys today. Dyno funnage and many loud noises.

New exhaust setup is epic and noisey. Just needs some cosmetic finishing.

...Brap?

[delta0]

I can has done some funs with The Audio Guys today. Dyno funnage and many loud noises.

New exhaust setup is epic and noisey. Just needs some cosmetic finishing.

IMG_20190730_141323.jpgIMG_20190730_145151.jpg

https://photos.app.goo.gl/oWEsRgmoExDcE6gM7

Pettit system?

[Dr. FrankenRex]

...Brap?

Yarp

Full Bridgeport with race extension

Pettit system?

Narp. After being kicked out of Castle Combe for being noisy I had to return to the drawing board. It's not final, but it's running RB manifold, OEM gutted cat and a Cobra catback for now. The tone and sound is actually really nice to be fair.

[Honkytonk]

...Brap?

Yarp

Full Bridgeport with race extension

Pettit system?

Narp. After being kicked out of Castle Combe for being noisy I had to return to the drawing board. It's not final, but it's running RB manifold, OEM gutted cat and a Cobra catback for now. The tone and sound is actually really nice to be fair.

Didjer happen to get any power figures while you were avec les dyno?

[delta0]

...Brap?

Yarp

Full Bridgeport with race extension

Pettit system?

Narp. After being kicked out of Castle Combe for being noisy I had to return to the drawing board. It's not final, but it's running RB manifold, OEM gutted cat and a Cobra catback for now. The tone and sound is actually really nice to be fair.

That’s a shame. I assume the Pettit was running decat. Sports cat would have kept the dB down unless Castle Combe has a crazy low limit.

[Dr. FrankenRex]

Didjer happen to get any power figures while you were avec les dyno?

I did, but I have to question the validity of them. Not because they are low per-se, but more because the info seemed completely different from the Revs hub dyno.

In the first instance it had a peak of 215hp at the fly. A little lower than I'd have expected, but not too bad all things considered... at 9,650rpm... This seems... Unlikely...

Second is the wheel horsepower. On the same run that resulted in 215hp at the fly, it only read ~145hp at the wheels... So that assumes a whopping 70hp lost through the drivetrain Again, just doesn't seem right in my mind. Happy for those with more dyno experience to say "yeah, that's normal" as that just seems like a large difference to me. OK, you can take tyre pressures, tyre temp and so forth in to the equation which a hub dyno (like Revs') wouldn't consider, but if my car is genuinely only putting 140hp down to the tarmac then I'd be beaten on the road by a lot of cars that I've beaten in a straight line...

And finally is the resistance introduced by the dyno itself. FrankenRex idles at 2,000rpm and, as you have heard, braps. If you try to drive along a level road at 2k rpm then it also braps... With bunny-hopping consequences. The dyno guy held it at 2,000rpm on the dyno and it didn't brap at all, it just happily sat there 'cruising'. It only does that when it's going up an incline on the road.

So yeah, not sour grapes about the absolute power as 215bhp is respectable as far as I'm concerned, but just baffled about the weird behaviour my car exhibited on said dyner. Also got a flat spot at about 4500rpm which needs investigation so may be linked

That’s a shame. I assume the Pettit was running decat. Sports cat would have kept the dB down unless Castle Combe has a crazy low limit.

Not to me, actually. I really really like the tone from the current setup - more than I thought I would as the Pettit is very enjoyable. This still has some awesome 'zing' at the top end like it always had, but now it has a really lovely deeper rumble and burble that the Pettit didn't offer.

There would have been options to get the volume of the Pettit down, but this has yielded a far more positive outcome in my mind

Also, Castle Combe is 100dB static at 4k rpm. I hit 99.9 static, went out, hit 10k rpm and suddenly I'm the bad guy... Sheesh...

[Eddie_r32]

I think it may of been yourbbangs and pops that sent combes sensors off

[warpc0il]

Was the DSC/TC completely switched off for every dyno run? It resets every time the ignition is switched off/on.
Leaving the system even partially engaged (short push on the button) means that it will retard the ignition and apply the rear brakes, to reduce power and stop the rear wheels spinning, both of which would be consistent with the results and behaviour you're reporting.

A dragging handbrake would also account for some of the results and behaviour, and it's so easy to not release the handbrake fully when jumping in/out to do dyno runs.

[Dr. FrankenRex]

I think it may of been yourbbangs and pops that sent combes sensors off

I didn't engage the synthetic pops and bangs, and it wasn't hot enough to do them naturally, so don't think so It was ungodly loud.

Was the DSC/TC completely switched off for every dyno run? It resets every time the ignition is switched off/on.
Leaving the system even partially engaged (short push on the button) means that it will retard the ignition and apply the rear brakes, to reduce power and stop the rear wheels spinning, both of which would be consistent with the results and behaviour you're reporting.

A dragging handbrake would also account for some of the results and behaviour, and it's so easy to not release the handbrake fully when jumping in/out to do dyno runs.

I pulled the ABS/DSC fuse for the entirety of the session.

[ChrisHolmes]

Does pulling the fuse possibly alert the ECU to an ABS/DSC problem thus resulting in it limiting engine power

[13Black]

Negative.

[delta0]

I’ve read in some places that the cat has a temperature sensor and it will try to protect the cat if it gets too hot. Obviously there is no cat here but if the sensor is still present or if removed could it try to switch to a safe setting?

[sKenDread]

Took my car out a few nights ago. Aqua planed over a huge puddle not fast (40m) and didn't see it until it was too late.
Hit the damned thing it slowed me down and ended up on the edge of the roadside. Scraped the wheels, bulging front tyre now. Getting replaced today.
I only noticed today that it also blew one of my shrouds off and the other was hanging.
Passenger side carpet is drenched and ingress in my headlight.
I'm so lucky I didn't fully loose it and the car managed to stay straight and not plow me into a ditch

[Bigblueknight3k]

Well main thing your ok and bonus not to much damage i guess

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