Also, what about the clutch delay valve I've seen on high horsepower supras and rx7?

It results in a mechanical slip, via slow clutch engagement.. but could be a KISS method for reducing shock load

 

Cool, thanks. Just follow FM's instructions to adjust?

Maybe save isn't the best word. But anything that I can do that will help keep the drivetrain alive, I'm listening. I know barking 2nd, 3rd, and 4th with drag radials means the flat shift settings are off. And they were off when I broke an axle. I'm going to try to get them setup as to minimize drivetrain shock as much as possible. I like your VSS idea, that's getting hooked up!

glade- I'll have to look into those, don't know much about them. I don't think my clutch would like slipping much, but it's also pretty cheap to replace if it dies vs a diff or transmission. I'll look into that.

 

If your shifting at nearly 9000 rpm can you stand an even lighter flywheel? Not practical, I know but...

 

Wrinkle wall slicks. They are specifically designed to absorb the shock load and moderate the pulses of power. This maintains traction but it also evens out the loads.

 

Light flywheels help shifts but hurt launches. Light flywheels reduce the pulse smoothing effects of the flywheel, increasing the likelihood of transmission failure in high power cars. If our transmissions weren't already trouble I would say go for it.

 

^ True that.

 

he's already on slicks

it's probably the biggest reason the trans is still together

 

moar boost = moar air flow, moar airflow = moar power. If you are making boost then your engine is making power.

Unless you are able to retard spark so ridiculously late that your ignition event happens with an open exhaust valve. Wonder if that would work...

You're ebay turbo would go byby pretty quick.

 

I thought he was on drag radials, like with treads and not wrinkle walls.

 

Is there a reason to not just put in a proper rear end? If you are already making 500whp and plan on turning it up at what point will the internals of the dif its self blow apart?

Monster miata seems to have a pretty cheap setup and if somehow you do break axles once you have it all in then they are only $450 for another set.
That and youd be able to easily re gear the car to match the new power better if you felt the need to.

 

the reason is that he's exploring limits of these parts for the sake of doing it.
which is pretty cool if you ask me. but at 500whp he's gonna be fighting a super uphill battle lol

 

Yeah, I haven't ruled those out. If I snap another axle with better launch/flat shift setting then that's probably my next step. I'm currently on drag radials, and I air them down at the track. They are way better than street tires, but not as forgiving as wrinkle wall slicks. Main reason I'm on DR's right now is so I can drive on them on the street too. When I get to track, I just air down and I'm ready to race. Air up and drive it home.

Also keeping the stock flywheel for reasons already mentioned, mainly transmission life. No way this trans would live with a light weight flywheel given what I'm doing to it.

And yes just having fun and seeing what these parts will take. These parts bolt right in, and I have spares, so why not.

 

oh wow, in that case get wrinkle wall like yesterday

all this other stuff is silliness compared to how much those should help

 

It's not silly, anything that will improve reliability or make it faster, I'm interested. These do wrinkle some, just not as much as a slick. I air them down to 16 PSI when I race.

Plus I already have drag radials, and swapping at the track means I need at minimum, two tires/wheels and a jack. Jack would fit in trunk, tires would not fit anywhere. There's an obvious problem here, and the "solutions" suck.

 

Plenty of jacks fit in the trunk. its fitting the tires without a tire trailer that is hard, unless you dont need that passenger seat.

 

Use trailer hitch as mechanical bump stop?

Picture a suuuuuuuper ghetto wheelie bar in the form of the reciever....

 

Do you have any friends? Whoever is taking videos can carry 2 tires in their car, right?

 

Wheelie bar that also doubles as a tire hauling rack?

lol

 

Tire tails seem to mostly not suck. They don't sell them any more for some reason, but I can't imagine it's hard to weld one up, and you seem to be handy with a welder.

--Ian

 

I'm not saying this solution doesn't suck, but it gets the job done if the track isn't too far. Worked for me for years until I got a proper tire trailer.