John Corbitt

Signature FS in LAS wants $6.23 for Jet A. Think about putting 5000 gallons to cross the pond at that price. That would buy me a new RX-8 with every topoff. BTW, we get it for $3.00 less at home. I am glad I don't have to pay that gas bill

John

QBallz

I can't wait to see the power results once once you get engine management in.

staticlag

Do you think that underdrive pulleys would do more with the AFSC than they did on just a NA car?

swoope

iTrader: (5)

hello mcfly?????????????

quick answer, NO.

beers

Blue87Sport

Congrats, Richard. It looks great!

The carbon fiber looks like snakeskin, as if you injested an anaconda and it got stuck in the intake. I guess if jet engines can injest birds, your AFS can injest snakes.

With 2-3 psi, is the power increase noticable? And how high of RPMs have you tested?

P.S. Some of us Yanks know who Alan Jones is. I saw him win the Long Beach GP in the Saudia-Williams car (1980 or 81). Nothing like the sound of an F1 engine echoing between the building of Long Beach. Nothing, except maybe the sound of and AF supercharged Renesis, that is.

tertou

Congrats RP,

Really nice setup you have there. I love it.

One silly question though.
The silicone rubber at the outlet is there on purpose to see it bubble when pressure rises, or do you plan to later replace it with a CF tubing too (which I'd love the most ) ?

T.

deppenma

If it is a hi quality 90deg silicone elbow it should be good up to about 120+psi Gauge before it starts to yield (flex out)

rotarygod

That's not the final intake manifold design anyways. That's just there to get the car running.

Former A4'er

Hey Richard great work so far! 1 question, if you are still going with an ECU flash for management will you be devloping a different flash for people at high altitude?

I currently live at over 6,000 feet and I wanted to know if your flash could handle the lack of air up here. I would be more than happy to be a test mule for you (hint, hint)

Red Devil

^^^
Does your RX-8, or any other for that matter, have a flash for higher elevations that is separate from the rest of us?

A new flash to your PCM would allow your car to adjust to the specific parameters it needs to run properly. That's why the RX-8's all run off of one flash and each vehicle isn't individually tuned from the factory.

Former A4'er

Don't you need different maps for the same greddy equipped Rx-8 if you travel between altitudes? If I had the greddy turbo I couldn't run the same map here and than take my car to sea level, right?

I have worked on a few Audis that had upgraded from ko3 to ko4 turbos with the upgraded fueling kits and we were having boost and fueling problems and had to get the chip redone to accomodate the elevation.

Thanks for your help!

Hymee

iTrader: (1)

The RX-8 has a BARO sensor, so that should help the altitude encumbered amongst us to a certain extent. And the MAF measures the mass air flow - regardless.

Cheers,
Hymee.

Former A4'er

Hymee,

thanks for the info, don't you sleep? Isn't it 2:30 am there?

EDIT: Richard, either way my offer stands if you need a test mule for testing your supercharger at higher elevation.

Keep up the good work!!

Rootski

iTrader: (1)

And I'll be moving to his city soon. I want a free one too!

I'm still wondering, does this work like the pettit supercharger and dramatically limit the powerband to lower revs? I like the high-rev nature of the 8 and I'm hoping your kit retains it.

Hymee

iTrader: (1)

Please point me to where that information was posted...

And no, it shouldn't.

Cheers,
Hymee.

globi

Just curious. Do you know why it does have an additional pressure sensor? As you said the MAF measures mass air flow. So, pressure info is as far as measurement of air flow goes is redundant. So there obviously must be another reason or is it simply to check the MAF data or what is it?

And nice work Richard.
Question: Why does the compressor need to be connected to the engine oil circuit? Is it not possible to run the planetery gear of the compressor without a pump, reservoir and cooler similar to an oil filled differential? (I apologize if this question has already been raised and answered before).

Nemesis8

iTrader: (3)

RP, you look to be using 5W-20 dino oil. What about synthetics? We use a grade 46 turbine in our pumps here. Mainly for ball bearings and spherical rollers.

twospoons_

I'm glad Freddy Krueger could give you a "hand" with the intake manifold.
That guy just refuses to die

Awsome to see it coming together!
/twospoons

Rootski

iTrader: (1)

Pettit Supercharger:
HP: Currently making 230hp w/o an intercooler. Once they add the IC, they should be around 240hp.
When is it available: Early next year
Boost: ?
How long has it been running: ~8K miles
Engine Management: ?
Price: Around $4k
Comments: HP peaks early, good because you don’t have to rev to 9k to get power, but I kind of like reving, and there won’t be much point to reving above 6k. This is a very reputable company and really seem to know what they are doing. They have actually torn down a Renesis motor to check for wear caused by the SC. They seem to have great customer service and are really concerned with making this a reliable product.

Richard Paul

iTrader: (5)

Man I'm gone for the day and this thread fills up with questions.

Power band should just rise in a way following the rotarys normal path except it gets more poewer built up as it revs.
I can for sure feel the added power as I let build boost. It is nice under freeway cruise to add throttle and feel the extra torque.
It has synthetic oil in it now.
The outlet 90 has 5 layers of poliester weave.
We could have a oil res built in but this takes away the heat better.
Roots (ki) did your ancestors (Roots Bros) desighn the original PD blower?
Alt will be self compensating. It is better then a turbo in that the temp doesnt effect the boost. In a turbo it has to work harder with less heat and density so may get into an inefficiant area of operation.

h-khunterkiller

those pictures make me horny

Nemesis8

iTrader: (3)

RP, still driving around with no management?

zoom44

couldnt let the pics fall too far back

******* Awesome Richard!!

Nemesis8

iTrader: (3)

Yeah, that's my favorite one also. I really liked the Yellow - makes everything aluminum and CF really stand out and get noticed.

caribbean_spice_boy_73

Zoom can you keep bumping this pic up every other thread.. good inspiration there...