The Official "RX8 in DSP" Thread - Page 20 - RX8Club.com



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Old 02-15-2017, 02:17 PM   #476
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Anybody make a first event with their car yet?

Mine has hit a major snag, intermittently it has spark. I think I have narrowed it down to the ecm.
My first possible shake-down is the first weekend in April. Though I just ordered a ton of parts...
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Old 02-15-2017, 02:22 PM   #477
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First races are at the end of March for us, weather dependent though.

Just realized I never posted the before and after video of the new clutch we installed from Mazda Motorsports. Can't wait to give it a try.

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Old 02-15-2017, 03:43 PM   #478
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I talked to Mazda speed motorsports about that clutch. Seems you got the only one atm. They are working on offering them to the rest of us. Hope it's soon.
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Old 02-17-2017, 10:23 AM   #479
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I talked to Mazda speed motorsports about that clutch. Seems you got the only one atm. They are working on offering them to the rest of us. Hope it's soon.
I did the same actually, as of wednesday they hope to have pricing and availability targets soon, possible next week (while I'm on vacation)
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Old 03-11-2017, 10:25 AM   #480
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Anyone able to tell me specifics on the Anze-Penske setup? I'm looking for spring rates, etc. before pulling the trigger. I've emailed them and gave them a call, but it seems I'm always a little outside their hours of operation.

Thanks in advance.
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Old 03-11-2017, 11:43 AM   #481
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Anyone able to tell me specifics on the Anze-Penske setup? I'm looking for spring rates, etc. before pulling the trigger. I've emailed them and gave them a call, but it seems I'm always a little outside their hours of operation.

Thanks in advance.
You should reach out to Jeff Hurst if you want spring rate advice. There is also no easy answer as it depends on many variables in your desired setup and preferred handling characteristics...

Or, Anze will valve them for your chosen spring rates.
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Old 03-11-2017, 01:19 PM   #482
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Thanks Tamra, I was partially under the impression that since Anze has been developing for the RX8, they sell a full setup, with spring rates already specified. I'm sure if I asked, they'd be willing to put together a setup like they've already made.
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Old 03-11-2017, 02:22 PM   #483
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After doing more development with Hurst, I'm no longer running the spring rates they sold me. But, Anze builds great shocks and I highly recommend them.
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Old 03-11-2017, 02:41 PM   #484
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Thanks Tamra, I was partially under the impression that since Anze has been developing for the RX8, they sell a full setup, with spring rates already specified. I'm sure if I asked, they'd be willing to put together a setup like they've already made.
The problem is when you get to this level of shock, spring rates are so dependent on driver preference. Companies can offer a general starting point but there isn't an "ultimate" combo.
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Old 03-11-2017, 08:59 PM   #485
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The problem is when you get to this level of shock, spring rates are so dependent on driver preference. Companies can offer a general starting point but there isn't an "ultimate" combo.
^ This.

Anything you get from Anze will be unbelievably good and will give you an amazing starting point. The Penskes from them are just mind blowing at how they transformed the car. Then you can take it and make it suit your style with shock adjustments, alignment, ride height, sway bars, aero, spring rate changes if necessary, etc. Jeff Hurst is also a fantastic resource and played a key role. We have a long way to go with my car, especially after the changes this winter, but she was definitely off to a very promising start last fall!
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Old 03-13-2017, 03:39 PM   #486
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I would argue that a SOHN adaptor is the equivalent to an accusump. They both inject oil into the engine when required.

The hardest part about changing classes is finding/learning the rules clarifications published in Fastrack. There is no easy way to search them.

Yep, doesn't apply when a long run is 2 minutes. Just top off in between...
I would consider SOHN to be merely an oil pan extension. It holds oil for use as intended by the engine. It doesn't pressurize anything, so it's less removed from stock than an accusump. And you reuse the existing stock metering pump, so there's no argument about injection. The adaptor itself is just a block-off plate for the engine oil input and a new external input from a hose barb. The other components are for sealing, and if you get the kit (I got the epitrochoid kit) bottles and a backing plate and mounting hardware.

I am a strong proponent of the SOHN adapter and its use.

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Not that this applies, because, you know, RACECAR...

But, the tiny-*** washer fluid reservoir that comes with the Epitrochoid kit is annoyingly small. I'm considering putting the original washer bottle back in and then finding another way to mount the Sohn bottle.
The washer fluid tank is indeed unnecessarily small, and the hole for the pump is unnecessarily high, so you're wasting at least a tenth of the existing volume. I don't mind topping it off, though.

Also, a note of advice for those considering the Epitrochoid kit: RTV the washer fluid pump seal. I (stupidly) thought the seal would suffice. It does not.


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Originally Posted by gigglehurtz View Post
I've yet to find conclusive evidence that E85 on a N/A Renesis actually makes more power. Those who know aren't talking.

But, if it actually makes more power with no increase in weight, then it's pretty much a given that a top-level DSP RX8 should have it.
...John?

Last edited by archon; 03-13-2017 at 03:43 PM.
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Old 03-15-2017, 02:45 PM   #487
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I would consider SOHN to be merely an oil pan extension. It holds oil for use as intended by the engine. It doesn't pressurize anything, so it's less removed from stock than an accusump. And you reuse the existing stock metering pump, so there's no argument about injection. The adaptor itself is just a block-off plate for the engine oil input and a new external input from a hose barb. The other components are for sealing, and if you get the kit (I got the epitrochoid kit) bottles and a backing plate and mounting hardware.

I am a strong proponent of the SOHN adapter and its use.



The washer fluid tank is indeed unnecessarily small, and the hole for the pump is unnecessarily high, so you're wasting at least a tenth of the existing volume. I don't mind topping it off, though.

Also, a note of advice for those considering the Epitrochoid kit: RTV the washer fluid pump seal. I (stupidly) thought the seal would suffice. It does not.



...John?
Keep in mind in Street Prepared you're not allowed to delete or replace (unless UDBD) the OEM washer fluid tank, to my knowledge.

If someone really wants to run a Sohn adapter and be legal I would just write in with the question, since it's currently a grey area. Here's the link: https://www.crbscca.com/

Last edited by Tamra; 03-15-2017 at 04:38 PM.
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Old 03-15-2017, 04:38 PM   #488
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...John?
Hi Dan.
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Old 03-18-2017, 04:10 PM   #489
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Mike is keeping himself in shouting distance of John V, just 2 tenths back!
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Old 03-18-2017, 05:26 PM   #490
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Very nice, although the courses at GMP usually favor a momentum car.

It's killing me not being there. I turned down a FS M3 ride too
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Old 03-20-2017, 09:48 AM   #491
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Very nice, although the courses at GMP usually favor a momentum car.

It's killing me not being there. I turned down a FS M3 ride too
Mike, John and Shelly took 5th, 6th and 9th on PAX! Imperfect and all that jazz, but still, very nice!
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