9krpmrx8

iTrader: (46)

Let's see some results.

Williard

iTrader: (18)

9k, Whats your Average boost level for daily driving? 8PSI? 10PSI?

Whats your WHP?

Travis

9krpmrx8

iTrader: (46)

10psi (not really smart for longevity) for most of the rev range and then tapers down to 7-8psi by 8500RPM. I would smooth that out a bit but I'm scared to do that since I just had a scare and thought I damaged the engine (ran out of premix in my SOHN and had a weird tick in the engine that has gone away). Current WHP is unknown since a remote retune with Steve and running E85 but if I had to guess, I would say 280-290ish on Steves Mustang Dyno.

But really I have found that dyno numbers don't mean **** in the real world. If it helps I put a smack down on a buddies bolt on and tuned Genesis Coupe and My RX-8 feels faster than my 2011 335i (oh the torque though).

9krpmrx8

iTrader: (46)

discotech, where do you live?

Williard

iTrader: (18)

I still haven't figured out how to run a Sohn type device with this Turbo setup.

A buddy has an idea but he's busy more often than not so i've been attempting to figure it out on my own. Up to an include modifying an OMP to block off engine oil and pump two stroke from a container.

Any thoughts?

Im going to relook at your build thread and see how your setup looks with a sohn.

Travis

BigBadChris

iTrader: (4)

Travis

Scott says the new style manifold will accommodate Sohn, but the previous gen will not. As far as I can tell, my only option is to hack up the turbo intake pipe in order to make room. I have also purchased an additional Sohn, with hopes to cut it down as thin as I can possibly make it.

Brettus

iTrader: (2)

Dunno why you would go to a lot of trouble to make a less reliable system of dubious benefit ................

Williard

iTrader: (18)

We can continue this conversation at B@W or within my build thread so we don't clutter his up.
Chris^

Brett, We could argue ALL day about reliability and the benefit or downside to injecting 2 stroke over conventional oil. I shall send you a msg on chat .

Travis

discotech

Currently on the east coast in Va


as soon as the snow clears up I'll do a 10 PSI log haha. Although I might have one lying around from the summer.

Seems pretty relevant to me. The more discussion there is about these kits the more the information spreads, keep it running guys!

discotech

Here's an older log to tickle you guys for now. The AFR was a pretty solid 10.7-11.1 the entire boost range as per my AEM gauge (just slightly under detectable range from the stock wideband.

9krpmrx8

iTrader: (46)

Well if you ever get anywhere near Dallas or if you feel like Paying for a plane ticket then I suggest getting with Steve Kan at PRT for a live tune. A live tune is the way to go to get it really dialed in.

JimmyBlack

Have you had Brettus tune your car yet 9krpm? I believe he's doing this one.

yomomspimp06

steve khan tuned 9k

slash128

Looks like some timing was getting pulled.

discotech

Once I'm out of school I'll definitely check that out. There aren't a lot of rotary tuners on the east coast.

Yeah, definitely down low. The upper rpm ranges seem to fine though. I'm not entirely sure why it was doing that because it didnt register any knock events and the AFR was steady

9krpmrx8

iTrader: (46)

Yeah Brett did a couple of tunes for me and we flew Kane in for some tuning as well but we could never get it running right. I then had Steve Kan tune it live and he got it sorted out. Now I am running a E85 mix and it is running really well.

I am not a fan of remote tuning on the RX-8.

Brettus

iTrader: (2)

It certainly isn't easy to get a good result when you aren't there to see/feel/hear what is going on . I generally get there in the end with the guys iv'e worked with but only when they are able to work on their own cars. Tuning remotely with someone who takes it to the shop to fix every little thing is never going to work.

Cars I've tuned here in person only take an afternoon whereas doing it remotely can take weeks.

And I really think a street tune is better than a dyno tune (low boost) ....FWIW.

9krpmrx8

iTrader: (46)

Yeah, it's pretty hard to determine what is a tuning issue and what is a hardware issue without having the car in front of you. And street tuning is better I agree, but finding a place to do that is pretty impossible around here.

JimmyBlack

It took about 5 iterations from the base tune to get my car dialled in remotely, but it definitely got there in the end. Felt like OEM - like every time you get in and drive you can just beat on it hard as soon as oil temp is up.

9k, stop holding out and post some updates on your thread.

9krpmrx8

iTrader: (46)

Yeah mine drives pretty awesome, especially in this cooler weather which is why I am afraid to mess with it. I have not posted updates because I just bought a 335i and well you know how the mod bug goes, :lol

But I do plan on getting some video and some track time soon. I have just been busy wrenching on other cars, trying to get other turbo 8's running, .

JimmyBlack

Flogging a dead Hoss?

9krpmrx8

iTrader: (46)

Yeah, changes man, installed new injectors today and tried to install the Sakebomb ignition kit but that didn't go well, it appears they only test fitted on cars with DSC.

But we will get it sorted.

RotaryMachineRx

iTrader: (1)

Or months if you throw a winter break in there

Nah Jk, I think we woulda had it sorted if I didn't come across a boost leak right before the snow hit.

discotech

I think over the summer I'm going to see if I can't get my hands on an adaptronic ecu and make use of the MAP sensor it has. The car runs fine with the cobb but the 9000 foot long intake path with the maf at the front kind of has me bummed over throttle response and closed loop operation (more oscillation of AFR fuel trims constantly over/under compensating than I'd like to see).

Brettus

iTrader: (2)

Throttle response or turbo lag ? Neither will be improved by changing the ECU . Also : AFRs will be way more erratic with an Adaptronic .
If you don't have a honeycomb maf straightener already , that would help a lot with consistency.