Brettus

iTrader: (2)

BTW - I only used the dynojet setting as a windup . But seeing as you guys are doing it now as well and we need as much help as we can get - That is the new std RX8 club setting

wcs

iTrader: (2)

LOL another Brettspeed standard

Brettus

iTrader: (2)

Stock centre port runner is back in . Testing today .

FazdaRX_8

iTrader: (1)

excited for results!!!

Brettus

iTrader: (2)

Results are in .....

Green line - modified port runner , 60-1 compressor
Red line - stock port runner , 60-1 compressor
Blue line - stock port runner , T04e 57 trim compressor



So :
*Modified runner had little effect except in initial spoolup of turbo where it had a negative effect.
*57 trim wheel spools up way quicker
*60-1 wheel has more top end (as you would expect)

Also:
virtual dyno confirms what we see on the load chart.

wcs

iTrader: (2)

Why does the load axis only go to 100?

Too bad your idea didn't pan out but big thumbs up to trying something new.

Brettus

iTrader: (2)

Good spotting - yeah that is a quirk with ME . For some reason loads are shown 1/2 their true value . So just double the loads shown for a true reading.

And thanks , yeah it made a LOT of work for me to try this . I'm very Disappointed.

olddragger

iTrader: (3)

win some--loose some.
Sorry it wasn t a win for you--you tried hard.

FazdaRX_8

iTrader: (1)

So sounds like your gonna leave the 57 trim?

Brettus

iTrader: (2)

too late for that - I have a 60-1 in there .
The 57 does seem like it was a better choice although I still have this nagging doubt there is more to it (the reduced response) than just the wheel swap .

9krpmrx8

iTrader: (46)

Did you have turbo balanced when you did the swap?

Brettus

iTrader: (2)

I had a guy that does nothing but rebuild turbos do the job . He has an excellent reputation so I'm sure he did whatever was necessary.

TeamRX8

iTrader: (25)

I'll take the blue pill





.

Brettus

iTrader: (2)

So would I ...

Although a trip to the dyno may just make the red pill a little more palatable

9krpmrx8

iTrader: (46)

Cool, I am sure he has the tooling to do that then. I just ask because I have found a lot of turbo re-builders here do not actually have a balancing machine and anytime you make a change like that, the turbo should be rebalanced.

Brettus

iTrader: (2)

Just comparing spoolup with a couple of other turbo setups seems to suggest mine is on par with what others with the 60-1 are getting so that answers that question.

olddragger

iTrader: (3)

I have a feeling that you may have underestimated the affect of a taller final gear ratio on the feel of the car.??
I do know that when I put shorter track wheels on you can rally tell the difference.
In my drag racing days..gearing was a huge part of the package.

Brettus

iTrader: (2)

I know what you are saying but the proof is in the load chart shown earlier . The 57 trim was just better suited to the power range I am operating in .
I think this is valuable information for anyone wanting to upgrade the Greddy - don't go for a 60-1 . T04e57 or 60 trim is preferable.

FazdaRX_8

iTrader: (1)

you really should include a turbine spec, because that mated with a t4 1.00 ar wouldn't be great at all....

Brettus

iTrader: (2)

Did a few tweaks . Smiling again

Other than response - That red pill is looking pretty good now .
57 trim old engine - blue
60-1 new engine - red



Ummmmmm - yeah it's quick !

Brettus

iTrader: (2)

Can anyone say ........................432whp ? LOL

The bulge at 7500 does look suspect but I can say it feels VERY strong between 7000 and 8000 .

yomomspimp06

looks good.

FazdaRX_8

iTrader: (1)

looks good, when I get some logs you can help me with that top end too, I seemed to be getting bulges then too.

looks like you flat line with 200% calc load for a bit then comes down.

is that first spike your wastgate opening? maybe you could touch up the boost controller?

olddragger

iTrader: (3)

Glad it is getting better
Do you run the VDI?

Brettus

iTrader: (2)

Yeah - this the first time I've reached that 200% load barrier . Afrs look fine and timing is locked at 8 degrees at that point . Should be ok........... I hope .

Yeah , spike is the WG . Iv'e noticed it is harder to control the spike on the 60-1 than the 57 . Perhaps because the max boost is reached at a higher rpm with the 60-1.
Have played with it till the cows came home and that's as good as I can get it .