|
you can go up a bit more, try it at 9 or 10 psi.
the numbers may not be huge, but i bet it feels a heck of a lot faster than before :) |
Yes it is night and day :)
Bit dissapointed about how she only holds 8 psi to 5000 ish - perhaps there is more i can do with the boost controller ...... |
Yeah some BC tuning should help you out - getting 10 PSI down low with the Greddy shouldn't be hard.
|
You should see boost drop to 6 psi range in the upper rpms unless your wheel can flow a bit more.
|
Brettus
Do you think the turbo and the manifold of a Mazsport Type 3 clear the steering on our RHD RX8? I wonder how you got your greddy around the steering... |
no idea about the Mazsport . The Greddy was a mission to get around it but doable . If you have the Greddy kit i'm more than happy to explain how I did it - without the unecessary stuff i did .....
|
So why are they calling it a NO RX8? When will it become a YES RX8?
|
Someone asked me if he could have it seeing as it was no-ones' RX8 ... smart arse!
Have managed to get boost up a little in the higher rpm range (staying at 8psi) by increasing the gain . Now am at8psi at 6000 and 7psi at 7000.What that does however is create a bigger spike earlier on . Just found a note on another thread where MM says the stock spring on the actuator is not stiff enough to hold high boost past 6500 which would explain what is going on . Will look into what I can do there ..... |
look at the plate it mean number one rx8
|
Originally Posted by BDC
(Post 2725589)
Hi Jim,
The 'funny feelings' thing he's referring to is what I guessed was a lack of spark energy on the back-end. Turned out I was right. IIRC, the dwell was originally set to 2ms by Scott but then I left it around 3.2ms. Not being familiar with the hardware then, I decided not to experiment with it. B Stole this quote from the Esmeril thread - seems to back up what I was suggesting earlier . It seems Scott originally set the interceptor x dwell times to 2.0ms for ALL applications. Stock dwell , if my theory on the tables is correct is a lot higher than that and that would explain why many people did not have problems with the Mazsport coils who did not have the interceptor x . This is just speculation from third party hearsay and the interpretation of the stock dwell tables that Hymee & I came up with . BUT , it would explain a lot of the issues people had with those coils earlier on . |
Originally Posted by Brettus
(Post 2723616)
Yes it is night and day :)
Bit dissapointed about how she only holds 8 psi to 5000 ish - perhaps there is more i can do with the boost controller ...... |
Yep - figured that out from an old post of yours :)
am going to adjust the actuator arm as much as i can and see what I can get . I'm only aiming for 8psi and that might just get me close ..... |
OK did that - adjusted the actuator right in as far as i could .
Without boost controller it now runs at 7 psi tapering to 6.3psi at 8000 . With boost controller i have it at 8psi through to about 6500 then 7.0 at 7600 and 6.3 at 8000 . Mass airflow is now up around 315 g/s . I'm happy with that - it will be up around 270 -280hp which was what i was hoping for . Don't seem to be getting a lot of benefit from the upgraded cold side . I wont ever know unless i put the bigger actuator on i guess . also have noticed secondary injectors are at 100% duty cycle so i dont think I should go any further without bigger injectors ..... |
That is still VERY respectable.
Yeah for power. |
good job.
done right.. beers :beer: |
thanks guys .... :)
|
will any of these work?
|
Yeah most of them will - might have to fab a braket; but that isn't too hard.
|
Originally Posted by Kane
(Post 2726547)
Yeah most of them will - might have to fab a braket; but that isn't too hard.
|
Have to measure to see if they clear; with a little 110v welder and some crappy skills; you can make your own faster - or modify one of theirs if it doesn't fit.
|
MM gave me some pointers on the Greddy cold side upgrade thread . So I spent the day playing :)
This is what I learnded *I need to run the turbo at a higher pressure to stay in it's efficiency range for longer. *also need to shift earlier - around 7500 because the turbo goes out of its efficiency range before then. *With the wastegate adjusted ,the turbo holds 9.5 psi at it's outlet all the way to the redline ......... But at as the revs go up the losses through the system reduce that pressure by as much as 2.5 psi at the manifold . *Mashing the throttle at 10 psi in 2nd gear will cause fast and furious tokyo drifts . Note to self -need to learn throttle control . think I must be awfully close to 300hp now |
Respect (Jamacian Accent) F&F driving
I rarely go WOT anymore - no need 99.99% of the time. |
Originally Posted by Brettus
(Post 2727797)
MM gave me some pointers on the Greddy cold side upgrade thread . So I spent the day playing :)
This is what I learnded *I need to run the turbo at a higher pressure to stay in it's efficiency range for longer. *also need to shift earlier - around 7500 because the turbo goes out of its efficiency range before then. *With the wastegate adjusted ,the turbo holds 9.5 psi at it's outlet all the way to the redline ......... But at as the revs go up the losses through the system reduce that pressure by as much as 2.5 psi at the manifold . *Mashing the throttle at 10 psi in 2nd gear will cause fast and furious tokyo drifts . Note to self -need to learn throttle control . think I must be awfully close to 300hp now If you're shifting at 7500, you're going to find yourself still at 250 range :P The amount of time you're spending trying to figure out how to bandaid it would be better spent drooling over the 3071R |
I beg to differ ......
https://www.rx8club.com/attachment.p...4&d=1134421485 Yes the bigger turbo would be awesome - but i'm having plenty of fun with what i already have and depending on how long it lasts i may just keep rebuilding it instead of upgrading |
| All times are GMT -5. The time now is 12:07 PM. |
© 2024 MH Sub I, LLC dba Internet Brands