Turbo Efficiency Range for RX-8
01-07-2012, 09:58 PM
#326
Yes, finding their website was simple. But not the information as to why they use small turbos, which I could not find on their website. As for the information possibly not being available, I assumed it was since it is what MazdaManiac is recommending as a good read.
01-10-2012, 06:39 AM
#327
The other hidden problem is the heat an external wastegate must endure on a high output rotary.
I've destroyed 5 diaphragms on two separate Turbosmart wastegates over the last year. A wategate-preferred path puts most of the heat from the exhaust directly into the WG piston. I am trying a TiAL water-cooled gate now, but the next design will probably have two such gates.
When I was using an internal gate, I would destroy a turbine housing - cracking the wall between the main discharge and the WG flap - every couple of months.
I've destroyed 5 diaphragms on two separate Turbosmart wastegates over the last year. A wategate-preferred path puts most of the heat from the exhaust directly into the WG piston. I am trying a TiAL water-cooled gate now, but the next design will probably have two such gates.
When I was using an internal gate, I would destroy a turbine housing - cracking the wall between the main discharge and the WG flap - every couple of months.
01-28-2012, 03:09 AM
#332
i might even have posted in it..
but i will go back to ~ 7/10/11 and see if i can find a photo or more info on this non walburo or what ever pump..
thank you sir, may i have another!!
so miss this place...
beers
01-28-2012, 03:22 AM
#334
been away for a while.
what happened to the 50. was it a turbo problem? a joke, i kid. (i know you are na.) sorry, got to keep it on point.
i cant believe i have been gone for over 8 months. and still no real turbo or sc solution..
i know it can be done, but not plug and play...
the other car forums i am on right now are so demure.
beers
what happened to the 50. was it a turbo problem? a joke, i kid. (i know you are na.) sorry, got to keep it on point.
i cant believe i have been gone for over 8 months. and still no real turbo or sc solution..
i know it can be done, but not plug and play...
the other car forums i am on right now are so demure.
beers
01-28-2012, 03:30 AM
#335
#50 is gone for a mechanical problem to a joint. Unfortunately not car related!
Well, the go to guy is Elliott (turblown). His kits are as plug and play as it gets, the low mount variant doesn't even need the removal of our beloved OMP.
Shoot him a pm!
Well, the go to guy is Elliott (turblown). His kits are as plug and play as it gets, the low mount variant doesn't even need the removal of our beloved OMP.
Shoot him a pm!
01-28-2012, 03:41 AM
#336
i am sad, i missed the first fri race before the rolex24.
have been doing it for 9 years. weather always perfect.
then for the 24hr race, some form of suck... well this year!
24hr guys, have huge fun. fla usa! rocks. have big fun..
perfect weather.. birdy told me, fun stuff with bdc porting. am i wrong?
not a damn thing in this post has a thing to do with turbos, but really? is there one out there that be kinda sorta plug and play?
sorry, who is tuning this stuff?
beers
04-30-2013, 06:15 PM
#345
freshened engine, basically a factory REW keg with ceramic seals and porting, now making 480 hp/435 tq at the rear wheels .....
Originally Posted by HppRX7
Turbo: Custom Precision Turbo HP5530SP with .78 AR T3 exhaust housing twin scroll, the exhaust wheel is a 60mm/84trim.
CT
CT
I don't necessarily agree with those values, just making the point. There isn't enough exhaust energy at 1500 rpm, but you can get closer than you think. This is the dyno from the FD3 v-mount discussion in the GTX3576 thread, Precison turbo that is almost equal to the GTX3071R with only a .78 A/R divided T3 turbine on divided low mount and stock block 13B REW, full 20 psig boost @ 3100 using 110 octane gas
Last edited by TeamRX8; 01-24-2015 at 04:53 PM.
01-24-2015, 05:55 PM
#347
Stupid question;
How do you estimate these lines? How steep they are, and when they will level out(-ish?)
How do you estimate these lines? How steep they are, and when they will level out(-ish?)
01-24-2015, 07:50 PM
#350
While 60 lb/min is the rated limit for this turbo, I'll let someone else argue the accuracy of that assessment. If MM was still here that would be a certainty
If you had the fuel right and could hit 350 hp @ 3000 rpm (just an exaggerated example) and maintain it to rev limit by controlling boost is that a bad thing? Not everyone wants to push the engine to it's unreliable high rpm limit.
.
If you had the fuel right and could hit 350 hp @ 3000 rpm (just an exaggerated example) and maintain it to rev limit by controlling boost is that a bad thing? Not everyone wants to push the engine to it's unreliable high rpm limit.
.
Last edited by TeamRX8; 01-24-2015 at 07:54 PM.