Turbo on RX-8

***Herblenny*** · 07-10-2008, 11:08 PM

I figure we have a discussion about this....

Far as I know, I have no intention of putting turbo on the 8... But who knows... Maybe some people have put one on and made decent power.. But to me, I don't think its worth it.

I just read somewhere that someone dropped 13k to get a turbo put on their 8 by Mazsport... All I can say is, I rather spend 13K on another FD than to spend it on some turbo charger to make mid 300 HP... That kind of HP on high compression engine only means trouble in my mind... And how to they control it?? Who tunes it and how?? What kind of injectors and how do they control it??

I even read mazsport wanting to upgrade ignition system and such for what... mid 300 HP??? I don't know.. maybe because I been an 7 owner, I'm bit confused why people are spending insane money and not just put 13B-REW??? stock twins with stock ignition will make 320HP?? Iam I missing something here?? Why are so many 8 owners wanting to run turbo on fake peripherial port engines (non traditional)??? For what.. Maybe 100 HP?? Am I out of touch on whats going on with the 8?? Is there a reliable turbo out there??

Someone keep me updated!

85rx-7gsl-se · 07-10-2008, 11:25 PM

Didn't WE3RX-7(Spelling?) have a Turbo 8 at one point?

sumdeus · 07-11-2008, 05:42 AM

12k on a turbo? Not to sure about that, Mazsport has a kit that is $5500 and is supposed to be good for 300, but is capable up to 350-375 with injectors and coils. There is also a kit from Esmeril Racing, includes injectors. Greddy also has a kit that is essentially a bolt on for about 3500. It is a small turbo but 270-280 is what some people are getting out of the box with no major tuning other than the int-x.

***Herblenny*** · 07-11-2008, 09:14 AM

Far as I know, most of these require some sort of piggyback system to control. I've heard assessport you could get maps.. but in some ways, each set up will be slightly different and external environment will cause change of map.. So, I'm not sure if its well worked out system or not.. Of course I haven't driven one.. But I have seen one with a turbo couple of years ago.. but that car ran like ass.

Also, why coil upgrade?? RX8 coils are used by Le Mans 3 rotors making more HP NA at higher RPM?? I can't imagine stock coils are that bad that you need upgrading for 350RWHP?? Stock FD coils will handle over 400 with out any issues.. Some run over 500!

But most importantly, its the design of the engine that gets me... It lost so much exhaust pulse before it hit the turbo.. I'm guessing running anything large would be very laggy.....

For 5000+ you could get a new rebuilt 13B-REW and stock 99 280HP twins that will make easy 320-350 RWHP.... and have money for a PFC.. Turbos will be very responsive and proven by 3rd gen owners that it will last!

fikren · 07-11-2008, 09:32 AM

The intercepter-X is a popular piggyback for alot of people. I have not looked in to it much but I think it is programable with the software yourself rather than having to send off for new maps like assessport.

I've actually heard more bad about the Greddy turbo kit than good, enough that I don't want to touch it plus it is a smaller turbo and I think if you try running more than 5 psi or so you end up with some issues so it seems to be very limited for the money.

Apparently people have had a lot of problems with the 8's coils. I don't know for sure if this was just on early models and was later fixed or if it is still an issue with some people. Basic of it was that the coils were weak and the cause of some ignition breakup, weak spark, etc. That was why mazsport produced their setup.

One thing to remember about mazsport is they are insanly expensive on just about everything. I don't have any of their stuff, I've heard good things about them so not knocking their products but they are high high.

Personally I think it is a waste of money to mess with a turbo on the 8's engine. Doesn't really matter what setup you try to run the exhaust ports are still going to limit how effective its going to be. I guess you could seal up the stock ports and open up the two ports like the 13B-REW and you would have more gain but then might as well just put a 13B-REW, would probabley be cheaper in the long run. The money is an issue. You can buy a complete kit for the 7 from a good shop like A-Spec that will produce, when tuned, 5-600hp for the same money you will spend on the 8 for a possible 100hp gain if that.

What we need is a thread and some research on the 8's sensor system and electrical and options there for standalones or piggybacks because if I were going to try and dump the money in the 8 for a turbo system to produce any kind of worthwhile gains then I'd be dropping a 20b in it first. For the same price or close to it, you could run a NA 20B and probabley see better gains than a turbo'd 8 engine.

sumdeus · 07-11-2008, 04:19 PM

Anyone know of anyone that has does a 13B-REW swap?

djmtsu · 07-11-2008, 04:30 PM

I thought the 13B-RE (Cosmo) is becoming a popular option since it is easier to mount than the REW. Maybe not, but I swear I heard someone say that at DGRR this year.

fikren · 07-11-2008, 09:21 PM

Quote:

Originally Posted by djmtsu

I thought the 13B-RE (Cosmo) is becoming a popular option since it is easier to mount than the REW. Maybe not, but I swear I heard someone say that at DGRR this year.

I'm not sure DJ, haven't looked into it. In my mind if I'm going to get into an engine swap the 20B is the only option I would entertain. Right now I'm just driving the piss out of the car while its all under warranty.

I8U · 07-13-2008, 05:08 PM

12k is insane! I know BHR/MazdaManiac have developed a kit which uses most of the GReddy kit for 7k and it's putting down 370whp at 7psi.

BBullet8 · 07-13-2008, 08:03 PM

All I know is that speedforceracing has the best turbo out there for the rx8 it does 326hp and around 240ftlbs of torque. All of this is done with a very rich mixture and at 9psi. this turbo has also been on an 04 and the car has had the turbo on it for 60,000 miles and no major problems. there is no piggy back system with this it is a complete rewire which maybe why it has lasted so long it is around the 7,300 dollar mark but is way better than anything that mazspeed is making.

fikren · 07-14-2008, 12:27 AM

Quote:

Originally Posted by BBullet8

All I know is that speedforceracing has the best turbo out there for the rx8 it does 326hp and around 240ftlbs of torque. All of this is done with a very rich mixture and at 9psi. this turbo has also been on an 04 and the car has had the turbo on it for 60,000 miles and no major problems. there is no piggy back system with this it is a complete rewire which maybe why it has lasted so long it is around the 7,300 dollar mark but is way better than anything that mazspeed is making.

what do you mean complete rewire? you still have to have an ecu with some kind of tune on it. I'd be interested in any more info you can provide.

85rx-7gsl-se · 07-14-2008, 12:56 AM

Jeremy, it says the system uses a Powermod EMS... Not sure what that means but....

BBullet8 · 07-14-2008, 02:22 AM

it in no way uses the stock ecu. where some piggy back systems use some of the lower rpm range this ecu that they have uses nothing that is stock on the car. go here and check it out call them if you want they are really cool http://www.speedforceracing.com/prod...x8turbokit.php

fikren · 07-14-2008, 08:45 AM

Powermod EMS still uses the stock ecu.

http://www.dnamotorsport.com/PowerMod/PowerMod.html

discription mentions how it won't lose tune if you flash your ecu and how it intercepts from the ecu then sends data based on its tune to the engine.

Sounds interesting though.

***Herblenny*** · 07-14-2008, 12:37 PM

LOL!

Its so funny!! Please don't get in the hype of things... BBullet8.. I think I had this conversation with you regarding to this.. Trust me, its not worth it...

First, look at the dyno chart..

Their description states, "fire-breathing turbocharged 326WHP Rotary that screams to 10,000 rpms with 9 psi of intercooled boost."
They didn't even get close to 10K.. Why not?? Trust me, 10K, high compression, turbo charged engine, what 6 x 550cc injectors... Hmm.. all I can say is, I wouldn't drive that thing..

ECU:
Its a piggy back!!! Just like the back in the day Purple box by PFS for FDs. These are junk in my mind... except you could control timing (I don't think you could with PFS purple motor eaters).... But I don't think it does split and any compensation. JUNK!!!

Again, Why spend 7K to have something that you either have to have multiple maps or super conservative map to make measly 320HP. Also, by looks of it, its not coming on until 4+K RPM... Again, why not REW, twin turbo, fully programable ECU, and make 320 seq. turbo HP...

07-10-2008, 11:08 PM	#1
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 iTrader: (11) Posts: 644 Rep Power: 10	Turbo on RX-8 I figure we have a discussion about this.... Far as I know, I have no intention of putting turbo on the 8... But who knows... Maybe some people have put one on and made decent power.. But to me, I don't think its worth it. I just read somewhere that someone dropped 13k to get a turbo put on their 8 by Mazsport... All I can say is, I rather spend 13K on another FD than to spend it on some turbo charger to make mid 300 HP... That kind of HP on high compression engine only means trouble in my mind... And how to they control it?? Who tunes it and how?? What kind of injectors and how do they control it?? I even read mazsport wanting to upgrade ignition system and such for what... mid 300 HP??? I don't know.. maybe because I been an 7 owner, I'm bit confused why people are spending insane money and not just put 13B-REW??? stock twins with stock ignition will make 320HP?? Iam I missing something here?? Why are so many 8 owners wanting to run turbo on fake peripherial port engines (non traditional)??? For what.. Maybe 100 HP?? Am I out of touch on whats going on with the 8?? Is there a reliable turbo out there?? Someone keep me updated! __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny

07-11-2008, 09:14 AM	#4
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 iTrader: (11) Posts: 644 Rep Power: 10	Far as I know, most of these require some sort of piggyback system to control. I've heard assessport you could get maps.. but in some ways, each set up will be slightly different and external environment will cause change of map.. So, I'm not sure if its well worked out system or not.. Of course I haven't driven one.. But I have seen one with a turbo couple of years ago.. but that car ran like ass. Also, why coil upgrade?? RX8 coils are used by Le Mans 3 rotors making more HP NA at higher RPM?? I can't imagine stock coils are that bad that you need upgrading for 350RWHP?? Stock FD coils will handle over 400 with out any issues.. Some run over 500! But most importantly, its the design of the engine that gets me... It lost so much exhaust pulse before it hit the turbo.. I'm guessing running anything large would be very laggy..... For 5000+ you could get a new rebuilt 13B-REW and stock 99 280HP twins that will make easy 320-350 RWHP.... and have money for a PFC.. Turbos will be very responsive and proven by 3rd gen owners that it will last! __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny

07-11-2008, 09:32 AM	#5
fikren Rotary Fanatic Join Date: Feb 2008 Location: Chattanooga, TN iTrader: (7) Posts: 318 Rep Power: 17	The intercepter-X is a popular piggyback for alot of people. I have not looked in to it much but I think it is programable with the software yourself rather than having to send off for new maps like assessport. I've actually heard more bad about the Greddy turbo kit than good, enough that I don't want to touch it plus it is a smaller turbo and I think if you try running more than 5 psi or so you end up with some issues so it seems to be very limited for the money. Apparently people have had a lot of problems with the 8's coils. I don't know for sure if this was just on early models and was later fixed or if it is still an issue with some people. Basic of it was that the coils were weak and the cause of some ignition breakup, weak spark, etc. That was why mazsport produced their setup. One thing to remember about mazsport is they are insanly expensive on just about everything. I don't have any of their stuff, I've heard good things about them so not knocking their products but they are high high. Personally I think it is a waste of money to mess with a turbo on the 8's engine. Doesn't really matter what setup you try to run the exhaust ports are still going to limit how effective its going to be. I guess you could seal up the stock ports and open up the two ports like the 13B-REW and you would have more gain but then might as well just put a 13B-REW, would probabley be cheaper in the long run. The money is an issue. You can buy a complete kit for the 7 from a good shop like A-Spec that will produce, when tuned, 5-600hp for the same money you will spend on the 8 for a possible 100hp gain if that. What we need is a thread and some research on the 8's sensor system and electrical and options there for standalones or piggybacks because if I were going to try and dump the money in the 8 for a turbo system to produce any kind of worthwhile gains then I'd be dropping a 20b in it first. For the same price or close to it, you could run a NA 20B and probabley see better gains than a turbo'd 8 engine. __________________ 93 bb rx7 Destined to be the never ending project car or possible part source for the rotary rat rod 2008 40th Anniversary Edition RX-8 - bankruptcy owned me RE-Amemiya Super Dolphin Tail Exhaust-for sale AutoExe Front and Rear Strut Bars-for sale AutoExe Member Brace Set-for sale 2008 Honda CBR600RR - bankruptcy owned me Motivation axle/fork/barend/frame sliders ASV "unbreakable" shorty levers Tripage Integrated Tailight and Adj FE Proton Fushmounts Akrapovic Hex Carbon/TI Slip On Sato Rearsets Last edited by fikren; 07-11-2008 at 09:35 AM..

07-11-2008, 04:30 PM	#7
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (10) Posts: 4,043 Rep Power: 21	I thought the 13B-RE (Cosmo) is becoming a popular option since it is easier to mount than the REW. Maybe not, but I swear I heard someone say that at DGRR this year. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

07-13-2008, 05:08 PM	#9
I8U KONI Challenge Crew Join Date: Mar 2008 Location: Goldsboro, NC iTrader: (0) Posts: 126 Rep Power: 17	12k is insane! I know BHR/MazdaManiac have developed a kit which uses most of the GReddy kit for 7k and it's putting down 370whp at 7psi. __________________ 04 TiGray RX8 MT, LS2 coil setup, 3" midpipe, HKS Hi-power 3" exhaust, TEIN S-Techs, Hotchkis Adj F/R sways, K&N Typhoon V2, Steel braided brake lines, Redline drivetrain fluids, ATE Super Blue brake fluid, Cobalt XR2/GTS brake combo, MB Motorpsorts Weapons 18x9 +45 offset, 275/35's I Support the KONI Sports Car Challenge!

07-11-2008, 05:42 AM	#3
sumdeus Rotary Fanatic Join Date: Mar 2008 Location: Florence, SC iTrader: (0) Posts: 148 Rep Power: 0	12k on a turbo? Not to sure about that, Mazsport has a kit that is $5500 and is supposed to be good for 300, but is capable up to 350-375 with injectors and coils. There is also a kit from Esmeril Racing, includes injectors. Greddy also has a kit that is essentially a bolt on for about 3500. It is a small turbo but 270-280 is what some people are getting out of the box with no major tuning other than the int-x.

07-11-2008, 04:19 PM	#6
sumdeus Rotary Fanatic Join Date: Mar 2008 Location: Florence, SC iTrader: (0) Posts: 148 Rep Power: 0	Anyone know of anyone that has does a 13B-REW swap?

07-13-2008, 08:03 PM	#10
BBullet8 The Newbie Join Date: Feb 2008 Location: nashville iTrader: (0) Posts: 13 Rep Power: 0	All I know is that speedforceracing has the best turbo out there for the rx8 it does 326hp and around 240ftlbs of torque. All of this is done with a very rich mixture and at 9psi. this turbo has also been on an 04 and the car has had the turbo on it for 60,000 miles and no major problems. there is no piggy back system with this it is a complete rewire which maybe why it has lasted so long it is around the 7,300 dollar mark but is way better than anything that mazspeed is making.

07-14-2008, 02:22 AM	#13
BBullet8 The Newbie Join Date: Feb 2008 Location: nashville iTrader: (0) Posts: 13 Rep Power: 0	it in no way uses the stock ecu. where some piggy back systems use some of the lower rpm range this ecu that they have uses nothing that is stock on the car. go here and check it out call them if you want they are really cool http://www.speedforceracing.com/prod...x8turbokit.php

07-14-2008, 08:45 AM	#14
fikren Rotary Fanatic Join Date: Feb 2008 Location: Chattanooga, TN iTrader: (7) Posts: 318 Rep Power: 17	Powermod EMS still uses the stock ecu. http://www.dnamotorsport.com/PowerMod/PowerMod.html discription mentions how it won't lose tune if you flash your ecu and how it intercepts from the ecu then sends data based on its tune to the engine. Sounds interesting though. __________________ 93 bb rx7 Destined to be the never ending project car or possible part source for the rotary rat rod 2008 40th Anniversary Edition RX-8 - bankruptcy owned me RE-Amemiya Super Dolphin Tail Exhaust-for sale AutoExe Front and Rear Strut Bars-for sale AutoExe Member Brace Set-for sale 2008 Honda CBR600RR - bankruptcy owned me Motivation axle/fork/barend/frame sliders ASV "unbreakable" shorty levers Tripage Integrated Tailight and Adj FE Proton Fushmounts Akrapovic Hex Carbon/TI Slip On Sato Rearsets

07-14-2008, 12:37 PM	#15
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 iTrader: (11) Posts: 644 Rep Power: 10	LOL! Its so funny!! Please don't get in the hype of things... BBullet8.. I think I had this conversation with you regarding to this.. Trust me, its not worth it... First, look at the dyno chart.. Their description states, "fire-breathing turbocharged 326WHP Rotary that screams to 10,000 rpms with 9 psi of intercooled boost." They didn't even get close to 10K.. Why not?? Trust me, 10K, high compression, turbo charged engine, what 6 x 550cc injectors... Hmm.. all I can say is, I wouldn't drive that thing.. ECU: Its a piggy back!!! Just like the back in the day Purple box by PFS for FDs. These are junk in my mind... except you could control timing (I don't think you could with PFS purple motor eaters).... But I don't think it does split and any compensation. JUNK!!! Again, Why spend 7K to have something that you either have to have multiple maps or super conservative map to make measly 320HP. Also, by looks of it, its not coming on until 4+K RPM... Again, why not REW, twin turbo, fully programable ECU, and make 320 seq. turbo HP... __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny