2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

gonna turbo my gxl 1989 rx7

Thread Tools
 
Search this Thread
 
Old 07-06-10 | 10:55 PM
  #1  
luis911's Avatar
Thread Starter
Full Member
iTrader: (2)
 
Joined: Aug 2009
Posts: 162
Likes: 0
From: New York
gonna turbo my gxl 1989 rx7

think i'll get results by just slapping on a turbo and using stock ecu? just want like 5 psi? my cousin has an extra one with the downpipe, all i need is the stock intercooler and the piping right?

Last edited by luis911; 07-06-10 at 11:01 PM.
Old 07-07-10 | 11:30 AM
  #2  
Hazard15301's Avatar
Rotor Junkie

iTrader: (5)
 
Joined: Sep 2006
Posts: 1,007
Likes: 1
From: Washington, PA
Heh. No.

It is actually a huge investment of both time and money, custom fabrication, and headaches.

Read: http://www.aaroncake.net/RX-7/naturbo.htm
Old 07-07-10 | 12:13 PM
  #3  
Scrims's Avatar
Hide the pinball machine

iTrader: (2)
 
Joined: Aug 2007
Posts: 461
Likes: 0
From: Sammamish, wa
Originally Posted by luis911
think i'll get results by just slapping on a turbo and using stock ecu? just want like 5 psi? my cousin has an extra one with the downpipe, all i need is the stock intercooler and the piping right?
Oh you'll get results alright. Those results being a blown engine.

AaronCake's way is one way to go about it but there are others. Do a search and check out the faq. It's been covered too many times to count.
Old 07-07-10 | 01:28 PM
  #4  
LunchboxCritter's Avatar
Disco Biscuit

iTrader: (9)
 
Joined: Dec 2006
Posts: 755
Likes: 1
From: Florida
I would recommend doing a complete engine and drivetrain swap. If you want turbo then you need all of the turbo parts along the drivetrain or you'll just be replacing the non turbo parts like crazy.
Old 07-07-10 | 02:08 PM
  #5  
luis911's Avatar
Thread Starter
Full Member
iTrader: (2)
 
Joined: Aug 2009
Posts: 162
Likes: 0
From: New York
I dunno i guess I should just leave my car alone, engine is built perfectly with 50,000 miles on odometer and i pretty much never have any problems to start it up, and good idle. im thinking slapping a turbo and all that will just bring down my reliability. even if I only want like 3-5 pounds. am I right?
Old 07-07-10 | 02:13 PM
  #6  
Hazard15301's Avatar
Rotor Junkie

iTrader: (5)
 
Joined: Sep 2006
Posts: 1,007
Likes: 1
From: Washington, PA
Yea... N/As are N/As. Not built built for the HP that a turbo will produce. Just "slapping on a turbo kit" on an otherwise stock N/A will result in destruction, period. There are other smaller things you can do to increase horsepower, just search.
Old 07-07-10 | 02:34 PM
  #7  
luis911's Avatar
Thread Starter
Full Member
iTrader: (2)
 
Joined: Aug 2009
Posts: 162
Likes: 0
From: New York
no emmisions, straight pipe, i mean how much more significant gains can i get without having to rebuild my motor?
Old 07-07-10 | 02:43 PM
  #8  
NoPistons!'s Avatar
Tango Down

iTrader: (3)
 
Joined: Sep 2008
Posts: 2,895
Likes: 2
From: SC/NC
Not much. Either swap and if it's not your dd, go ahead and and go forth treating this motor like n/a spec parts and electronics on a TII keg.


It's a higher compression block. Just remove the aux port sleeves, slap TII stuff on it with matching electronics/injectors and you're good.

You can use a 12:1 rising rate fpr/fmu on stock injectors with a different fuel pump for that low amunt of boost on said turbo. You'll be pushing the **** out of your injectors and it's a jank setup but it should work for a while if you dont rape it all the time. It's not theory, it's been done. You'll spend hours searching dead end links but i've found stuff at random showing you can do stuff. The problem is, the ecu, map and airflow meter are not engineered to see boost. I mean, i've seen people run around 5 psi stock n/a electronics but it was a temp setup til their TII stuff came in.
Old 07-07-10 | 03:51 PM
  #9  
KhanArtisT's Avatar
Former FC enthusiast
iTrader: (2)
 
Joined: Dec 2004
Posts: 2,841
Likes: 2
From: Northern VA
Originally Posted by Hazard15301
Yea... N/As are N/As. Not built built for the HP that a turbo will produce. Just "slapping on a turbo kit" on an otherwise stock N/A will result in destruction, period. There are other smaller things you can do to increase horsepower, just search.
So true bro, basically if you have an N/A you are destined to stay N/A forever. Don't even try to change the engine or add a turbo, it just won't work. Just enjoy it for what it is.
Old 07-07-10 | 04:25 PM
  #10  
FelixIsGod29X's Avatar
Manual Rack
iTrader: (50)
 
Joined: Aug 2005
Posts: 3,652
Likes: 1
From: Wanaque NJ
Originally Posted by KhanArtisT
So true bro, basically if you have an N/A you are destined to stay N/A forever. Don't even try to change the engine or add a turbo, it just won't work. Just enjoy it for what it is.
Old 07-07-10 | 07:17 PM
  #11  
*TOUCH*'s Avatar
Project P --- Pedospeed

iTrader: (29)
 
Joined: Apr 2007
Posts: 1,235
Likes: 0
From: Norfolk, VA
^^I 2nd that. you can go anyway you want: built NA, 6 port turbo, TII swap, v8 swap, 20b....depends on your wallet mostly...
Old 07-07-10 | 07:53 PM
  #12  
-Crash-'s Avatar
89FC
 
Joined: Mar 2010
Posts: 545
Likes: 0
From: Bay Area, Cali.
If your rotary is doing great then don't **** with it too much, I would suggest just a few things such as: intake (make your own cold air or fresh air box), exhaust, 4:33 rear end gears, light flywheel, clutch, brakes, suspension, Rtek 2.1, and a tune. You'll be very surprised by the outcome.
Old 07-07-10 | 08:04 PM
  #13  
luis911's Avatar
Thread Starter
Full Member
iTrader: (2)
 
Joined: Aug 2009
Posts: 162
Likes: 0
From: New York
yea i know, I dont think i should mess with turbo then, its my college and work daily driver. for using an NA rx7 as a daily driver, what would you look out for, as potential failures, what are the average upkeeps on the car?
Old 07-07-10 | 08:13 PM
  #14  
KhanArtisT's Avatar
Former FC enthusiast
iTrader: (2)
 
Joined: Dec 2004
Posts: 2,841
Likes: 2
From: Northern VA
Originally Posted by FelixIsGod29X
Its true, an NA car will NEVER be turbo. It will ALWAYS be inferior to a turbo model car. You can put a TII engine in or boost the engine but it will never run right.

Just buy an intake, exhaust, some coilovers and enjoy the car. Don't ever dream about turbo, EVER.
Old 07-07-10 | 10:24 PM
  #15  
NI_Racing's Avatar
Racer
iTrader: (4)
 
Joined: Apr 2009
Posts: 219
Likes: 0
From: Fl
^ you guys are too funny. A buddy of mine grabbed up some T2 stuff from here, ebay and around town. For about 600 bucks he threw together an s5 NA Turbo. Ran it on 8 pounds and beat the hell outta it. The Ebay turbo exploded... so he grabbed up a borg warner 70 trim. Threw that on, and ran 10 pounds on the STOCK ECU! 255 pump, 550 primaries and 680 secondaries, put down 239WHP. Had some issues of course. Car wasnt reliable. He beat on it, slid it, dragged it, and just had to much fun with it. After a FEW MONTHS, he blew it up... coolant seal. He swapped in a street ported S4 NA, threw on the S5 front cover, reconnected all the turbo stuff, ported the wastegate, and is now running a small shot of nitrous on top of the 10 pounds. Reliability has gotten a bit better as he's not beating the **** outta this one (still slides and drags it tho) and he has cleaned up alot of the quick fix stuff he did to get it together the 1st time. Point is, it worked. For alot less than a T2 swap. Was faster off the bat than a stock T2 swap. and is having fun doing his own thing off in the "you better not even dream of that" realm.

He has a haltech he will be installing soon, and hes changing a few things here and there, but all in all, he loves the car (when it runs) and is enjoying his build, especially since "it cant be done".

Oh one more thing. Neither of these were fresh rebuilds. Both engines he used were DD engines he had that had well over 100k on em. just food for thought... for all you dreamers.

Last edited by NI_Racing; 07-07-10 at 10:27 PM.
Old 07-07-10 | 10:51 PM
  #16  
Cordt's Avatar
Full Member
 
Joined: Apr 2010
Posts: 207
Likes: 0
From: Alberta Canada
Originally Posted by luis911
yea i know, I dont think i should mess with turbo then, its my college and work daily driver. for using an NA rx7 as a daily driver, what would you look out for, as potential failures, what are the average upkeeps on the car?
just keep up on maintainence. unlike piston engines, overheating just once pretty much means a rebuild. check your coolant hoses and flush the system before it gets nasty.
and since your oil is constantly being injected into the combustion chambers you need to keep it relatively clean.
Old 07-07-10 | 11:19 PM
  #17  
*TOUCH*'s Avatar
Project P --- Pedospeed

iTrader: (29)
 
Joined: Apr 2007
Posts: 1,235
Likes: 0
From: Norfolk, VA
Originally Posted by NI_Racing
^ you guys are too funny. A buddy of mine grabbed up some T2 stuff from here, ebay and around town. For about 600 bucks he threw together an s5 NA Turbo. Ran it on 8 pounds and beat the hell outta it. The Ebay turbo exploded... so he grabbed up a borg warner 70 trim. Threw that on, and ran 10 pounds on the STOCK ECU! 255 pump, 550 primaries and 680 secondaries, put down 239WHP. Had some issues of course. Car wasnt reliable. He beat on it, slid it, dragged it, and just had to much fun with it. After a FEW MONTHS, he blew it up... coolant seal. He swapped in a street ported S4 NA, threw on the S5 front cover, reconnected all the turbo stuff, ported the wastegate, and is now running a small shot of nitrous on top of the 10 pounds. Reliability has gotten a bit better as he's not beating the **** outta this one (still slides and drags it tho) and he has cleaned up alot of the quick fix stuff he did to get it together the 1st time. Point is, it worked. For alot less than a T2 swap. Was faster off the bat than a stock T2 swap. and is having fun doing his own thing off in the "you better not even dream of that" realm.

He has a haltech he will be installing soon, and hes changing a few things here and there, but all in all, he loves the car (when it runs) and is enjoying his build, especially since "it cant be done".

Oh one more thing. Neither of these were fresh rebuilds. Both engines he used were DD engines he had that had well over 100k on em. just food for thought... for all you dreamers.
...i actually have alot of questions about this post but i REALLY dont wanna open up this can of worms....someone else please take this one...
Old 07-07-10 | 11:38 PM
  #18  
NI_Racing's Avatar
Racer
iTrader: (4)
 
Joined: Apr 2009
Posts: 219
Likes: 0
From: Fl
^ i was waiting for someone who doubts. This forum seems full of people who dont believe things can be done.

This is all true to the best of my knowledge. Its what i witnessed and was told. I was at the shop when the car was dyno'd. Ive been working with and bouncing ideas off the owner with my own NA T2 build, tho mine is going a different route. There are plenty of people around here who have seen the car. He ran low 9's in the 8th at an event called street heat. The point isnt to argue the validity of one build over another tho. My point was merely that there are alot of ways to get somewhere.... be it the right way, or the easy way, you can still get there. And there are alot of people running NA turbo setups now, which before Aaron, people here said couldnt be done. Argue the details of my post, it doesnt make a difference to me. I know what the car put down as i was there. To the OP, you can do anything you want, its your car, and you have lots of options to chose. Which route you go in your build is up to you, your skills, and your pockets.

Looking at a post on a different forum i feel i noticed my dislexia kicked in. My buddy is running 860cc secondaries, nnot 680s.

http://www.tamparacing.com/forums/ma...n-dummies.html

Last edited by NI_Racing; 07-07-10 at 11:43 PM.
Old 07-07-10 | 11:49 PM
  #19  
2slow4stock's Avatar
The waiting game......
iTrader: (18)
 
Joined: Feb 2005
Posts: 2,275
Likes: 3
From: North Aurora
This thread is a bunch of lol's. Who would ever want a turbo on a n/a block... Ohh no. Bad idea...
Old 07-08-10 | 12:07 AM
  #20  
MadScience_7's Avatar
Too old for this
 
Joined: Oct 2009
Posts: 488
Likes: 0
From: Denver, CO
I'll be doing it, once I get the money to do it right. I'm budgeting about $3k for the whole thing. Probably won't happen till next summer.
Old 07-08-10 | 01:04 AM
  #21  
Hazard15301's Avatar
Rotor Junkie

iTrader: (5)
 
Joined: Sep 2006
Posts: 1,007
Likes: 1
From: Washington, PA
Originally Posted by KhanArtisT
So true bro, basically if you have an N/A you are destined to stay N/A forever. Don't even try to change the engine or add a turbo, it just won't work. Just enjoy it for what it is.
I didn't mean to infer that. I only meant to say that the way Mazda intended it, N/As were supposed to be just that, naturally aspirated. They were not built to handle the extra power that turbos produce. However, that's not to say that it cannot be done. With careful planning, fabrication, and tuning (basically, with enough money), it can be done rather successfully (look at AaronCake's build).
Old 07-08-10 | 05:31 AM
  #22  
NoPistons!'s Avatar
Tango Down

iTrader: (3)
 
Joined: Sep 2008
Posts: 2,895
Likes: 2
From: SC/NC
Mazda didn't intend to make a production 4 rotor motor to put into vehicles so we could buy the jdm swap off ebay either.

That doesn't make them right! Lol.


It's an engine. it haz exhaust. It has intake. Put a turbo between the two with the right fuel per amount of boost, try not to break **** and you're good.

Khanartist always makes me lol.

I know he's getting fed up of reading this crap too.

NA-T section? Anyone?

I'm up for it.
Old 07-08-10 | 10:32 AM
  #23  
gear_grinder's Avatar
Don't hate my V8
iTrader: (4)
 
Joined: Mar 2006
Posts: 1,129
Likes: 0
From: Cornfield, Indiana
if you want the same power as a mild turbo setup do this

header
full exhaust
washerbottle area cold air intake
tuneup (plugs and wires)
retard the timing manualy aprox 3-5 degrees
run trailing plugs in all 4 positions
TII fuel pump
50-75 wetshot

viola, 200hp barrier broken...
Old 07-08-10 | 11:23 AM
  #24  
fc323's Avatar
Senior Member
 
Joined: Jan 2010
Posts: 324
Likes: 1
From: los angeles
wouldnt putting a turbo an the na rx7 be like slapping a turbo on a civic?
i mean both have pretty high compression(civic being a little higher)
both have catastrophic failure if pushed too much
im pretty sure they said to not put turbos on civic neither but look at all of the turbo kits for them now
Old 07-08-10 | 12:15 PM
  #25  
Scrims's Avatar
Hide the pinball machine

iTrader: (2)
 
Joined: Aug 2007
Posts: 461
Likes: 0
From: Sammamish, wa
Originally Posted by fc323
wouldnt putting a turbo an the na rx7 be like slapping a turbo on a civic?
i mean both have pretty high compression(civic being a little higher)
both have catastrophic failure if pushed too much
im pretty sure they said to not put turbos on civic neither but look at all of the turbo kits for them now
comparing an rx7 to a civic is a terrible, terrible idea here.

No, it is not the same. The rotary engine can't be compared to the piston engine.

Put your flame suit on.



All times are GMT -5. The time now is 11:19 AM.