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

RWHP question?

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Old Apr 28, 2012 | 06:29 PM
  #26  
RotaryEvolution's Avatar
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ebay mods list states his car should be about 338WHP with the typhoon intake kit, ball and spring boost controller, chinese exhaust kit and turbo timer. he also has plenty of stickers to make up for the rest.
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Old Apr 28, 2012 | 07:38 PM
  #27  
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I feel bad for your friend if he thinks he's making over 300whp.
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Old Apr 28, 2012 | 08:20 PM
  #28  
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Boosted. I got BLOWN!!!
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Nossss!!!!
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Old Apr 28, 2012 | 08:47 PM
  #29  
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K thanks guys... I guess there was something wrong with his car. I'm looking to go to the track next weekend. I'll let you guys know what times I'm pulling.
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Old Apr 28, 2012 | 08:55 PM
  #30  
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Didnt read the second page of posts lol...I think he had the dyno sheet with those numbers. But he recently purchased the car and the shop working on the car before he bought it isnt very trust worthy in my opinion. Not going to mention any names lol. So either they bullshited the duno sheet and lied to him or his car has an issue..
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Old Apr 28, 2012 | 10:27 PM
  #31  
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Originally Posted by 3xBlack Vert-top Mike
I'm looking to go to the track next weekend. I'll let you guys know what times I'm pulling.
I already know what you will be pulling. You will be pulling your blown engine out of the car to rebuild it, and you may also be pulling your turbo for a rebuild. Your fuel system is NOT sufficient for 15psi on an extended port 13B, and the stock turbo is entirely too small to flow that kind of volume at 15psi. I highly recommend that you fix the fuel and turbo issues prior to racing the car.

FYI an engine rebuild is about $1,200 to $6,000, depending on what parts are ruined and how much work you can do yourself.

Originally Posted by Furb
All this fuss about not running a stock turbo that high..

I ran stock turbo at 14-15psi for 3+ years
... not on an extended port 13B with 4x720cc injectors and a band-aid fuel control system.
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Old Apr 28, 2012 | 10:40 PM
  #32  
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Originally Posted by 3xBlack Vert-top Mike
So either they bullshited the duno sheet and lied to him or his car has an issue..
A street ported 13B with an upgraded turbo at 12psi will typically dyno in the 325-375hp range. I have no explanation why your car was "faster" than his, and I have even less explanation as to why your engine has not blown yet.
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Old Apr 29, 2012 | 11:10 AM
  #33  
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Originally Posted by Evil Aviator
I already know what you will be pulling. You will be pulling your blown engine out of the car to rebuild it, and you may also be pulling your turbo for a rebuild. Your fuel system is NOT sufficient for 15psi on an extended port 13B, and the stock turbo is entirely too small to flow that kind of volume at 15psi. I highly recommend that you fix the fuel and turbo issues prior to racing the car.

FYI an engine rebuild is about $1,200 to $6,000, depending on what parts are ruined and how much work you can do yourself.


... not on an extended port 13B with 4x720cc injectors and a band-aid fuel control system.
Dude relax its not your motor anyway...haha!!! no reason to get all upset. Im simply stating what has been going on with the car. I know how much it costs to rebuild a rotary. The only cars Ive ever owned had been rotary cars, well besides my daily driver (GTO). The only reason im asking questions about this one is because my cars were either N/A with stock computer or big aftermarket turbo with microtech. Im currently in school so I cant afford to do the aftermarket set ups right now so im trying to get advice on stretching the current/stockish setup. Anyway......maybe the car has bigger injectors than Ive been told. It runs pretty rich/conservative with the Rtek1.8 (on 15PSI). Can the stock turbo be rebuilt to be efficient at 15PSI?

Originally Posted by Evil Aviator
A street ported 13B with an upgraded turbo at 12psi will typically dyno in the 325-375hp range. I have no explanation why your car was "faster" than his, and I have even less explanation as to why your engine has not blown yet.
Im sure he can reach those numbers but like myself and others have said maybe I pulled on him because his car isnt running right. As in something could have happened to it between the time of dyno and the time we raced. My car hasnt blown because I dont romp on it around every damn corner and I take care of it.
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Old Apr 29, 2012 | 02:03 PM
  #34  
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just trying to save you some headache and the near future blown motor if you keep on this path.

some people have managed with similar setups for a number of years, do not think you can do the same because those people were lucky to have had the engine stay together for that long.

for example i had a customer come in with ignition timing advanced a full tooth, running almost 30* of advance FURTHER than stock timing settings, that is OVER 70* timing advance... they took me out and i could hear a popcorn maker under the hood and that car ran that way for many months! it was a ticking timebomb and it only took me 3 minutes to fix.

the stock turbo is only good for 285WHP, do not let anyone try to trick you into thinking otherwise.


the main issue with piggybacks and/or the stock ECU with the FCD is you have zero way of controlling timing and the FCD causes a further split in the proper timing curve of the engine for smooth usage throughout the whole RPM range. we can't reprogram these turd ECUs and piggybacks aren't even close to ideal replacements for a standalone when doing more than a small handful of mods.

keep the power low and relatively safe or pay to learn the hard way, 10psi is max for stock fuel system. 12psi is about max for a chipped ECU for larger injectors if you upgraded the fuel pump. beyond that you need a good intercooler replacement and a standalone EMS. the first still not addressing the timing mapping issue.

Last edited by RotaryEvolution; Apr 29, 2012 at 02:10 PM.
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Old Apr 29, 2012 | 08:55 PM
  #35  
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Originally Posted by 3xBlack Vert-top Mike
My car hasnt blown because I dont romp on it around every damn corner and I take care of it.
V
V
V
Originally Posted by 3xBlack Vert-top Mike
Me and a buddy of mine did a friendly run. Long story short, his 7 is pulling 338 to the rear wheel with a similar set up and I pulled him about 3/4 car length so im going to guess 350ish???
V
V
V
Originally Posted by 3xBlack Vert-top Mike
I'm looking to go to the track next weekend. I'll let you guys know what times I'm pulling.


Originally Posted by 3xBlack Vert-top Mike
Dude relax its not your motor anyway...haha!!!
I'm posting in this thread for the benefit of others reading it. I honestly don't think that you will listen to reason. My goal is to simply keep others from doing stupid things.
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Old Apr 30, 2012 | 10:31 AM
  #36  
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From: Loganville, Ga
Originally Posted by Karack
just trying to save you some headache and the near future blown motor if you keep on this path.

some people have managed with similar setups for a number of years, do not think you can do the same because those people were lucky to have had the engine stay together for that long.

for example i had a customer come in with ignition timing advanced a full tooth, running almost 30* of advance FURTHER than stock timing settings, that is OVER 70* timing advance... they took me out and i could hear a popcorn maker under the hood and that car ran that way for many months! it was a ticking timebomb and it only took me 3 minutes to fix.

the stock turbo is only good for 285WHP, do not let anyone try to trick you into thinking otherwise.


the main issue with piggybacks and/or the stock ECU with the FCD is you have zero way of controlling timing and the FCD causes a further split in the proper timing curve of the engine for smooth usage throughout the whole RPM range. we can't reprogram these turd ECUs and piggybacks aren't even close to ideal replacements for a standalone when doing more than a small handful of mods.

keep the power low and relatively safe or pay to learn the hard way, 10psi is max for stock fuel system. 12psi is about max for a chipped ECU for larger injectors if you upgraded the fuel pump. beyond that you need a good intercooler replacement and a standalone EMS. the first still not addressing the timing mapping issue.
I understand man...I've been trying to figure out why my turbo is out of control. Ive been wanting to lower boost at least until I can get a small turbo set up on the car. I'm already looking into changing out the turbo and go for something like a gt35 on low boost(7-10psi).

Originally Posted by Evil Aviator
V
V
V

V
V
V





I'm posting in this thread for the benefit of others reading it. I honestly don't think that you will listen to reason. My goal is to simply keep others from doing stupid things.
Dude if you think running the car one time in the last 3-4 months that ive owned the car is romping it around every corner than you must not have very much fun lol. I baby the **** out of this car! Lol I drive it a few times a week and it doesn't see over 2psi of boost. That's beside the point...I am willing to listen to reason but its all in the way you talk to people. Haven't you noticed I havent had a problem with anyone else telling me I'm headed for trouble if I don't lower the boost...
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Old May 1, 2012 | 04:30 PM
  #37  
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Originally Posted by Evil Aviator
not on an extended port 13B with 4x720cc injectors and a band-aid fuel control system.
true, i am running stock ports
but the statement was that you can NOT run a stock turbo at 15psi without destroying it. porting was not adressed
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Old May 1, 2012 | 05:34 PM
  #38  
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Originally Posted by Furb
true, i am running stock ports
but the statement was that you can NOT run a stock turbo at 15psi without destroying it. porting was not adressed
Stock ports for me too, and I was only running 550/720 w/the cruise portion of the map leaned out got fuel economy.

4x720 is more than enough fuel for the stock turbo , its just going to run stupid rich w/o fuel control. Also the stock timing maps cannot be trusted in high boost. I don't recall how much, but it runs 25°+ advance in boost.
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Old May 1, 2012 | 11:53 PM
  #39  
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From: regina
[QUOTE=3xBlack Vert-top Mike;11072411Can the stock turbo be rebuilt to be efficient at 15PSI? .[/QUOTE]

http://www.bnrsupercars.com/

scroll to bottom of page untill you find stage 4 .....read stage 4
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Old May 5, 2012 | 12:17 PM
  #40  
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Well here's a number for you to consider. Years ago I had a set up very close to that and I put down 220 RWHP. That was in Denver where the air is a little thin at over 5,000 feet. Just my $.02
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