single on stock motor
10-29-2005 | 03:43 PM
#1
Thread Starter
Junior Member
Joined: Sep 2003
Posts: 21
ok guys i got a question. can you have a single turbo on a stock motor if you only run 10psi? i know its better to just build the motor but i cant shell out the extra 5k for the motor to get built. and i am going to run only 10psi. This set up will just be for a few months. The reason is because my 2nd turbo is gone and my first is headed that way. Oh and the car only has 60k on it.
any info?
any info?
10-31-2005 | 01:17 AM
#4
Member
Joined: Oct 2005
Posts: 72
From: Wisconsin
This is something I am planning on doing as well!
I believe that the only other thing that will need to be changed will be the fuel maps. My current setup with the twins is: intake, DP and cat-back and it looks to be dangerously close to running lean on a cold night. With the single I plan to be running 11psi max, which is a safe distance away from 14psi when the stock apex seals tend to pop.
This is something I am very interested in; I hope there is someone here that has done this before and can offer some guidance.
I believe that the only other thing that will need to be changed will be the fuel maps. My current setup with the twins is: intake, DP and cat-back and it looks to be dangerously close to running lean on a cold night. With the single I plan to be running 11psi max, which is a safe distance away from 14psi when the stock apex seals tend to pop.
This is something I am very interested in; I hope there is someone here that has done this before and can offer some guidance.
10-31-2005 | 07:47 PM
#6
to infinity & beyond, me
Joined: Aug 2001
Posts: 5,124
From: santurce
i didnt know stock apex seals could only handle 14 psi....
anywho, im running 10 psi on a t78 with stock reman. the only thing that sucks is that stock ports are only efficient till about 7k, but the turbo wants to keep going.
anywho, im running 10 psi on a t78 with stock reman. the only thing that sucks is that stock ports are only efficient till about 7k, but the turbo wants to keep going.
11-01-2005 | 07:02 AM
#7
Senior Member
Joined: May 2002
Posts: 4,928
From: Okinawa, Japan
Originally Posted by RE-Amemiya7' post='774159' date='Oct 31 2005, 04:17 PM
With the single I plan to be running 11psi max, which is a safe distance away from 14psi when the stock apex seals tend to pop.
This is untrue. As I previously stated, ErnieT made HEEPS of power at HIGH boost (for a rotary) on stock MOTOR (that's seals and ports).
11-01-2005 | 12:20 PM
#9
Senior Member
Joined: Dec 2002
Posts: 4,107
From: fredneck MD
Originally Posted by rowtareh' post='774494' date='Nov 1 2005, 12:43 PM
only thing porting does is helps out with top end power, and then you lose some low end power. but rotaries are notorious for no low end, so who cares??
You dont loose that much power.
ive seen stock seals take 50lbs of boost with n20 spraying. Its all about the tune.
11-01-2005 | 02:46 PM
#10
Member
Joined: Oct 2005
Posts: 72
From: Wisconsin
Originally Posted by jspecracer7' post='774450' date='Nov 1 2005, 07:02 AM
This is untrue. As I previously stated, ErnieT made HEEPS of power at HIGH boost (for a rotary) on stock MOTOR (that's seals and ports).
I am basing my statement, that stock apex seals tend to go at 14psi, on posts from previous topics and from conversations with Pettit Racing and Rx-7Store about a single on a stock motor. With the right tuning, yes, +14psi can be done.