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Location:
PERTH
Registered:
October 2003
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: hi flow the CT26 turbo?
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Sat, 11 October 2003 04:15
 
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| MRTWOSUM wrote on Sat, 11 October 2003 13:31 |
can someone help me 
1. is it worth hi flowing the standard turbo on my MR2 turbo 1993 model?
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Depends on what you want from the car!
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2. will it make a big difference?
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Yes
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3. how much should i be expecting to pay?
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$1100 was a price I was quoted a while ago!
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4. do i need to touch the computer after hi flowing?
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If you want to crank up the boost you will!
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i have full exhaust system & not really keen on changing the turbo.
any other comments you have to make
thanks
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If you pm boost he had one for sale a while ago if I remember correctly
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I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
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Re: hi flow the CT26 turbo?
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Sat, 11 October 2003 07:27
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if ya highflow the ct26 what is safe to pump the boost up too? i have a FCD
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Location:
Brisbane
Registered:
November 2002
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Re: hi flow the CT26 turbo?
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Sat, 11 October 2003 08:53
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I would normally say 15psi but my cousin says if you have a fuel cut defender 50psi is okay.
Ask a stupid question, get a stupid answer.
You sound like you don't know what you're doing. Even if you do, you should still be getting the boost turned up on a dyno so that you can monitor the air fuel ratios.
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I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
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Location:
PERTH
Registered:
October 2003
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Location:
Brisbane
Registered:
May 2002
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Re: hi flow the CT26 turbo?
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Sat, 11 October 2003 11:37
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i think you would be struggling to run a low 13 with a hiflow ct26.
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Location:
MACKAY
Registered:
May 2002
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Re: hi flow the CT26 turbo?
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Sat, 11 October 2003 14:01
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A HiFlowed CT26 is easely capable of getting a MR2 into the 12's but the standard ECU fuel and ignition mapping will be a problem . The CT26 to use is a HiFlowed single entry turbo off a 7MGTE as these have a larger exhaust housing and steel wheel but to fit this to the MR2 you will need a exhaust manifold off the ST165 3SGTE and a new dump . I'm running a HiFlowed CT26 with the 7MGTE exhaust housing and putting out 260 RWKW on 23psi .
Trevor
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I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
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Re: hi flow the CT26 turbo?
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Sat, 11 October 2003 14:03
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trevor is that on standard computer?
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: hi flow the CT26 turbo?
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Sat, 11 October 2003 14:14
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| Oz_Craig wrote on Sun, 12 October 2003 00:03 |
trevor is that on standard computer?
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No
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I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
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Re: hi flow the CT26 turbo?
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Sat, 11 October 2003 14:23
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cheers bigears, so whats safe on a standard computer?
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Location:
Cabramatta, NSW
Registered:
May 2002
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Re: hi flow the CT26 turbo?
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Sat, 11 October 2003 15:23
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3S-GTEs have fuel maps up to 1bar (~14psi). I think the post '94 ones have maps up to 18psi?
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Location:
Colac, Victoria
Registered:
May 2002
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Re: hi flow the CT26 turbo?
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Sun, 12 October 2003 05:59
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pre 94 are only mapped to 13-14psi on stock ecu - Group A 185's and 205s can go to 18-19psi on stock ecu ..
more boost would definantly need something along the lines of new ecu - I think Apexi make a plug in unit for the MR2 - or is it powerfc ..
Wolf also have made a st185 ecu plug in unit too - which im gunna look at
If your mr2 has a gen3 3sgte - or later - Apexi make a unit for the st205 that you could plug and play
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Location:
Brisbane
Registered:
November 2002
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Re: hi flow the CT26 turbo?
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Sun, 12 October 2003 10:35
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not gunna waste my breath
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Reread my post. I posted it for a reason.
Even if you make exactly the same modifications to two identical cars, you are likely to get slightly different results. That is part of the reason I made the post.
A second reason, as I mentioned, you don't really seem to understand the way modifying a car works. 14psi is not 14psi! People dont' seem to grasp this fact.
On a larger turbo (or a high-flowed turbo), 14psi will be a greater airflow than 14psi on a smaller/stock turbo. This means that you may lean the car out too much by running higher boost, and cause the engine to dismantle itself in a manner that is both spectacular and expensive.
So, the amount of boost you can run depends very heavily on the trims you choose for your turbo modifications - and how much air flow is generated at a given boost setting. Boost does not equal power. You may find that with a high flow you can make more power, but not be able to run as much boost pressure as on the standard turbocharger setup.
Detonation is the devil. Get the boost set by a professional on a dyno so that the AFR's can be monitored.
Even then, there are still a lot of variables. The general state of tune, the spark plugs you are running, how fresh your engine is, what kind of exhaust you are running, what your intercooler is, the ambient temperature, the general atmospheric conditions (altitude, etc), compressed air intake temps, fuel setup, fuel type, etc etc etc etc etc
I'm trying to save you from buying a new engine. Think I'm an idiot all you like, but ignore this advice at your own peril 
[Updated on: Sun, 12 October 2003 10:39]
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Location:
Parramatta
Registered:
July 2002
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Re: hi flow the CT26 turbo?
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Sun, 12 October 2003 23:07
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7m hit it on the head if u differenet pressures are different in each turbo 14psi on a ct26 and then a gt30 6 psi prolly equates to about the same pressuredue to the size of the compresser it can spin and generate more air flow = more pressure!!!! more power.... also if ur after a 13.... u will need to change the ecu being a gen II motor... and then high flow with it tuned well and then with little bits and peices you will run ur 13.???.
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Location:
Brisbane
Registered:
November 2002
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Re: hi flow the CT26 turbo?
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Mon, 13 October 2003 11:00
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I'm glad someone agrees. We'll educate the masses yet.
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Location:
Canberra
Registered:
May 2002
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Re: hi flow the CT26 turbo?
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Mon, 13 October 2003 11:23
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but 14psi boost is 14psi boost isn't it? 
Its a never ending argument that you just cant get some people to come around to Why not fit a T2 if it can make 20psi?
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