VR4 Turbo~

[xiaozhu]

Hi guys~ i'm from singapore n Driving a VR4 6A13.
I wanted to change the turbo but not sure wat brand of turbo can i change for Direct bolt on.

Looking for turbo that direct Bolt on for VR4. do you know wat brand? apexi? greddy or HKS etc? ya i looking for intercooler too. also direct bolt on for VR4.

Btw i had change my ride to FWD without TCL etc. But the engine check light keep on coming out of TCL Traction Control. would like to know can i do a bypass for it? So that the check light will not come out.

If able to help me pls email me at match0419@yahoo.com or msg me here~ thanks BRO~!

[bradc]

There are no options at all to buy a direct bolt on turbo. The stock ones will flow up to about 350hp with relative ease, anything beyond that requires a lot of work.

[xiaozhu]

There are no options at all to buy a direct bolt on turbo. The stock ones will flow up to about 350hp with relative ease, anything beyond that requires a lot of work.
I mean i looking for turbo that come with piping header etc for VR4. also don't have?

[Gly]

none, no aftermarket turbos at all,

everything has to be custom made if you want to upgrade the turbos,

you can buy intercooler and pipe kits,
but nothing turbo wise without it being custom alot of work/time and money.

www.RHDJAPAN.com

[Gowf]

There are a few that have gone for bigger turbos inc myself, although i havent finished it yet, but unless you are totaly devoted to doing it and you have a lot of cash and patience then around 350bhp is your limit i would say

[Slimshady]

There are no options at all to buy a direct bolt on turbo. The stock ones will flow up to about 350hp with relative ease, anything beyond that requires a lot of work.


350BHP!!!! lets see some graphs – on Dyno Day the average VR4 reached 266.5BHP.

If you want to see the best check out Nick Mann’s car (321.2) or the Vee’s hybrid V6 with VR4 engine (256.9)

Even a standard GLS produced 133.3BHP

Or you could drop back and look at a V6 (194.6BHP)

You will lose 25% for 4WD and 7% for Tip

Therefore look at power at the wheels:
VR4 = 149.81BHP
V6 = 142.88BHP
GLS = 89.66BHP

To reach 350BHP you must have done some serious work under the hood or used N2O

If you do manage to reach 350 on a standard turbo let us all know so we can all upgrade or force induction further.

Ninja Neil


AKA Slim

[Kenneth]

I was able to fairly easily get ~320HP ATF on a VR-4 with only intercooler and exhaust. (this is based on 246HP ATW and and 74HP drive train loss)

I would expect that 350 would be attainable with further mods such as IC piping and some decent pre-turbo pipes. May need a little fuel tuning to go with it

All of this can be done without spending huge amounts of money too.

If you want to spend huge amounts of money, Brad is probably close to the 380HP mark with full standalone ECU on the standard turbos.

[Gly]

well brads car puts down around 220-225kw ATW

so

225 kW equals ~301 bhp ATW

i think brad may have been talking about at the fly power figures,
which means nothing to anyone.

[xiaozhu]

Hmmm~ My VR4 was 240 on wheel running on 0.8kpa boost~. N mine is front wheel~ hehehe~
Btw is there anything that i can change? other than exhuast etc..
how abt T.B? (Throttle Body)
ANyone change it bigger?

2. Wats the MAX HP on flywheel can our gear box stand?

[Gowf]

350BHP!!!! lets see some graphs – on Dyno Day the average VR4 reached 266.5BHP.

If you want to see the best check out Nick Mann’s car (321.2) or the Vee’s hybrid V6 with VR4 engine (256.9)

Even a standard GLS produced 133.3BHP

Or you could drop back and look at a V6 (194.6BHP)

You will lose 25% for 4WD and 7% for Tip

Therefore look at power at the wheels:
VR4 = 149.81BHP
V6 = 142.88BHP
GLS = 89.66BHP

To reach 350BHP you must have done some serious work under the hood or used N2O

If you do manage to reach 350 on a standard turbo let us all know so we can all upgrade or force induction further.

Ninja Neil


AKA Slim

Im afraid i have to dissagree.

Yes it is true that these cars are meant to have 273bhp as standard, but in reality if you dyno one, they very rarely meet that.
Mine managed 273 at 0.6bar with an air filter, exhaust and intercooler (bear in mind the air filter and ic will lose you power with that level of boost and under bonnet heat).

Not meantioning any names here, but with a decent exhaust and fast flow cat and a Map2 ecu, i have seen a uk car make 330bhp and 350lbft of torque.
No, that is not 350bhp, but that was at 0.8bar of boost with an 11.2 afr and 0 degrees of timing advance.

In the interests of reliability i feel that this is adequate, but if reliability wasnt an issue then 350bhp is, as can be seen, an attainable goal.

Like i said though..... beyond that you are really limited by the tiny turbos and thats when serious money becomes involved.

[Gowf]

Hmmm~ My VR4 was 240 on wheel running on 0.8kpa boost~. N mine is front wheel~ hehehe~
Btw is there anything that i can change? other than exhuast etc..
how abt T.B? (Throttle Body)
ANyone change it bigger?

2. Wats the MAX HP on flywheel can our gear box stand?


I dont know about the bigger throttle body, i think the standard one should be sufficient.

2. I take it you have a manual, if so they can take quite a lot of abuse. Not sure on the top figure but i do intend to find out

[bradc]

slim - if you put in 225kw into the old dyno calculator as per the UK results I think my car makes around the 390-410hp stage, I can't remember the exact number now though.

[Eurospec]

Bigger throttle body i dont think will work too well. On FTO's they lose power and torque when you add them. Even back to back'd one on the dyno (ie swapped the tb on the dyno still strapped down!)

Certainly i think it will hurt the NA cars, on the turbos it probably wont do much, but you certainly dont need it i dont think.

Cheers,

Ben.

[xiaozhu]

I dont know about the bigger throttle body, i think the standard one should be sufficient.

2. I take it you have a manual, if so they can take quite a lot of abuse. Not sure on the top figure but i do intend to find out

I see.. THanks for the info..

My gear box is auto gearbox. do anyone here know the Max auto gear box can hit? hp on fly wheel.

my VR4 is stock. only did a exhaust control valve and a ARC air box. running on FWD with out LSD, AYC n traction control. 0.8kpa hit 240whl 44kg torque.

THinking of doing up the turbo pipe to stainless steel n intercooler pipe too.

[Goku]

Why did you make it FWD instad of 4WD ?

[Axeboy]

After all my messing about, I reckon the standard turbos are good for up to 400 at the fly.

I managed 260 ATW and that was with:

Standard Intercooler
Very High Air Temperature
AFR Set at far less than it could be with the above sorted
Boost set at 0.85bar (IIRC)

With these items sorted, 300ATW was extrememly do-able according to the garage, who are turbo specialists.

All done with the simplest of mods.

[xiaozhu]

Why did you make it FWD instad of 4WD ?
More lighter~ haha~ like FWD more~ FWD power will be faster than 4WD as wat i think`

[xiaozhu]

After all my messing about, I reckon the standard turbos are good for up to 400 at the fly.

I managed 260 ATW and that was with:

Standard Intercooler
Very High Air Temperature
AFR Set at far less than it could be with the above sorted
Boost set at 0.85bar (IIRC)

With these items sorted, 300ATW was extrememly do-able according to the garage, who are turbo specialists.

All done with the simplest of mods.
Hmmm Reckon... u mean hybrid it?
my VR4 stock turbo was T03 only. how much is the max HP i still don't know~
Wat ATW?

[bradc]

ok, according to that dyno graph my car makes 396.5hp - can't complain much about that!

[Axeboy]

Hmmm Reckon... u mean hybrid it?
my VR4 stock turbo was T03 only. how much is the max HP i still don't know~
Wat ATW?


I would leave the turbos alone for up to 400...