td04 max boost standard 4e track car

K

katiie

Banned
my friends bought a td04 gt,its his weekend/track car which has a 1.4mm headgasket and ported head, emanage blue etc, currently the car is mapped for 1.1 bar and made 223bhp, would it be fine if he had it mapped at more boost if he bought better injectors? the car isnt his daily and only does 100-200 miles a month.thnx :)
 
G

glanza/supra

Fresh Recruit
i used to run 1.6 bar with forged 4e, and with 460 cc injectors, ran great, so i would reccomend upgrading to at least 460 cc :)
 
pilgrim_fgau

pilgrim_fgau

Member +
glanza/supra said:
i used to run 1.6 bar with forged 4e, and with 460 cc injectors, ran great, so i would reccomend upgrading to at least 460 cc :)
Click to expand...

And don't even think about 1.6 bar on stock piston and rod setup.

460cc will be overkill for the boost he would be running.

I would say 1.2 bar will be the limit for reliability on a stock engine on the track.
 
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A

AdamB

Member +
The pistons are the weak point, the ringlands ALWAYS break up when running higher boost pressures.
I would say 1.2 bar or 1.3 bar, but how long it lasts is anyones guess, to stick with it being reliable just run it at 1.1 bar. To go faster look at other options like gearing.
 
K

katiie

Banned
well for the boost it runs should it be 223bhp?? ive seen people at 1.2 bar make over 250? the torque is only 175 too!remap at 1.2 bar by someone else youlot recon?
 
A

AdamB

Member +
Every engine is different, every engine can take more/less fuel, and more/less timing. 223bhp at 1.1 bar seems fairly average.
 
S

Starletto_Joz

Member +
1.2 bar maximum with 370cc injectors is your best bet. Turn it down for daily driving. The rest will all be in the tune (road map with wideband essential) and current health of the engine. My car runs standard 4EFTE at 1.2bar max and 0.7-0.8 daily mapped with emanage ultimate -

My EP91 Dyno Results

It also depends what type/quality of manifold/setup you are using. From your current setup 0.1bar is not going to make a huge jump in torque or power from your current figures. How does the car feel and what management is it running? Is it an animal? A recent engine rebuild will improve your chances of the engine lasting longer and taking the higher boost pressure, again depending on quality of map with precautions in place.

Don't forget that 223bhp would be the flywheel horsepower, so you'd be looking at a realistic 185-190 at the wheels with even lower torque.
I also drive a similar amount of miles a month but she sees no track action (yet) You may want to try a different mapper and try a different rolling road if feasible.

Joz
 
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weeJohn

weeJohn

Lifer
Your big problem is keeping that cool on track at anywhere near a bar. We had to run a 2.5 inch thick Evo rad to keep our Corolla track car cool on an 04 with a Blitz ecu and both my 4WD and EP91 conversion struggled with it as well.

You dont want huge power anyway, you will find it to handy to use to pull you out of a bad line you have took. Less power will help you hone your skills on track and reward you more than 20 or 30 bhp more.
 
pilgrim_fgau

pilgrim_fgau

Member +
weeJohn said:
Your big problem is keeping that cool on track at anywhere near a bar. We had to run a 2.5 inch thick Evo rad to keep our Corolla track car cool on an 04 with a Blitz ecu and both my 4WD and EP91 conversion struggled with it as well.

You dont want huge power anyway, you will find it to handy to use to pull you out of a bad line you have took. Less power will help you hone your skills on track and reward you more than 20 or 30 bhp more.
Click to expand...

this, you will also find brake, suspension and chassis upgrades more worthwhile for the track
 
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