ROBS 6a13tt TWIN GARRETT UPGRADE

[Abusive]

Different horses for different courses. I would take a manual over an auto any day, it wouldn't matter to me if the auto shifts quicker I like the feeling and fun of driving a manual

+1 here man, auto's may change quickly by themselves, but that's not to say a manual can't be shifted quickly also.

 

[Madhav]

I just saw the dyno pic for the first time on the previous page. Great power

One question, what RPM does it actually achieve full boost? I know it's hard because of the auto etc, but I had always wondered when the smaller Garrett's would hit, was very close to installing a pair myself.

 

[lathiat]

Any photos of the new intake?

 

[Chrisvr4]

Nice, upload some updated pictures of ur project meng!

 

[6A13TT TYPE S]

also intrested to see when these turbos come onto boost. maby if you could put up a map vs rpm graph of a dyno run that would be much appreciated

 

[TME_Steve]

also intrested to see when these turbos come onto boost. maby if you could put up a map vs rpm graph of a dyno run that would be much appreciated

Post number 267 has the dyno graph, the right hand side is the pressure scale and the lower line is MAP, the RPM can be correlated to road speed which is the bottom scale, I'd guess 3rd gear for an auto, you can do the maths for that. That said it's an auto and it looks like it doesn't completely lock up till about 130km/h, problem is our cars don't have the normal OBDII protocols for RPM output (we run through the MUT table) so dyno's can't read actual RPM, you could put a manual correction in the dyno but again it won't deal with torque converter slip anyway. In answer to your question and looking at that graph I'd say something like 4500-5000 before they are at 17-18psi, probably 15psi by a bit under 4000RPM.

 

[SLY-031]

Hey Rob,

Have you installed the new comp covers?

Would some cams with bigger lift and duration help reduce the surge?

Please tell us you cracked 300

 

[CUMSTI]

Im ready to roll on a turbo upgrade and wondering if everyone is customising manifolds and am i going to have to find an engineer here in sydney town.

 

[hozza]

http://ozvr4.com/forums/showthread.php?11597-EOI-Turbo-Upgrade-Manifolds-T25-T28

http://ozvr4.com/forums/showthread.php?11598-EOI-Turbo-Upgrade-Manifolds-TD04L

http://ozvr4.com/forums/showthread....-Garrett-flanged-steam-pipe-exhaust-manifolds

 

[jet150]

Yes the new comp covers are in and they haved helped alot. Cams can help to but it gets expensive.

At this point im fixing alot of fuck ups from Creatd Motorsport like injectors, tune, and at the moment I am installing a coil on plug setup using LS2 truck coils. I will have pics of the coil setup soon. The stock ignition basically shits itself after 14psi with the plugs gapped properly. Creatd Motorsport gapped the plugs with tiny gaps to try compensate.

Etuner in Melbourne is helping me fix these issues and he actually knows how to tune a Haltech Platinum ECU unlike some tuners that say they can.

Also got all new alloy pipping and custom airbox made by Race Trans Developments in Campbellfield pics will be up soon.

 

[6A13TT TYPE S]

cool if your intrested in cams I organise a regrind (although im in nz) for peanuts compared to the likes of rpw cams.
info here
http://www.clubvr4.com/forum/showth...grings-ROUND-2-discussion&p=680981#post680981
with your turbos cams would make a good difference!

 

[SLY-031]

Good to hear it is coming together(again!) well.

Sounds like 300 isn't going to be hard to crack with as many fixups/changes as you are making.

Please, keep us posted!

 

[vr4jim]

Just reading this thread now, Awesome stuff. You've set the standard!!

 

[Anton_Willows]

God DAYYUUUMM! why did it take me so long to find this thread.. AWESOME Rob, that's just pure awesomeness! Kudos to you!

 

[SLY-031]

Rob,

Where are things at with the car currently?

 

[SAF68]

hey , it's awhp or flywheel?

Saf

 

[SLY-031]

Kilowatts.

At the wheels.

OK so I finally got my car back after sorting out every issue the build gave us.

In the end the car makes 287awkw @18psi with an auto trans!

That's about 385hp at the wheels, so depending on what you calculate drivetrain losses at, it's about or just shy of 500hp at the flywheel.

 

[SAF68]

I think you might be right Justin, good reason to install bigger comp wheels.
I know it's about 6 months late but heres the dyno readout.

View attachment 10777

Look good ... Working the fuel map and timing map and the result will be better for sure Saf

 

[AKKO]

Plans for E85...?

 

[jet150]

Yes, as soon as Steve finishs my MAF the engine will be set up for E85.