MR2 Turbo - The road to 400bhp

[Midshipracer]

Hey guys,
This going to be one long as thread when I've finish with it but for the moment it project is on hold because of a new arrival coming soon. It doesn't however stopped me from acquiring parts and putting them in storage until I'm ready

So just for now a few updated picture and the new blower









Here is the Turbo upgrade... GT3076r

[Midshipracer]

[Midshipracer]

I wish a list as long as my arm.

Bigger injectors 850cc I'm thinking, new fuel pump
Forged pistons and rods
New standalone ecu.

See, quite a few bit. A few priorities taking over this year but I've got the ball rolling with the turbo wastegate and manifold.

[Midshipracer]

HughesR1 said:

Will be a total weapon! Is it a rev5?

Thank you all for the props. Cant wait to start work once my life has settled down a little

The car is a Revision 3 kept in pristine order but most of us here are like that

Edited by Midshipracer on Tuesday 14th May 16:36

[Midshipracer]

Update time! told you i was going to be taking me sweet time, but hopefully the car will be fully rebuilt in a few weeks

The head was rebuild with low compression pistons, new gaskets, oil and water pump basically the whole works

[Midshipracer]

Yeah, i'm hoping. 400bhp is conservative aim.

I also pull my finger out and got my wheel refurbed

From this

[Midshipracer]

MGZRod said:

The equips look decent. I've a set in my garage in need of a refurb. Did you re-use the original bolts? Mine have raised 'work' lettering I do'nt really want to lose!

I'm jealous, those are the 'Type 1' Equip centre caps i want and i'm still looking for. Yep i used all my old bolts but got new valves obviously

[Midshipracer]

Evoluzione said:

What are you doing about cams, headwork and the fact that the block splits?

Revision 3 cams are fine for everyday useability which is what i'm looking for. Not looking for absolute power, even though i will have the room for it with the turbo. As for the block cracking, i'm going to install water injection. I've been reading up on it a lot and it helps cool the cylinder walls a lot and stop detonation which in turn causes the cracking of the block.

All the heading is rebuilt with low compression pistons

[Midshipracer]

It's all her say tbh, it was pot luck. But definitely having low compression pistons, a good map and water injection really help keep things like detonation at bay

[Midshipracer]

A long overdue update, here are some pictures of my progress,

Engine rebuild and new wheels done, more engine pictures soon. Not quite got the 400bhp yet, i'm at around 340bhp, the ECU map still need tweaking

[Midshipracer]

Back for another update,

A quick recap of whats happened in the 3 years. Upshot 431bhp

2016
Aquamist Water methanol injection added. Controlled by the ECU

2017
Changed from a Garrett GT3076r turbo to a Garrett GTX Gen II 3076r
Main reason for this was i was getting really frustrated with the late spooling of the previous turbo
New tech meant it was win-win i.e. better spooling by 1krpm and more power

2018

Changed the HT ignition OEM to 1ZZ COP from a MR S or Gen 7 Celica
Changed from a 2.75" intake to 4"

Here are some pictures

Dyno sheet






The old turbo



New turbo stats




Business end, not the prettiest but works

Edited by Midshipracer on Sunday 10th June 00:22

[Midshipracer]

I'll have to take some videos,

I've been to Rockingham around a year ago. none on my new setup

[Midshipracer]

Finishing touches to the summer wheels, of getting red centres to match the barrels

[Midshipracer]

samoht said:

Beautiful car, and must be super-fast.

From the dyno chart, the power basically doubles between 4,800rpm and 5,900 (210 to 420hp), which looks like it might be a bit hairy feeding the power in on track - how does it feel in reality?

Is this because dynos are done in 4th gear.

In reality real boost comes in at 3800rpm if you compare that to the OEM CT20B turbo coming in at 3000rpm.

In 4 pots you rarely accelerate while cruising from a high gear.

You can really feed in the power on this turbo

I had the first generation of the same turbo and that was really laggy and frustrating

[Midshipracer]

danllama said:

Nom.

How do you do away with the dizzy set up for COP?

After the COPs change over the dizzy cap is just there to tell the crank positioning i think.

One of the last things to do is to buy a crank trigger kit so i can remove the dizzy cap.

http://racerxfabrication.com/mr2-celica/ignition

It's purely for cosmetic purposes

[Midshipracer]

Thanks everyone for the compliments, after 10 years of ownership now coming in August the car is finally getting the way i want it.

Just want to add the car has been 100% reliable in all the time I've had it unless it was something i did. (Left the lights on in a service station on the motorway and the battery ran out )

Maintenance is done religiously oil changed every 4 months.

Power is kinda of manic at the top in but like any car if fed in a linear manner it's fine.

I do have 2 boost settings low is 380bhp and high is that 431bhp

[Midshipracer]

psychoR1 said:

Looks great - who built your engine?

My friend Luke Bliss from Pacific Works now Drift Limits built it in 2014.

[Midshipracer]

TotalControl said:

Excellent. Read this and commented back when it was first posted. Still desirable. Enjoy.

Ah thanks, much appreciated More to come

[Midshipracer]

IdiotRace said:

Hi Mate

Long time no see haha

Here's a picture I took a while ago with my scruffier Turbo. My engine has been rebuilt and a bunch of other stuff but I'd be happy with around 350bhp. Still only running a lil TD05-16



Are you coming to the memorial on the 1st?

Most definitely mate i'll be there.
We can exchange notes when there. Was ECU are you running?

[Midshipracer]

psychoR1 said:

Yes - I though as much - will probably see you up there on the 1st - we met once when we were up there - I have a sonic shadow that he converted...

Nice, i look forward to it