The 1ZZ Turbo Engine Dream Build

[Essex2Visuvesi]

Son and I will be building a new engine for the MR-S over the winter and as we are turbo'd we are going to upgrade a few things during the process

Aim his to hit the high 200s

So chaps what would you suggest?
Post your shopping lists of your perfect build here
Please don't water this down with "Chuck a 2zz/V6/V8/V12/2JZ etc in it" comments. This is strictly a 1ZZ Build

[jonty]

Not sure on most things but a decent standalone ECU is high on my list for any project, if you have closed loop boost and knock control you can keep the engine in good shape and also avoid torque levels that will kill the gearbox, as well as make it nice and drivable.

[m1tch]

Low compression pistons
Forged rods
ARP head studs
Uprated valve springs
Lighter flywheel
Uprated clutch
AEM EMS4

Pretty much what I will be doing at some point in the future, will also be upgrade to the SSC 3rd and 4th gear sets to improve the reliability of the gearbox - might get away on the stock box though.

[jvanzyl]

Umm...I guess you'll be wanting some nice strong Conrods? Stand alone ECU....
Stage 3 Crowers?

[1979scotte]

Link Storm ECU
PWR chargecooler
Borg Warner EFR 6258
Cast manifold
Quality gauges
Forged rods and maybe pistons/gearbox upgrade if you are really going for it.

Stupink is getting high 200s with a piggy back and a gt2871.

[Essex2Visuvesi]

Thanks chaps
Here's What we have already in the bits box/fitted to the car:-

Apexi PFC with FC Hako PC Link
Blitz SBC-iD Boost controller
Power enterprise turbo kit
Walbro Fuel Pump
2ZZ injectors
Aquamist Water Injection
Mishimoto Radiator
Oil cooler with thermostatic SW plate
Charge cooler system
Renault 5 GT Turbo alloy Intercooler
Couple of dump valves

The plan is to finish the conversion on the current engine and then build a motor that can take a bit more abuse over the winter then either build another complete car or swap the engine out

[Bullit]

I wanted to go this route too but i could find a supplier of low comp pistons or uprated rods.

[lamcote]

I'd be surprised if 2zz injectors were good enough for high 200bhp, even if you increase fuel pressure?

A big sump might not go amiss.
Stainless steel valves?
I reckon you could run standard compression if you have a good map and plenty of intercooling/water injection.
80°C thermostat
Ported head, especially on the exhaust side.
Accel Super ignition coils from MWR.

[m1tch]

I wanted to go this route too but i could find a supplier of low comp pistons or uprated rods.

MWR does them, have found a few UK suppliers of uprated rods, not really found 1zz pistons in the UK, guessing MWR gets custom pistons made for the 1zz, loads for the 2zz.

[jonbill]

JE have a great reputation for affordable custom pistons. Also you can get pretty decent forged rods from chinese suppliers like maxspeedingrods.

[Essex2Visuvesi]

I'd be surprised if 2zz injectors were good enough for high 200bhp, even if you increase fuel pressure?

Agreed, I probably need to go somewhat bigger, however they are in the toybox as it were

[1979scotte]

I wanted to go this route too but i could find a supplier of low comp pistons or uprated rods.

TCB an affiliate here will do you rods at a fair price.
Pistons are mega money made to order by Wiseco or you could get them made in the UK.

[ChrisGB]

If you are staying in the 200s, I would only add rods, bolts and bigger injectors.

[m1tch]

JE have a great reputation for affordable custom pistons. Also you can get pretty decent forged rods from chinese suppliers like maxspeedingrods.

I've asked maxspeedingrods, they don't do the 1zz, they are custom order only for a minimum of 12 rods - group buy anyone?

Here are the rods I have found so far off the shelf:

 m http://molnarrods.com/toyota-1zz-connecting-rods m

Although I think I might have to go to MWR for the pistons, not sure how much the import duty will be, they do them in 79.5mm, 82mm or 82.5mm in the 8.8:1 compression ratio.

 m https://www.monkeywrenchracing.com/prod ... 81-79-5mm/ m

[1979scotte]

JE have a great reputation for affordable custom pistons. Also you can get pretty decent forged rods from chinese suppliers like maxspeedingrods.

I've asked maxspeedingrods, they don't do the 1zz, they are custom order only for a minimum of 12 rods - group buy anyone?

Here are the rods I have found so far off the shelf:

 m http://molnarrods.com/toyota-1zz-connecting-rods m

Although I think I might have to go to MWR for the pistons, not sure how much the import duty will be, they do them in 79.5mm, 82mm or 82.5mm in the 8.8:1 compression ratio.

 m https://www.monkeywrenchracing.com/prod ... 81-79-5mm/ m

For rods contact TCB I got a great deal.

[m1tch]

JE have a great reputation for affordable custom pistons. Also you can get pretty decent forged rods from chinese suppliers like maxspeedingrods.

I've asked maxspeedingrods, they don't do the 1zz, they are custom order only for a minimum of 12 rods - group buy anyone?

Here are the rods I have found so far off the shelf:

 m http://molnarrods.com/toyota-1zz-connecting-rods m

Although I think I might have to go to MWR for the pistons, not sure how much the import duty will be, they do them in 79.5mm, 82mm or 82.5mm in the 8.8:1 compression ratio.

 m https://www.monkeywrenchracing.com/prod ... 81-79-5mm/ m

For rods contact TCB I got a great deal.

I have PMed them - will see what they come back with, currently costing up all the parts for my build.

[Essex2Visuvesi]

There's these as well
 m https://www.zrp-rods.com/shop/toyota-1- ... ting-rods/ m

Or you could risk these ones
 m https://www.aliexpress.com/store/produc ... 18273.html m

[manos3003]

ZRP ones are tried and tested from friends of mine who did stupid numbers with their cars so they come highly recommended. Any billet/forged connecting rods from a reputable brand should be good for reliability at that setup I would think  s:) s:)

[Essex2Visuvesi]

I have ordered one of the Ali express ones for evaluation purposes. But the ZRP ones do look good value as there is no worries about import duty like the US ones

[maybeturbo]

Would it not be more sensible to put in a 2zz rather than a built 1zz then modify your manifold (or replace/custom, whatever) possibly turbo too, I think rbuckingham has the same turbo as the pe kit with nissan gtr35 internals, that should see your power goals. Just a guess, I've done zero research into this, just remember seeing 1zz vs 2zz rods somewhere and the 2zz were a hell of a lot beefier.

[manos3003]

Would it not be more sensible to put in a 2zz rather than a built 1zz then modify your manifold (or replace/custom, whatever) possibly turbo too, I think rbuckingham has the same turbo as the pe kit with nissan gtr35 internals, that should see your power goals. Just a guess, I've done zero research into this, just remember seeing 1zz vs 2zz rods somewhere and the 2zz were a hell of a lot beefier.

Read what the man said in the first post.

Son and I will be building a new engine for the MR-S over the winter and as we are turbo'd we are going to upgrade a few things during the process

Please don't water this down with "Chuck a 2zz/V6/V8/V12/2JZ etc in it" comments. This is strictly a 1ZZ Build

[maybeturbo]

I did see that but I'm suggesting still staying with the same turbo kit (sort of) His car has the same turbo kit as mine you see.

[Essex2Visuvesi]

Having driven a 2ZZ Celica I have to admit I'm not a fan of it, hence sticking with the 1ZZ and turbo

[maybeturbo]

Maybe someone with a supercharged or turboed 2zz could chime in, I'd imagine it's a different kettle of fish to a standard 190 celica. I did get a quick go in a corolla compressor when they first came out on a test drive and it transformed the car from a revvy hatchback to a really strong torque curve that also screams. Was fun, not really quick though but the rolla must be a lot heavier.

Just thought, the apexi pfc must be able to set the lift point so with a turbo that spools from 1300rpm and the lift much lower it would be way different.

Each to their own though, good luck with it.

[1979scotte]

2zz rods are much stronger than 1zz.
2zz is a great engine and will make great bhp but no torque.
For example 350bhp but only 250 ft-lb with a rotrex on stock internals.
I was going to build a forged 1zz until the V6 came up.
I realised I would need to do a gearbox swap at some stage if I wanted more than 250 ft-lb so I bought a car that already had one.
And got a proper soundtrack thrown in.
Back on topic now.