ben yip

4 hours ago, campbeam said:

Don't know enough about rebuilding engines to offer real world advice. Just noticed internet posts about forged pistons and connecting rods for the 2GR-FE so maybe an opportunity to also

upgrade the head bolts and possibly the valve springs. I am more thinking about reliability/prevention than increased HP.

Best to analyse the cause for the low compression. Maybe too much before the engine is at optimal operating temperature. Learnt the hard way [too many years ago] not to over rev a cold engine then having to replace the piston rings a week later for a brief ego moment.

Factory 2gr has many forged internals. Forged camshaft and forged con rods. Piston is not forged.

http://m.australiancar.reviews/2GR-FE-engine.php

I still don't understand why your engine fails. You have around 210kw at the wheel. It is not too much. (A N/A build can make 200kw at the wheel at 6500rpm)

Are you running your engine too lean? What is your af ratio?

Taking the engine off cost around 2800 dollars. Plus you need to buy an engine from wreckers. You might also consider buying a short block from mwr and ship to Australia.

The hard thing for Rebuilding engine is to find a person who knows this engine. It is hard to guarantee the workmanship quality

There is a MR2 in Sydney running 2gr N/a and spin to 8000rpm. You might start contacting him for the person who knows this engine

I also know that there may be a quick way of fixing this without taking the engine off. I will do some research

Camshaft stage two has been ordered from monkey wrench racing. It would estimate to produce 106kw at the wheel at 7000rpm. Rev limit will set to 7500rpm for safety reason. I hope it will not affect idle quality to an undrivable degree.

Torque will probably drop a little to around 233nm at 5000rpm

The duration of this cam is 264 and lift is 11.45mm. stock duration is 246 and 9.7m lift for intake.

106kw at the wheel, so looking forward to race a 86 in Wakefield park

Below is my research to prove 7500rpm should be No problem

• 1zz can be rev at 7500 by monkey wrench racing with turbo. 1zz has longer stroke. He suggested me to rev to max 7500rpm max.
• 2gr engine can rev to 8000rpm with just valve spring upgrade, it uses the same design in hydraulic lash adjuster, valve spring and rocket arm mechanism
• Mazda MX5 rf engine can also rev to 7500rpm with skyactive g engine, which is also a long stroker
• 86 uses the same hydraulic lash adjuster and rocket arm mechanism
• Nissan sr20de uses a hydraulic shim and rocket arm mechanism , but with a worse design because of a valve shim problem.
• There are reports of rocket arm filing off because of passing 7000rpm with stock spring
• Renault Clio 192 sport is also a long  stroker and rev to 8000rpm
• Lotus with 1zr and 2zr engine can rev to 7000rpm, most likely with stock spring.

loose engine mount?

No need to go to specialist, should be easy to find out on the dyno, with one person looking at the engine

Jeff 

Please open your left passenger door to check the gear box model. It is hardcoded in a sllver badge with the VIN number, or call toyota directly to ask the gearbox model

Australian zre in my version (2010 up) use EC60, previous zre version uses c60

USA uses different version

Don't use a clutch LSD, it requires a lot more maintenance. I use the one from Quaife, it will tell which gearbox will it suit. You also need to buy few tapering bearing from toyota. It does not come with the LSD

Installing LSD is not cheap, you might fix whatever stuff inside the gearbox, I fix a couple of rings inside my box

Are you still considering getting another car? 

Jeff

I used A1RM before, and charged me $170 per pair, compared with Remsa $55.

Although A1Rm supports higher temperature, it requires suitable brake fluid to support it. Brake fluid is also very expensive. What brake fluid do you use?

I havent tracked the car for 6 years now. I am preparing to track 2 years later.

Winton requires LSD more than Wakefield, as so many continuous long corners. I lost so much time in those corners due to lack of LSD.  I have LSD installed now. You might change the flywheel as well, it significantly improves acceleration in 1st and 2nd gear

For the brake rotor, I noticed you are using DBA4000, it is much more expensive than stock, not sure whether I really need those rotors. Need your opinion

How is your engine so far, do you plan to rebuild it? or change another car? Your has 31XXXX on the clock, is that right?

Modify 2AZ-Fe in your car is so popular in USA

On 10/22/2018 at 4:22 PM, jeffy said:

Qfm A1rm + Hankook Ventus 235/40/17

Qfm A1rm + Federal 595ss 235/40/18

Yarra Race Pads + Nitto Nt01 235/40/17

Remsa + Hankook Rs-4  235/45/17

 

Nugget Nationals Exe Track Day.

Times as per Natsoft:

2:26.7190 2:05.2170 2:01.7470 2:01.6780

2:02.0310 1:58.5350 1:55.4500 1:56.7980 1:56.1520

2:07.5110 1:55.5920 1:53.3180 1:52.7770 1:51.8440

2:00.5910 2:06.4740 1:52.3660

Congratulations on new PB

REMSA is good brake pads, I used it for track all the time, and they are cheap

Any thoughts on this track day you want to share?

90KW is a bit high in stock in my opinion, provided 112kw at the paper for the flywheel, (around 20% drive chain loss)

11 hours ago, Squalled said:

Not required, doesn't burn oil or coolant. These engines are easily capable of over 350000 before a rebuild. It has no issues and most of my driving is on highways these days anyway.

Not to sound rude or anything but a mate of mine bought one with 360000 kms and it had well 200 psi compression (dry) across each cylinder. It was completely stock and kept up with a bolt on Sportivo (CAI and catback) which also had a vmanage tune too. Food for thought 🙂

Very good to know. Highway miles are good to engine. I know some people using non synthetic engine oil and have engine oil consumption at low mileage. I use synthetic nulon 0w-40 and no engine oil consumption at all.

Are you keeping the car for long? Looking after it and you can drive another ten years I suppose. 

Are you planning for an engine rebuild soon? 215000km is quite high. I would not use it for daily as traffic jam makes driving unenjoyable. My car is not daily driven as well, as I think I am wasting mileage on traffic jam. Especially spending a lot of time and effort to it.

Dyno today to prepare for camshaft install, what a suprise, 91.7KW at 6000rpm, but in 5th gear. Last time reading was 86.8kw in 4th gear

I have only changed new engine oil, new flywheel, LSD and new pod filter. This nst pulley is removed. It was raining in the morning and temperature is 16C, so I think the light weight flywheel gains 6kw

According to this, flywheel gained 8whp

http://www.superstreetonline.com/how-to/transmission-drivetrain/impp-1005-lightweight-flywheels-fact-or-fiction/

Car is confirmed to cut by fuel when over reving, so unichip i-driver is on its way to increase rev limit to 7400rpm

Now, I need to get the mechanic to fix the car for the front engine mount. Today discovered the engine mount is loose after replacing the clutch. 

Thanks for your info. I might explore ecu reflash tune if unichip cannot solve my problem. 

Done a more thorough test with the flywheel and LSD. I am impressed. With my heavy 16 toyota factory wheel, rolling start from 1st gear will generate wheel spin all the way to second gear. This is not possible before. Second gear acceleration is more aggressive as well.

For LSD, car no longer accelerate into straight line in turning corner. It is very useful in track day

With my camshaft stage 2 installed later on, car is not slow compared to a 86, so I am happy to keep the car for a long while

Estimated 0-100 time now is around 7.3 seconds

Quaife LSD is installed, gearbox is reconditioned, few broken parts replaced

MWR lightweight flywheel is installed

Car has more acceleration in 1st, 2nd gear, it revs faster at standstill

NST pulley was removed due to cracked into 3 pieces 4 years ago

Next Mod

MWR Camsahft stage 2 and stiff valve springs, have found a shop to do it

WIll raise the rpm from 6400 to 7400rpm, estimate to increase peak power by 16% to approximately 100kw on the dyno, or 150kw on the flywheel

Lightweight lithium battery, cost around $450, and will last much longer, weight <3kg. 

I can keep the car for another 7 years now. My odometer only reads 90000km now after 9 years, no engine oil consumption at all

The aurion engine is very popular for people to modify, but not in an aurion

https://www.monkeywrenchracing.com/product-category/lotusevora/evoraenginecomponent/

Aurion engine swap on mr2

https://www.mr2oc.com/188-v6-mr2-forum/524250-building-2grfe-na-weapon.html#/topics/524250?page=4

Use unchip or emanage for the ecu.  Do the ecu upgrade after intake and full exhaust. I have gained 10 percent in midrange after tuning in my corolla

Thanks Jeff. I have a kid now so don't want to change car. Today's car is getting too heavy, not fun on the track. I want to get a mini Cooper when my kid grows up., Something light and powerful. After putting a LSD,flywheel, camshaft, valve spring and increasing rev limit on my corolla, i The track day fun will come back. I estimate my 0-100 time would be around 7.2, so not bad at all..

Here is what I want. 

On 01/06/2014 at 8:37 PM, jeffy said:

Hi all just some updates.

Dynoed the Camry in April, with stock everything.

Estimating it to be 85+ kW - Got surprised with the 90.1kw Result with 3 runs :]

Is your stock engine 112kw?

Happy for you to track winton. I practised in computer games years ago before tracking,save so much time in learning this track.

No update from you recently?

There is so much to be done at 2GR-FE. This engine is used in Lotus

Check http://monkeywrenchracing.com

I know they are running emanage ultimate to increase the rev limit

Doing the following.

Lighweight flywheel, stage 1 camshaft, valve spring, increase rpm from 6600rpm to >7000rpm using latest unichip, very likely to hit around 92kw on the wheels

Quaife LSD for EC60 gearbox, I need this as I have problems in exiting corner on the track

Parts supplied by https://www.monkeywrenchracing.com

Lighweight flywheel wont increase the dyno number much because it is on 4th gear, but 1st and 2nd gear will have significant increase in acceleration

Hong Kong protestors are using Toyata Chaser (without wheels) to block the main street

My car already has this, installed by probably another Michael, who is a Lexus techinican, so it will work

Reminder tonight

that equipment of tracking the time is expensive !! What have you got?

Good for your PB, but why on street tyres again !!! want to see your pb on semis !!!

I watch the video, I think you can brake later on corners, and that car is blocking you, sigh!!!

I am not that far away from you, hahahaha

Just come from a workshop today, he uses aurion engine on an ae86, ..I have a looking for this car today and it is a well crafted car..that ae86 appears on wtac drifting..it uses a supra and hilux diff

I have also a look for the lotus evora which uses an aurion engine, interesting to see what gearbox they are using

Also watch out for carbon deposit in direct injection engine in golf, and also high engine oil consumption in turbo and supercharger model... Have a look at Google about the two problems above and you will find heaps...however, in Toyota side, cvt might have issues as some drivers report here, do a research on this

nice wheels, your car has a turbo kit already from US from around $3K, so it is another option..

Hi, This is a picture only thread, please do not ask questions here. Thanks