so i recently bought a 91 na mr2 and i want to swap a 3sgte in it. i need to know what do i need? can i use stock mounts os should i get new ones? are they bolt on or do they need to be customized? what kind of intercooler do i need? what size piping? i plan to up the boost so what would be the best thing to get an afc or a stand alone? what is a boost controller i usume i need that to... i know ineed to get the turbo wheel hubs and axels do i need the turbo brakes to? any advice would be great
1.)Complete 3sgte engine.
a. complete block with pistons, rods, crankshaft, caps. bearings and flywheel.
b. complete cylinder head with both camshafts, caps, both cam gears and distributor.
2.) Exhaust Manifold
3.) Turbocharger w/wastegate acuator
4.) Turbo Oil lines (in & return)
5.) Waterlines to Turbo
6.) Water bypass hardlines
7.) Downpipe
8.) Intake Manifold w/throttlebody
9.) Fuel Pump
10.) Fuel Rail, Fuel Injectors and Fuel Pressure Regulator
11.) Intercooler piping,bypass valve,couplers, clamps
12.) Intercooler w/fan
13.) Loom(wire harness)
14.) Transmission with clutch, throw out bearing and pressure plate.
15.) 3sgte ECU
You will only need to upgrade fuel system if you use a different turbo than the stock CT26.
Your stock brakes will be fine as long as they're in good condition.
Try to get the stock piping from the donor MR2.
I'm in the same boat as you at the moment, except my engine died so I'm changing to turbo aswell.
I've found a Gen4 3SGTE, will this fit in the MR2 without modification? will my n/a gen1 gearbox bolt on? (I will change gearbox when I get some more money, just want it to run first).
Thx MR2Jedi, that has really helped a lot.
He quoted me a 3sge and then the gen4 3sgte. So I asked if he had a gearbox for it aswell.
"Hi the quote is all about the engine not the gearbox,
besides which the gearbox is 4wd and not suitable in anyway for your mr2."
So now I'm questioning, because of the 4wd gearbox?
you familiar with tiger japanese? they got a 3s motor on there its for 1700 could you tell me it i got that what else would i need? cause it comes with alot of stuff
Ah, I see. Neither of those are imported to North America
Quote:
Originally Posted by Deutscher
Dw... I'm guessing it's just a Gen4 body but the engine is still rev3. It's prob just got lower km's.
Idunno
Quote:
Originally Posted by Deutscher
The Options I have are:
Rev2 3SGTE = AUD$1850 including shipping
3S-GE Beams + Gearbox = AUD$3050 including shipping
Rev3 3SGTE = AUD$3550 including shipping
Which would you go?
1st choic-Rev2 3sgte(much more upgradable)
2nd choice- 3sge Beams- -A rare and awsome N/A motor. I would be concerned about parts availability. They may be easier to get in your part of the world. I don't know. I would research that 1st.
you familiar with tiger japanese? they got a 3s motor on there its for 1700 could you tell me it i got that what else would i need? cause it comes with alot of stuff
different internal engine parts, e.g. pistons, con-rods etc.
turbo charger changed from Toyota CT26 to CT20B (same intercooler though).
boost pressure raised from about 10 to about 13 PSI.
power output raised from 220 to 240 BHP.
compression ratio slightly lowered.
injector size increased from 430cc to 540cc.
fuel cut threshold raised from about 12 PSI to about 18 PSI.
head and inlet path completely redesigned. TVIS removed, 8 'independent long ports' reduced to 4.
throttle body increased from 55mm to 60mm.
inlet valve lift increased from 8.2 to 8.7.
different, smarter engine ECU, more tolerant of poor fuel, different connector pin out.
air flow meter removed.
intake manifold inlet air temperature sensor added. i.e. after turbo and intercooler.
ECU now modulates the turbo VSV to achieve variable control of boost pressure rather than either open/full or closed/reduced. Control of boost now quite subtle when ECU is unhappy because of temperatures, detonation, speed, etc.
location of valve shims moved (someone said this was to stop problems with them falling out). If the manual is to be believed, this makes adjusting the valve clearances a much bigger job as on the revision 3 it involves removing the camshafts (might as well replace the timing belt whilst you're at it).
exhaust valve clearance increased by 0.08 mm (probably. valve clearances is one question I'd like answered direct from Japan. They are probably the same as the UK GT4s, but it would be nice to be sure).
oil pan changed from a one piece pressed steel part to a two piece affair, the upper half being aluminium, the lower half being pressed steel.
No. 1 compression ring now described as 'stainless steel' in GT4 manual/supplement instead of just 'steel'. Oil ring is described as 'stainless steel' instead of 'a combination of steel and stainless steel'. No. 2 compression ring remains described as 'cast iron'.
idle speed perhaps slightly reduced (need to check this out on a rev 1 or 2 car, my stickers say 750 rpm, I've a feeling rev 1 & 2 was 800 rpm).
exhaust part numbers changed. Revision 2 part number for the front pipe is superceeded by the revision 3 front pipe part number. Back-box part numbers different. Unknown to me whether they are actually different.
Coolant drain plug added on cylinder block (on older engines the manual says to disconnect a by-pass hose when changing coolant).
1st choic-Rev2 3sgte(much more upgradable)
2nd choice- 3sge Beams- -A rare and awsome N/A motor. I would be concerned about parts availability. They may be easier to get in your part of the world. I don't know. I would research that 1st.
I think I've ruled out the BEAMS, because it's N/A, and I don't know if future upgrade to turbo would be easy or cheap.
I wasn't really planning on upgrading the 3sgte. It's going to be my daily and for the time being I am officially broke, building a house and going to uni.
Why do you say the rev2 is much more upgradable? compared to the rev3 u mean? I thought they were quite similiar.
I was looking for the better stock engine & most reliable. I don't mind spending the extra $1500 for something that's going to last me longer (it's only 2weeks worth of work).
I think I've ruled out the BEAMS, because it's N/A, and I don't know if future upgrade to turbo would be easy or cheap.
I wasn't really planning on upgrading the 3sgte. It's going to be my daily and for the time being I am officially broke, building a house and going to uni.
Why do you say the rev2 is much more upgradable? compared to the rev3 u mean? I thought they were quite similiar.
I was looking for the better stock engine & most reliable. I don't mind spending the extra $1500 for something that's going to last me longer (it's only 2weeks worth of work).
They are similar, but as you listed above, there's all those differences too.
Here in the North America, there's a big aftermarket support of performance parts for the Rev 2 3sgte. If you have the money , you can easily modify your MR2 to 350 reliable HP .
You may have the same support for the Rev 3 on your side of the world. I don't know. It's something you should consider if you're planning on upgrading in the future.
They are similar, but as you listed above, there's all those differences too.
Here in the North America, there's a big aftermarket support of performance parts for the Rev 2 3sgte. If you have the money , you can easily modify your MR2 to 350 reliable HP .
You may have the same support for the Rev 3 on your side of the world. I don't know. It's something you should consider if you're planning on upgrading in the future.
Australia is like space... lots of nothingness. It'd be hard enough to find parts for either rev2 or 3. I can't even find an engine/halfcut or anything for a mr2 in Perth. Called wreckers/importers, nobody has anything.
Think I'll go with the rev3, for stock it should be better than rev2. I'm not looking for huge power. Just a daily, nice car. I'll gather information I can from this supplier.. make sure I've got everything I need for the conversion.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
ToyotaNation.com is an independent Toyota/Lexus enthusiast website. ToyotaNation.com is not sponsored by or in any way affiliated with Toyota Motor Sales, USA, Inc. The Toyota, Lexus and Scion names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
Forum for every generation Toyota MR2. Including the AW11 and SW20.
Linear Mode
