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3sgte stroker - 6G Celicas Forums

Topic #19698 37 posts Started by thedevilmaycrie
thedevilmaycrie
#1
im thinkin on making my spare 3sgte a stroker input please...

how do you build these with 5sfe... is it the 3sgte block, rods and pistons w/ a 5sfe crank shaved down?

-DMC
Junior
#2
3s block with 5sfe crank, rods, and pistons. There are 3sgte stroker kits in the market.
Supersprynt
#4
Jun makes a 2.2L for 3400
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1bwilson
#5
Its 5sfe block, rods,crank,pistons.
3sgte head, cams, intake manifold.....

You may have to drill out the some water jackets depending on the gen 5sfe block.
Member of Team 5sfTe
shid
#6
-Supersprynt+Dec 23, 2004 - 8:57 PM
QUOTE(Supersprynt @ Dec 23, 2004 - 8:57 PM)
Jun makes a 2.2L for 3400
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Yeah, I'd say his plan is cheaper. A lot cheaper.
Punch
#7
If you do it this is the best way to go 3sgte head & pistons
5sfe block, crank & rods this is the cheapest way & all your parts are stock!
1bwilson
#8
-Punch+Dec 24, 2004 - 9:44 PM
QUOTE(Punch @ Dec 24, 2004 - 9:44 PM)
If you do it  this is the best way to go 3sgte head & pistons
5sfe block, crank & rods this is the cheapest way & all your parts are stock!
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Think about it. 3s pistons are so much cheaper than 5s ones. If they fit the 5s block everyone would have either upgraded to stock or forged 3sgte pistons. Im fairly sure the 3s pistons will not fit. Maybe with the 3s head it'll work but Im still very unsure.

I however know for a fact that 5s pistons and 3s rods fit with no problem. The crank jurnals have to be turned down a bit but that is all.
Member of Team 5sfTe
Junior
#9
people, do some research. It is not easy to fit a 3s head on a 5s block. Further more, the 5s has a bigger bore and a longer stroke than the 3s. Hence to bore and stroke a 3s would require the changing of the pistons (bore) and changing of the crank and rods (stroke). You could fit stock 5s crank, rods and pistons. Spend the extra money and get better rods and pistons and use a 5s crank. Make sure to get it all balanced before install. Don't forget you'll have to get a machine shop to bore out the 3s a little.
FallenHero
#10
www.club4ag.com


go to tech and then look under 7ag/5ag info
celica3sgte
#11
I think Junior hit this one on the nose. lol. The 5s is a 2.2 liter and the 3s is a 2.0 liter. Go get the stroker kit. Even if you bore out the 3s block to be a 2.2 liter, the 5s rods aren't going to hold big amounts of boost.
Kwanza26
#12
-celica3sgte+Dec 27, 2004 - 10:21 PM
QUOTE(celica3sgte @ Dec 27, 2004 - 10:21 PM)
I think Junior hit this one on the nose. lol.  The 5s is a 2.2 liter and the 3s is a 2.0 liter.  Go get the stroker kit.  Even if you bore out the 3s block to be a 2.2 liter, the 5s rods aren't going to hold big amounts of boost.
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Junior and yourself actually have it the hard way. Not incorrect... but just mis-interpreted. There are versions of the 5S block that you can simply mate up the 3SG head to. Regardless of bore differences, so long as a proper head gasket is used, like an overbored 3SG gasket, it'll be fine. You can't bore out the 3SG block too much, nor can you drop in the 5S crank without some machining. I doubt the 5S crank and fit in the 3S block without some machining. From there, even with the stock 5S bottom, mild boost can be applied so long as the tuning is good. Stroking with the 5S bottom-end will be a whole lot cheaper than buying an aftermarket stroker kit for the 3SG.
"It's ok to be naked girl... I'm an artist!"1995 AT200 Celica ST:stocked out daily driver...1984 AE86 Corolla GT-SR5:silvertop 20V 4AGE project car jacked up with goodies...1991 SW2x MR2 n/a:bare bones hardtop model soon to be...
Punch
#13
user posted imageI have a stock 5s block that I took apart a some 3s pistons that came across in the shop I just got a 3sgte head , when I get some time to go down there I will try everything too make sure; but the pistons are the same size they fit the rods

This post has been edited by Punch: Dec 27, 2004 - 11:55 PM
Junior
#14
If you look at the specs for the 5sfe and 3sgte the differences in the lower end is the bore and stroke length. The bore difference is 1 or 2 mm. The main reason the 5s has a larger displacement is due to the stroke length. From what I know, from research done in the past, the 5s crank will fit right in. Its been debated, check the MR-2 forums, whether or not a 3s head can be mated with a 5s block. It can be done, but its not worth it.
Kwanza26
#15
-Junior+Dec 28, 2004 - 6:06 PM
QUOTE(Junior @ Dec 28, 2004 - 6:06 PM)
If you look at the specs for the 5sfe and 3sgte the differences in the lower end is the bore and stroke length.  The bore difference is 1 or 2 mm.  The main reason the 5s has a larger displacement is due to the stroke length.  From what I know, from research done in the past, the 5s crank will fit right in.  Its been debated, check the MR-2 forums, whether or not a 3s head can be mated with a 5s block.  It can be done, but its not worth it.
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I really doubt the 5S crank will simply drop in. The 5S crank is pretty big compared to the 3S... but whatever. Nothing against the MR-2 guys, but they're also the guys who claimed to have used S2000 shimless buckets to do shimless conversions on 5SFE's... when in fact, the S2000 doesn't even use buckets/shims... so don't take what they say as the gospel truth...

IMO, the 3SG base is far better anyway. Unless you're doing an all out drag motor with big torque as the goal, the 3SG is a perfect squared motor with some of the toughest factory rods... and the 5S bottom-end just can't match that without a lot of custom work.
"It's ok to be naked girl... I'm an artist!"1995 AT200 Celica ST:stocked out daily driver...1984 AE86 Corolla GT-SR5:silvertop 20V 4AGE project car jacked up with goodies...1991 SW2x MR2 n/a:bare bones hardtop model soon to be...
thedevilmaycrie
#16
geez nm to much trouble imo i think ill just give the 3s away... and no YOU cant have it...

-DMC

This post has been edited by thedevilmaycrie: Dec 28, 2004 - 3:12 PM
Supersprynt
#17
can i have it?
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thedevilmaycrie
#18
sry shes already spoken for... as long as he buys a gt...

-DMC

This post has been edited by thedevilmaycrie: Dec 28, 2004 - 3:33 PM
Junior
#19
I don't think people realize that a 2.2 stroker kit for the 3sgte has the same specs as a 5sfe pistons/crank/rods.
Kwanza26
#20
-Junior+Dec 29, 2004 - 10:56 PM
QUOTE(Junior @ Dec 29, 2004 - 10:56 PM)
I don't think people realize that a 2.2 stroker kit for the 3sgte has the same specs as a 5sfe pistons/crank/rods.
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Proof is better than assumption... but until some proof is provided... I'll stick to my gut.
"It's ok to be naked girl... I'm an artist!"1995 AT200 Celica ST:stocked out daily driver...1984 AE86 Corolla GT-SR5:silvertop 20V 4AGE project car jacked up with goodies...1991 SW2x MR2 n/a:bare bones hardtop model soon to be...
Junior
#21
what dictates the displacement of a motor? Its bore and stroke. If you look at the specs for the stroker kits on the market you'll see the bore and the stroke are identical to that of a 5sfe.
1bwilson
#23
-Punch+Dec 29, 2004 - 10:48 PM
QUOTE(Punch @ Dec 29, 2004 - 10:48 PM)
it's been done  look here
it's been done  if I get the parts & money I will do the same thing
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Chris K is who I got my pistons and rings from. Hes a VERY nice guy and is willing to go above and beond to help anyone out. My shop stayed in touch with him to keep my crank machined to his specs while installing my rods and pistons.
Member of Team 5sfTe
Kwanza26
#24
-Junior+Dec 30, 2004 - 4:23 AM
QUOTE(Junior @ Dec 30, 2004 - 4:23 AM)
what dictates the displacement of a motor?  Its bore and stroke.  If you look at the specs for the stroker kits on the market you'll see the bore and the stroke are identical to that of a 5sfe.
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That's not what I meant. You said rods/crank/pistons are the same. I highly doubt that. I doubt the crank journals are the same (5SFE vs JUN stroker), I doubt the rods are the size/length, I doubt the actual bores are the same, the 5SFE being an odd number (87.5mm). I honestly am not even sure if the 3SGTE piston pins are the same as the 5SFE (press fit). Again I'll say, I'll stick to my gut. Stroking with a stroker kit that costs more than the swap itself, or is the cost of 2-3 spare longblocks... just doesn't make sense... because the torque advantage just isn't that great.
"It's ok to be naked girl... I'm an artist!"1995 AT200 Celica ST:stocked out daily driver...1984 AE86 Corolla GT-SR5:silvertop 20V 4AGE project car jacked up with goodies...1991 SW2x MR2 n/a:bare bones hardtop model soon to be...
Punch
#25
I will do it to since you know him how can I get in touch with him???
1bwilson
#26
-Punch+Dec 31, 2004 - 12:54 PM
QUOTE(Punch @ Dec 31, 2004 - 12:54 PM)
I will do it to since you know him how can I get in touch with him???
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I dont think I have his email or his phone number any longer. Just create a post about him at MR2OC and he will show up. That will most likly be quicker than me finding the recepts.
Member of Team 5sfTe
Punch
#28
i did this set up with all stock parts an the car runs nows
Punch
#30
ATS Racing 2.2 Stroker

There is no replacement for displacement. By adding approximately 10% more displacement to the original MR2 engine customers are finding much quicker turbo spool up, better driveability, wider torque curves, and excellent low rpm response. The ATS 2.2 stroker short block is built from a 3SGTE block so there is no additional fabrication required for installation. All accessories, oil and water lines bolt up just like factory. Each 2.2 stroker short block includes:

3SGTE cylinder block - bored, checked, decked as necessary

5SFE crankshaft - machined to accept 3SGTE connecting rods. Cryogenically treated for strength and hardness.

Reconditioned 3SGTE rods
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