hello all,
I recently acquired a 3sgte with high hopes of finding the car to match. the motor seems to have spun a bearing and suffered severe detonation. I figure I can deck the head and use new valves and bore the block.
my concern is with the crankshaft bearing journals and crankshaft, can I get such a part? any tips on the buildup or where to find a good rebuild kit?
MR2BAD, i think you have it a little backwards. if he had a 5SFE crank, he could turn that down to accept 3SGTE rods and build a stroker in a 3S block. the 5S rod journals are actually larger than 3S rod journals.
MR2BAD, i think you have it a little backwards. if he had a 5SFE crank, he could turn that down to accept 3SGTE rods and build a stroker in a 3S block. the 5S rod journals are actually larger than 3S rod journals.
-Mike
yep, you are 100% correct. that was backwards....thanks Mike good thing you saw this...
I could use a 5sfe crank? thats news to me. wouldn't a high compression motor with boost be very sensitive. I was looking to up the boost in the future.
A stroker motor is an engine that utilizes a different crank to achieve more displacement with the same engine block. An engine fitted with an altered crankshaft that has a larger stroke increases the engine's size without increasing the size of the block.
the easy way to stroke the 3SGTE is to use the crank from the 5SFE.
It requires a bit of machinging on the crank, but it fits and turns your 2.0 liter into a 2.2 liter.
How would you like 10% more engine?
It does this by stroking (pulling) the piston down farther so the combustion chamber is physically larger.
if the crankshaft is pulling the piston down farther to get more air, then it also is pushing the piston up higher resulting in higher compression. am I right? from my view, high compression works good for naturally aspirated motors. on a blown engine, one would prefer to lower the compression. is this right or am I ass backwards? if anybody has done this successfully, I would love to hear about it. the 3sgte is a freewheeling design from what I know, would stroking it make it an interference angle motor?
OMNI, CP Pistons make a set specifically for use with OEM 3S rods and 5SFE crank. you can get them in either 8.5:1CR or 9.0:1CR. if you run higher compression than stock, you will get faster spool, better off-boost torque but you won't be able to ultimately run as much boost as a low compression engine. FWIW, i chose the 9.0:1CR pistons from CP for my stroker.
the 3SGTE *is* a non-interference engine from the factory. due to my machine work on my head, block, and my oversized valves, mine is now an interference engine. the stroker crank had nothing to do with making the engine interference. the pistons that came out were level with the block deck. the ones i put in during my rebuild were also level with the block deck.
Actually, if you do use the 5sfe crank, the pistons will not only cause higher compression, but they will penetrate into the head. If you do a stroker, you have to get the CP pistons since the writ pin is higher in the piston, or have custom ones made with the same attribute. The higher writ-pin gives the same stroker with the same compression. (8.5 i believe).
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if he had a 5SFE crank, he could turn that down to accept 3SGTE rods and build a stroker in a 3S block. the 5S rod journals are actually larger than 3S rod journals.
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