3sgte Limits???

[o_man_ra23]

Yet - Every F1 and Indy motor does use rockers (or finger followers)....

The machining and engineering/balancing in them is just a touch better than those in off the shelf street engines...

Top end $1500+ each speakers use paper cones... and so do $10 cheapies... so why do people by the mid range $150 polypropelyne ones when the best use paper cones?? Surely a paper cone is a paper cone, just like rockers are rockers??

Please note the use of sarcasm in the analogy

Cheers, Owen

[aw11man]

3S bore is 86mm 5S bore is 87mm. Deck heights are the same though so the crank and rods could be swapped in with a set of 40 thou over 3SGTE pistons and it would work.

So it is possible to swap in 3s crank into 5s block ? I havent seen this before but this would be great not too keen on a longer stroke but over square would be cool.

[Joshstix]

Yep definately possible. Personally I'd go for the extra capacity though. There are people running 3S/5S strokers to 8500-9000rpm quite regularly these days so I don't think it would be too much of a problem. The other thing is when you get the 5S crank turned down to run 3S rods you can get a larger fillet radius machined into it since this is the weakest part of the 3S crank.

[JustenGT8]

i thought that the rocker failures in the sr20's were due to the rockers/lifter or whatever they are called being hollow thererfore the solid lifter conversion solves that problem

Nup, you are getting your bits confused. Solid lifters replace hydraluic lifters. hydraulic lifters pump up to clearance whereas solids are just that 'solid', and thus are clearanced somewhat like shims i imagine.

[Screamn_Sleeka]

3S-GTE limit is 7.21 seconds

http://microtechefi.com/microtech-ra...hp?champ_id=18

[strat]

TOP SECRET Toyota Supra (JZA80)
Engine: 3SGTE 2.2L
Output: 720ps/8500rpm
300km/h New Zealand High Speed run

[jfallen]

and then there is what you determin the pinnacle of 4 cylinder engines

the old BMW 1.5L 4Cylinder F1 motors. got your 1.5Mw of power from the 80's
it's horn
then they were banned in competition

Or for someting you could actually buy with a warrenty the BDTE 2.1L motor takes the cake. Out of the Ford RS200 Evo. 650HP out of the box, mid mount, 4WD, 0-100km/h in 2.1s all housed in some scafolding and Carbon Kevlar weighing in around a tonne.
Then they were banned


for NA it has to be the 8V per piston Honda 4stroke with oval pistons from the late 70's (that took them over 13 years to finally figure out it was a good idea but technically impossible) that was set to take on the 500cc 2strokes. pity the piston rings kept failing,
and then they were banned.


as for a production easily obtainable motor:
Turbo it's the Delta's motor-Cosworth YBT-FJ20

NA it's FC20-Cosworth anyting (BD and YB series)-4AG big port-Honda B-series

Jordan

Jordan

[Kyoto]

Put simply, the best 4cyl is the one that goes the hardest, is the most reliable, has decent aftermarket support...AND costs you 2/3 of sweet fuck all to acquire and maintain!

Whether or not this is a 3S i cannot say, but my Gen 3 has been good to me and thats all i can ask of it...

[4agte]

Nup, you are getting your bits confused. Solid lifters replace hydraluic lifters. hydraulic lifters pump up to clearance whereas solids are just that 'solid', and thus are clearanced somewhat like shims i imagine.

ahh nice i get it cheers + rep

[4agte]

the old BMW 1.5L 4Cylinder F1 motors. got your 1.5Mw of power from the 80's
it's horn
then they were banned in competition

yup agree awesome engine over 1100hp possibly even 1300 odd hp in qualifying and lasted for.........

Its easier to make big hp with boosted motors tho... the fact a 2ltr 4 n/a can make 240hp and reliably spin to 9k is awesome it wasnt that long ago that holden v8's were making less power with 5 ltrs

[Haynesie]

st215 gen 4 3s are not vvti! I own one, the st245 are vvti and sadly all auto and heavier than the st215. Gen 4's also were released from factory with the highest figures of the 3s being 195kw (flywheel). Yes the manifold and exhaust housing are cast as one on the gen 4's and are not backwards compatible to the gen3 (not that you would want too!) Aftermarket exhaust manifold = win

[jwebb2876]

there is no weakness in blocks or heads the only let down are the rods at the 500hp limit there a belt driven twin cam cam over bucket 4 banger in other terms it's got the good type of head unlike evos/sr20's with there rocker rubbish

umm, Evo 4G63's don't have rockers, they use the bucket/shim system

[Shifty]

Thread revival much?

[vidar540]

Hi there. I see that you people never mention 1gen 3sg engines, are they not good engines or just hard to find.

I have one waiting to live in the hood of my TA22 yoda.

[hamgatan]

thats because theyre pretty scarce now and don't make the kind of power gen 3's and above do. they only came in ST165 GT4's anyway.. so they're an ageing breed.