Getting more power

[loudstealthGT-Four]

twincharge ... best of both worlds. though havent seen one yet on a 3s.

Because nobody is "reckless" enough to put something that much more complex and expensive for minimal gain.

i know someone thats twincharging a 5sgte

[Akane]

twincharge ... best of both worlds. though havent seen one yet on a 3s.

Because nobody is "reckless" enough to put something that much more complex and expensive for minimal gain.

i know someone thats twincharging a 5sgte

can't wait to hear the results

[RomanV]

Errr what about that ST205 celica that had the fastest time up the hill in that UK hillclimb?

Was a WRC motor with turbo and rotrex supercharger, 700hp or there abouts.

[LEAKER]

Ok cool, I'm thinking 350hp at wheels with full boost at approx 3500rpm as a new realistic goal. I will go link g4 as per the advice, 1000cc injectors, fuel rail, fpr and 264 cams. Unsure of what turbo ill get yet. Is a ball bearing really of any advantage over journal?

[Lith]

If you aren't shy about spending a bit of money then I suspect an EFR6758 would be the best bet, they spool slightly better than Garrett GT2871R/HKS GT-RS (what Distrb runs on his Beams motor) and can flow a more air.

There will be work needed to get it all fitting, they are quite a "long" turbo but from reports of those I know of using them - very impressive all rounder.

Major downside - not cheap, at all: http://www.full-race.com/store/turbos/borgwarner-efr/borgwarner-efr-6758-turbo.html

Ball bearings are mainly an advantage in terms of transient response as opposed to outright "when the turbo comes on", though the slight bit less exhaust energy required to turn the shaft actually can have an effect on the engine's ability to breathe as well.

Ball bearings aren't the be all though, compressor/turbine/housing design
can all add (or detract) from spool/response - some manufacturers put their focus on improving their design on different areas and often end up with similar overall effects. In the turbo size area you are looking at, plain bearing Mitsubishi based turbos are one of the best options!

[Heylin]

Ok cool, I'm thinking 350hp at wheels with full boost at approx 3500rpm as a new realistic goal. I will go link g4 as per the advice, 1000cc injectors, fuel rail, fpr and 264 cams. Unsure of what turbo ill get yet. Is a ball bearing really of any advantage over journal?

Most aftermarket turbos tend to be ball bearing these days anyway.

Id seriously consider the ATS, KO Racing or EMS powered 3SGTE kits, the fact they come with proven dyno charts for your specific application is a bonus as you will have a fair idea of the capability provided your supporting mods are of equal or greater spec.

In the MR2 im running 275 rwhp at the moment on grippy tyres 225/40/17 Falken FK452 on 8" wide rims and can break traction in the dry between 50-80 kmh.

In the wet requires good discipline with the right foot... so yeah 350 is going to be quite mental in a celica, although its an all trac isnt it ? so mabey not.

[Malcolm]

In the MR2 im running 275 rwhp at the moment on grippy tyres 225/40/17 Falken FK452 on 8" wide rims and can break traction in the dry between 50-80 kmh.

In the wet requires good discipline with the right foot... so yeah 350 is going to be quite mental in a celica, although its an all trac isnt it ? so mabey not.

Sounds like you need an LSD, a wheel alignment or some actual good tyres. 275rwhp should not be spontaneous loss of traction in an SW20.

P.s. they're only called Alltracs in the USA.

[Akane]

In the MR2 im running 275 rwhp at the moment on grippy tyres 225/40/17 Falken FK452 on 8" wide rims and can break traction in the dry between 50-80 kmh.

How? I'm running 292 rwhp with 700nm rwtq, 235/45/R18 and still won't break traction in the dry unless the road is uneven, then it's just a ever slight chirp.

Different story if you don't point it straight though.

[Lith]

Hell I needed over 350whp in a Skyline before I had any issues with 2nd gear in a straight line, I'd hope an MR2 would go over 400whp fine if everything was decent.

[Heylin]

In the MR2 im running 275 rwhp at the moment on grippy tyres 225/40/17 Falken FK452 on 8" wide rims and can break traction in the dry between 50-80 kmh.

How? I'm running 292 rwhp with 700nm rwtq, 235/45/R18 and still won't break traction in the dry unless the road is uneven, then it's just a ever slight chirp.

Different story if you don't point it straight though.

You know what i think I know I had pumped my rears up way to hard like 40 psi. Had been having handling issue for a while and recently traced it to worn strut tops, harder tyres seemed to help.

Im picking the tyres arent sitting squat enough on the road and cuasing me to lose grip

Prior to my 275rwhp I had 260 and no issues.

Mabey it isnt tyres at all, could be the diff putting more power to one than the other, definately feels like slipping tyres though.

[LEAKER]

my supra used to break out if i double clutched into 2nd but once traction was gained it was sweet from there. That had shit tyres on it though. In the wet was a different story.

The issue i have with the ATS kits is that they include things like "rom Tunes" and blow off valves and shit that i already have or don't want/need.

I would prefer to do it myself. Being an engineering student with a reasonable mechanical knowledge and a diy attidtude i'd prefer to just get a good general perception of what works and then i'll do some serious research into the best options for my needs.

So what your saying about evo turbos, would a decent hybrid evo turbo be worth a thought?

[LEAKER]

In the wet requires good discipline with the right foot... so yeah 350 is going to be quite mental in a celica, although its an all trac isnt it ? so mabey not.

Uh yeah it's a gt4. FWDs aren't my thing!

[RomanV]

How? I'm running 292 rwhp with 700nm rwtq

Your atw torque figure changes depending on what gear you're in.

A 4AGE has probably got 700nm, in first gear. :p

[Al]

Don't f$%k around with single plate clutches.

Go twinplate from the start.

Yeah when I was drag racing my old mr2 with a decent launch I had my foot flat for the whole run, no wheelspin at all on stock 14s with 205/60R14s....pulling 110mph traps it had to be 200rwkw+.

[LEAKER]

its got a 5puk brass button which is only about 1500km old. i think that will do.

[Akane]

How? I'm running 292 rwhp with 700nm rwtq

Your atw torque figure changes depending on what gear you're in.

A 4AGE has probably got 700nm, in first gear. :p

Mine was done in 4th lols.

Wildcard barely broke into the mid 550's if i remember correctly, and he had a better setup

So what your saying about evo turbos, would a decent hybrid evo turbo be worth a thought?

The TD05 "big 16G" was all the rage, but why settle there when you can go TD06-20G, which I also recommend.

[LEAKER]

new thought, at the risk of being shot!

What would hapen if i was to fit some sort of twin turbo setup. maybe 1jz turbos?

[Akane]

new thought, at the risk of being shot!

What would hapen if i was to fit some sort of twin turbo setup. maybe 1jz turbos?

A single GT3071R will outspool and outflow it.

[LEAKER]

that was easy

[MAGN1T]

A twin scroll turbo would be the way to go, even something second hand off a late model Evo. You'd just need a custom manifold, stick with the internal WG.
That way you'd get quick spool up for good midrange.

Steve