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PostPosted: Fri May 17, 2013 11:03 am 
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The question is, for a cost effective result to achieve 400-500hp, do I go for the stronger rev 4 engine or do I go for a 2GRFE V6 and FI it?

The question is, which engine would you choose?

With the rev 4 it's a bit of an unknown on how much the block can take as no one in with a Caldina runs them at a high power.
But transplanting a rev 4 3STGE requires much less messing around and saves cost.

With the V6, woodsport thinks with a FI, to could produce impressive results.
But then take in consideration it's size and faffing to get it to fit then the added cost of a FI supercharger or Turbo it could mount to quite a high bill.

Thoughts please?


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PostPosted: Fri May 17, 2013 11:09 am 
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I think access and maintenance would be easier with the caldina engine, on the other hand I love the sound of the V6 and it will be much more responsive with supercharger over turbo. As the yanks say, there's no substitute for cubic inches.

As for what I'd do - I would at least do some detailed research on the V6 and see how viable it is. I know at least one person on CCUK has a V6 in a Gen 6 so may be worth asking on there too (if you haven't already).

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PostPosted: Fri May 17, 2013 11:34 am 
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Yeah I think it was Spot in the CCUK who had the V6.
I recall asking a few years ago and it seemed straight forward but tight. His was not FI just a transplant and I think the only issue was steering rack space? Also his was not a GT4.


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PostPosted: Fri May 17, 2013 12:02 pm 
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I saw the car at one of Johns Guildford meets. It may be worth seeing if he still goes and have a chat with him.

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PostPosted: Fri May 17, 2013 12:59 pm 
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Was Steve Hall - converted a 1800cc ST to a 3000cc with a Camry 1MZFE iirc.
He also then bought a knackered 205 and was going to shoe horn a 4200cc Audi V8 in it - dont know if this got finished though

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PostPosted: Fri May 17, 2013 2:02 pm 
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As I always say, anything is possible with an angle grinder & welder.

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PostPosted: Fri May 17, 2013 4:09 pm 
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A 500hp 3S will be fairly hopeless on the road so if you're aiming for that go for the six pot

More displacement means much less turbo "here it comes"


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PostPosted: Fri May 17, 2013 8:49 pm 
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two_OH_five wrote:
A 500hp 3S will be fairly hopeless on the road so if you're aiming for that go for the six pot

More displacement means much less turbo "here it comes"



Very true, but mine is on boost by 3.5k
and I'm running a GT35 :D
Good mapper with good map is what makes the difference.

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PostPosted: Fri May 17, 2013 8:50 pm 
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Maybe a rev4 block with a 5S crank ;)

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98 Celica GT4 ST205
Full forged rebuild with Wiesco pistons, Crower rods, mildly ported head, 264/272 HKS cams, FMIC, PFC Pro, GT35 BB turbo, turbo back 3" system.
Currently running 1.6bar/520+bhp


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PostPosted: Fri May 17, 2013 10:34 pm 
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I'm not sure how much boost pressure the alloy 2GR-FE engine can take. I think it has thin-wall liners so you might have to re-liner the block to cope with turbo-supercharging. There is also the question of which gearbox can be used. You may require an adaptor plate to be made up.

With modern fast spooling GTX-style billet compressor wheels and turbo control I would go for a 3S-GTE build myself as this would be a lot less hassle and give you the sort of performance you are after.

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PostPosted: Sat May 18, 2013 10:47 am 
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All very good points to think about.
With the rev 4 3S, though is hardened, in honesty we still don't know how much more can it handle. I've scoured the Caldina forum Malaysia and spoke to an owner whilst I was there a few weeks ago, and the problem is, no one really tunes the Caldina that high to know even though they have one of the latest model 3S in their cars.

Sunny is the only member I know of here with a rev4 and he's pointed out many benefits of the new block but its unsure as to what power it'll eventually be running at or can handle.

With the 2GRFE, I suppose I can ask wood sport as to how much much FI can add and how well it copes, but I believe even hey haven't tried it yet as they've only transplanted it unmodified in MR2's.

I personally don't think there is a better sound over a V6 other than a V8 and the thought of greater displacement in a four makes me tingle in the rite places.
The other thing is I do want a greater top speed too.
But dare I try to wedge the V6 in now only to discover there is no room for a Turbo after all that work?

Is a NA v6 GT4 really a downgrade?

Wither way, I'd be looking at spending FI upgrades, cooling, custom piping and fuelling and engine management upgrades and some internals.


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PostPosted: Sat May 18, 2013 12:35 pm 
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Anything is possible with the right planning. If Spots car was a white model then i know for sure he broke it up and sold of the parts last year thou getting hold of him and having a good chat would be a very good idea. To increase the power, how about doing a bespoke twin turbocharger induction??? Staged with a small turbo and a larger turbo you wouldnt get cirtually any lag whatsoever.


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PostPosted: Sat May 18, 2013 3:25 pm 
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Do you allready have some tuningparts? like a EMS?
What is your budget?

If you want 400-500 bhp, a healthy gen 3 with ems and a bigger fuelpump would do it if you run a GT3071 or similar at 1.5, 1.6 bar. Maybe add some 264 or GSC 268 cams.
It's all in the tune.

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PostPosted: Sat May 18, 2013 4:16 pm 
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theres a bloke on the oc from up north looking at the same v6 transplant with the trd supercharger ill speak to him tomorrow at the meet to see if hes going that route as he lives near woodsport.


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PostPosted: Sat May 18, 2013 4:52 pm 
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I recall that someone mentioning that there is a TRD supercharger for that lump however im sure there are many compatible superchargers available at a fraction of the cost.
Excluding the lump its self, my budget is 5k.
Now I know this is all doable with the 3s but could the v6 produce a better outcome in terms of reliability and stability over cost?


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