Beams 3sge + ST205 CT20b = ?

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Beams 3sge + ST205 CT20b = ?

Postby DeeCee » Wed Aug 15, 2007 10:40 am

Wondering if a st205 ct20b can be fitted to a beams 3sge in an altezza.

I have a manifold and ct20b turbo from a st205 and the ct20b needs a rebuild and i'm looking at a new car for myself anyway.

1. would the manifold bolt up or would something have to be made up for the application.

2. potential of a ct20b on a beams?

3. i assume aftermarket ecu.. suggestions?

cheers

Dave
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Re: Beams 3sge + ST205 CT20b = ?

Postby Distrb » Wed Aug 15, 2007 11:08 am

DeeCee wrote:Wondering if a st205 ct20b can be fitted to a beams 3sge in an altezza.

I have a manifold and ct20b turbo from a st205 and the ct20b needs a rebuild and i'm looking at a new car for myself anyway.

1. would the manifold bolt up or would something have to be made up for the application.

2. potential of a ct20b on a beams?

3. i assume aftermarket ecu.. suggestions?

cheers

Dave


1 - not sure if the factory manifold would bolt up, but it would position the turbo around the wrong way, and possibly quite a long way rearward, making the downpipe rather tight. a better designed exhaust manifold would be the go here.

2 - could be alright. beams 3sge head flows very well up high in the rev range, so the ct20b in stock form could choke it a bit.

3 - powerfc is the most cost effective option (as they make a plugin) i also know the new g3 linkplus will be able to handle vvt-i, but would require you to wire in. Greddy e-manage will also be able to handle it, but its a piggyback, not a stand alone ecu..
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Re: Beams 3sge + ST205 CT20b = ?

Postby diss7 » Wed Aug 15, 2007 11:27 am

Distrb wrote:
DeeCee wrote:Wondering if a st205 ct20b can be fitted to a beams 3sge in an altezza.

I have a manifold and ct20b turbo from a st205 and the ct20b needs a rebuild and i'm looking at a new car for myself anyway.

1. would the manifold bolt up or would something have to be made up for the application.

2. potential of a ct20b on a beams?

3. i assume aftermarket ecu.. suggestions?

cheers

Dave



2 - could be alright. beams 3sge head flows very well up high in the rev range, so the ct20b in stock form could choke it a bit.



I disagree with this point.

I'd put good money on the beams popping before the ct20b not being able to feed it enough air.
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Postby Dell'Orto » Wed Aug 15, 2007 12:08 pm

With stock compression anyway. I'd imagine if you were to turbo one you'd at least use a thicker headgasket.
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Postby DeeCee » Wed Aug 15, 2007 12:11 pm

yep - will look at doing a thicker gasket to reduce compression
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Postby sergei » Wed Aug 15, 2007 12:27 pm

DeeCee wrote:yep - will look at doing a thicker gasket to reduce compression

Thicker headgaskets do not reduce detonation.
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Postby DeeCee » Wed Aug 15, 2007 12:30 pm

sergei wrote:
DeeCee wrote:yep - will look at doing a thicker gasket to reduce compression

Thicker headgaskets do not reduce detonation.
\

i thought it did? meh - i know nothing - hence why i'm asking and talking and reading and researching :lol:

what you think sergei? ct20b on a beams 3s? or go larger ;)
and i'll hit you back tonight with the carputer stuff - too busy last night
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Postby sergei » Wed Aug 15, 2007 12:50 pm

On stock beams? CT20b would be big enough. I think it actually will be too big.
But I tell you it will not last long.
You will need to lower compression substantionally (Thicker head gasket lowers compression but it does not reduce chance of detonation because it reduces swirl).
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Postby DeeCee » Wed Aug 15, 2007 12:59 pm

sergei wrote:On stock beams? CT20b would be big enough. I think it actually will be too big.


pwwwwrrr... psssttttt.... boooom! DOH!

well, there is always the option of supercharging.. which my friend and his dad are doing to their race car..
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Postby strx7 » Wed Aug 15, 2007 6:45 pm

go the honda route, larger turbo, running less boost. higher compression will spool a larger turbo faster, and means more HP for the same PSI, or less boost for same HP than a lower compression engine.
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Postby rollaholic » Wed Aug 15, 2007 6:45 pm

you'll still want lower compression on a supercharged car :)
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Postby postfach » Wed Aug 15, 2007 7:34 pm

strx7 wrote:go the honda route, larger turbo, running less boost. higher compression will spool a larger turbo faster, and means more HP for the same PSI, or less boost for same HP than a lower compression engine.


A friend of mine once had a civic with a GT35/40 on a B16A, ran low boost (i think it was around 9psi or something) but it made 200+wkw
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Postby DeeCee » Wed Aug 15, 2007 7:54 pm

strx7 wrote:go the honda route, larger turbo, running less boost. higher compression will spool a larger turbo faster, and means more HP for the same PSI, or less boost for same HP than a lower compression engine.


so you think viable? or maybe just go to a td03/04?

My friend who is suprcharging his racecar showed me this just now.. i have no idea what portends :twisted:

http://shop.edoperformance.co.uk/power- ... -6528.html
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Postby Alex B » Wed Aug 15, 2007 8:46 pm

Its an expensive idea if you cant do the work your self. S15 Spec R would be cheaper.
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Postby DeeCee » Wed Aug 15, 2007 8:56 pm

well i would be doing as much work as i can myself.. the celica issue was to get engine rebuilt.. which i can't do myself, nor have the room to do it.

and i have guidance if i did want to do the altezza engine.. or i just buy woolly's car..
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Postby Distrb » Wed Aug 15, 2007 10:02 pm

DeeCee wrote: or i just buy woolly's car..


much better idea!
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Postby DeeCee » Wed Aug 15, 2007 10:28 pm

but he wants mid 20's.. which is waaayyy out of my budget lol
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Postby strx7 » Wed Aug 15, 2007 10:49 pm

DeeCee wrote:so you think viable? or maybe just go to a td03/04?


I'd go with a 'medium' T04 or a TD06,
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Postby Alex B » Wed Aug 15, 2007 10:55 pm

To be honest if doing a rebuild is out of your leauge then so is turboing. To do it right you would want 3S-GTE pistons so thats pretty much a rebuild there. What would a good altezza cost? Say 15K?? Stand alone ECU Say a linkplus G3 with tuneing would be around the 3k mark, then upgrade brakes, fuel system, turbo, intercooler, pipeing, BOV, random other little bits. Makes mid 20's sounds a rather good deal for a turbo altezza.
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Postby sergei » Wed Aug 15, 2007 11:35 pm

In my opinion in the long run it would be cheaper to stick stock 2JZ-GTE in it, than turbo-ing BEAMS engine. It also would be nicer to drive.
Or even 1JZ-GTE, they are nice motors and are much cheaper than 2JZ-GTE.

Just a question here: Are we talking about Altezzas right?
If it is about BEAMS celica, than forget what I said above :lol:
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