GEN IV 3S-GTE differences

[KiwiMR2]

The problem with the CT20B is that you basically can't upgrade or rebuild them, at least from what I've found available in NZ.

I had quite a long discussion with Kruncy about upgrading the CT20b....as a comparrision with the Fensport upgrades, he said he has done a few Caldina ones and could do a MR2 one as well, NZPC forums is down so once it's up I'll post his comments

Cheers
KiwiMR2

He said:

hahahaha, i like the way they say they put in a 360 kit, they are 360 standard!!!! as far as the upgrade goes it looks like they use a ihi comp wheel which doesnt need a thicker shaft or they are using a ct26 shaft.
as far as comp wheel being up to 350hp and 48mm that just happens to be the same as an evo large 16g wheel. i have done upgrades on the caldina but using the mr2 comp wheel but if someone wonts me to follow it thru i can look into it

Cheers
KiwiMR2

[KiwiMR2]

However if you must modify a Toyota turbo, why not start with the better turbo anyway, both the Blitz K1-380v and the Power Enterprise PE-1919 are modified CT20B's, K1 is a KKK CHRA (Centre housing & Rotating Assembly) rated at 380PS and the PE-1919 is an IHI CHRA rated to support 400PS so it's more than enough to tax the 540cc injectors.

Were would be the best/cheapest place to buy one of these??

Cheers
KiwiMR2

[Wolf_Tm250]

Now back to the topic at hand.

The manifold, from the top left there is the PCV vent from the cam cover, then the outlet pipe for the brake booster. Just below that is the fitting for the MAP sensor (directly above) and FPR (on the end of the fuel rail), in the centre of the plenum there is the Manifold Temperature sensor. Black plastic thing at the bottom of the throttle body is the Idle Speed Control (ISC) valve

I really love this manifold, would be perfect for my ATA FMIC...

are we REALLY sure it doesn't bolt on 3rd gen head ?


Ciao ciao

[fivebob]

However if you must modify a Toyota turbo, why not start with the better turbo anyway, both the Blitz K1-380v and the Power Enterprise PE-1919 are modified CT20B's, K1 is a KKK CHRA (Centre housing & Rotating Assembly) rated at 380PS and the PE-1919 is an IHI CHRA rated to support 400PS so it's more than enough to tax the 540cc injectors.

Were would be the best/cheapest place to buy one of these??

The Blitz is no longer produced Wildcard must've got one of the last few made.

The PE1919 is available through TakaKaira @ 248,000Yen or from http://www.madpsi.net/MR2PEKit.htm @ $US2211. However if you look at the torque curve I'm not sure you'd want one as it doesn't make 200 lb.ft until 4500rpm if this graph is to be believed (Which is doubtful seeing that they used a ratio of 4.100 which doesn't equate to any known SW20 gear ratio)

[fivebob]

I really love this manifold, would be perfect for my ATA FMIC...

are we REALLY sure it doesn't bolt on 3rd gen head ?

It uses the same gasket so it will fit on a Gen III head, though as it's a Japan only model you might have problems getting one in Italy.

Part # is 17101-88580 if you want to try and order one

[Wolf_Tm250]

I really love this manifold, would be perfect for my ATA FMIC...

are we REALLY sure it doesn't bolt on 3rd gen head ?

It uses the same gasket so it will fit on a Gen III head, though as it's a Japan only model you might have problems getting one in Italy.

Part # is 17101-88580 if you want to try and order one

Hey, wait a moment !!!!

Are you sure they use the SAME gasket ?

That would be a GREAT news !

I'm asking you because I do have a contact in Japan that could easily send this part in Italy to me, but he told me that it won't fit on my 3rd gen head.... by the way he owns an ST202...

Are you REALLY sure ?
I wouldn't like to try it won't fit, because I know it's a very expensive toy !!!!

Ciao ciao

[KiwiMR2]

The PE1919 is available through TakaKaira @ 248,000Yen or from http://www.madpsi.net/MR2PEKit.htm @ $US2211. However if you look at the torque curve I'm not sure you'd want one as it doesn't make 200 lb.ft until 4500rpm if this graph is to be believed (Which is doubtful seeing that they used a ratio of 4.100 which doesn't equate to any known SW20 gear ratio)

Sweet...thanks It's not for me so not to worry.

Cheers
KiwiMR2

[fivebob]

Part #'s for the gasket are the same, 17177-88460 according to;

ST215
http://www.japancats.ru/toyota/details. ... 2&scr=#b17

& SW20 (diagram is for Gen II but part # is Gen III)
http://www.japancats.ru/toyota/details. ... 0&scr=#b24

But if you're looking for a trick manifold you might like to wait until the C/F one is available from http://www.advancedinductionresearch.com/ in the US. Not sure what the configuration is but it is for a Gen III and is discussed in this thread (you'll need to join to view it) http://www.mr2oc.com/showthread.php?s=&threadid=15743 Carbon Intercoolers sound trick too

[Mr Revhead]

that gasket is the same one for:

rav4 with 3sge from 96
caldina 3sge st195 95 on
caldina 3sgte st215 st246 late 97 on
mr2 3sge late 93 on
mr2 3sgte late 97 on

and the same for celica, corona and curren for the same years (give or take a month or so) as above.
so if you have one of those engines then that manifold should fit it

[Wolf_Tm250]

Thank you mates !!

Ciao ciao

[KiwiMR2]

Hmmmmm, is it just a US thing with regards to the CT20B vs CT26?? Seems Im getting a bit of shit on some UK forums

They seem convinced the CT26 is far superior once upgraded.....it was suffering problems due to its intercooler not getting air flow - allowing for about a 15% transmission loss his car made about 272rwhp at 18psi on a 28psi capable ct26. That turbo isnt clipped either because he wants quickest spool. & The only difference between the ct26 and the ct20b if you are having a hybrid made is that you will need the ct26 compresssor housing if you want to go for a very large compressor wheel (over 48mm i think). As JJ says, the ct20b cannot be machined out as much as the ct26 (compresssor side). The exhaust housings are the same (once made to hybrid spec anyway).

Basically it's just a housing and it all gets machined during the rebuild anyway, it doesn't matter whether it has ct20b stamped on it (well toyota) or ct26 it will have the same amount off work done to it and will have the same internals once rebuilt. The only restriction is the ct20b compressor housing cannot be machined to house anything larger than 48mm so if you are going for a big wheel you will need a ct26 compressor housing

Theres also a minor discrepancy between our RR's and the US RR's - their rollers always seem to yield results about 10% higher. Lol ... example, a fella over there recorded runs of 260-270rwhp with a CT20b, downpipe, exhaust and IC at 16 psi on a rev 2 with no fuel tuning - over here that'd be 260-270 at the fly (if he was lucky).

Cheers
KiwiMR2

[fivebob]

at 18psi on a 28psi capable ct26.

ROTFLMAO that's the best laugh I've had all week

BTW how do they measure HP at the flywheel, that should tell you a thing or two about the veracity of their claims

[KiwiMR2]

ROTFLMAO that's the best laugh I've had all week

BTW how do they measure HP at the flywheel, that should tell you a thing or two about the veracity of their claims

True....I missed both of those!!

Cheers
KiwiMR2

[KiwiMR2]

Seems this is the car with the "28psi capable ct26"

http://www.madcat.co.uk/mystory.html

Owens stage 4 CT26.

Cheers
KiwiMR2

[fivebob]

Yep the boost graph surely looks like that CT26 will pull 28PSI (not). Notice the downward trend from 4500rpm, typical CT26 turbine. Of course I'll believe his excuse they had to limit it to 17PSI cause the I/C got hot, thousands wouldn't

IMHO that's not the graph of properly controlled boost curve.



But this is what really makes me laugh



6.5° advance at 978RPM, .88Lambda. No wonder with a pulsewidth of 2.2msec on 850cc injectors (in reality it's probably richer than that but the 264's will cause it to read leaner by pumping air through).

To top it off he's using the really old Motec logging software (probably the old ECU software as well) . Yep really knows his stuff, I better ship my car over there right away and get it tuned by an expert

[Wolf_Tm250]

Hello,

given that I can see no more japancats.ru site ( only me ?? ),
is there anyone that could give me, for Caldina's intake manifold, throttle body's gasket and cable-bracket part numbers ?

Thank you !!!!

[TWSTD]

Re CT20b vs CT26 upgrades - its kind of an aside, but i will soon be fitting a newly rebuilt / upgraded (Motorsport Engineering) steel CT26/T04 (48.5 inducer / 86 exducer) to the caldina. Im told this setup is capable of around 380HP at around 18-20psi boost (according to Steve who did the build). Will be interresting to see how it goes. Is this similar to what you have twolitre?

[TWSTD]

here she is....

[Dell'Orto]

Whats his contact number? I need to get my turbo rebuilt/highflowed.

[TWSTD]

I think its 8107009 - i can confirm that on monday as its on my wall at wk