Supercharger upgrade - AE101 GTZ - need ideas

[Disco]

This is on behalf of a mate who has recently purchased a 1992 GTZ Trueno - very cool one too, has a nice big intercooler (still top mount which is a shame) but it's still only running 11psi (which i understand is stock, but I'm not sure)

Anyhow, he wants to upgrade the blower, make more boost..

Do toyota do a factory supercharger on anything that would suit?

I'm pretty sure that any larger supercharger is actually going to take more power to run than his current one so I've suggested he stick with the one thats on there but thought i'd put it to the masses..

and pulley kits - some better than others? - Are cusco ones the shit and where would you obtain some?


What do YOU suggest?

[Banga69]

how much has he got to spend? you cna do anything but im sure $$ will play a big part.

[aesc]

11psi is not stock, they run 8-9 standard so maybe he has a 164mm pulley on it.

He could put an SC14 supercharger on it, is a bit of work to make it fit as it has larger displacement, but the results would be good. Im not sure what you mean by 'taking more power to run', the engine would be able to run it sweet as. The sc14 s/c came off an old Soarer, not sure what model though.

Yip the Cusco ones are the best but are not easy to come by and are expensive ($1600 apparently). evil_si on here makes the 175mm pulleys by modifying the existing crank pulley and are very good, several ppl have bought them and swear by them

Might as well get in first, but I would suggest turboing it if hes keen on getting serious power. The supercharger no matter what you do will not be efficient at higher rpm, the power loss is very noticeable and is backed up by dyno results.

[Disco]

11psi is not stock, they run 8-9 standard so maybe he has a 164mm pulley on it.

Good stuff - useful

He could put an SC14 supercharger on it, is a bit of work to make it fit as it has larger displacement, but the results would be good. Im not sure what you mean by 'taking more power to run', the engine would be able to run it sweet as. The sc14 s/c came off an old Soarer, not sure what model though.

yeah, this was the idea -

by 'takes more power to run' I mean it's only a l'il 1600 so if you put a blower from an engine that is twice that, you'd think it would take more power from the engine to drive the supercharger so might be slightly less responsive for the split second until the charger starts spinning and compressing air... but if they work sweet then all good... will have a look and see what soarers you're talking about.

Yip the Cusco ones are the best but are not easy to come by and are expensive ($1600 apparently). evil_si on here makes the 175mm pulleys by modifying the existing crank pulley and are very good, several ppl have bought them and swear by them

True that - worth looking into - $1600 for some new pulleys is pretty up there...

might as well get in first, but I would suggest turboing it if hes keen on getting serious power. The supercharger no matter what you do will not be efficient at higher rpm, the power loss is very noticeable and is backed up by dyno results.

yeah, thats a given really.. turbo vs charger is always gonna come out turbo on top... really depends on your app.... this is gonna be a round town beater for the most part i'd suggest so charger will be better I think..

thanks aesc, I will await other responses

[Disco]

how much has he got to spend? you cna do anything but im sure $$ will play a big part.

Just had to say it didnt ya clint

[EVLGTZ]

might as well get in first, but I would suggest turboing it if hes keen on getting serious power. The supercharger no matter what you do will not be efficient at higher rpm, the power loss is very noticeable and is backed up by dyno results.

yeah, thats a given really.. turbo vs charger is always gonna come out turbo on top... really depends on your app.... this is gonna be a round town beater for the most part i'd suggest so charger will be better I think..

thanks aesc, I will await other responses

actually if ya change to a larger s/c or to a turbo on that versioned 4agze in my opinion you'll need to also go to an aftermarket ecu (to overcome the map 4agze timing issues) to get the best out of it. IF ya dont use aftermarket ecu (or some other timing altering device) then that power loss will be there whether its turbo or s/c. Therefore this power loss issue at higher rpms isnt really an issue if the s/c is upgraded AND ecu as well.

Bazz is helping Fred upgrade the s/c to sc14 on his one at the mo. Although I think hes running afm verison 4agze so he prob wont need to aftermarket ecu to resolve these timing issues. Might be an idea to talk to one of them. Larger s/c is a very cool idea and different from all those jumping on the 4agte bandwagon. Should produce some good results.

[Disco]

SC14 is from a 1G-GZE 2000 L6

Cool, thanks for that Jade... - you're running link right?

[Bazda]

yes thats right, freds sc14 we will be puttin on after uni finishes, also there seems to be 2 different types of sc14s, the difference is where the mounting brackets are on the sc14, if u get the wrong one then its very hard to install it and will hit the fire wall, if u get the right one u can still use the original bottom sc mount which actually lines the sc14 up pretty perfect!!
think this conversion will cost him just over 2K fitted.

[aesc]

IF ya dont use aftermarket ecu (or some other timing altering device) then that power loss will be there whether its turbo or s/c. Therefore this power loss issue at higher rpms isnt really an issue if the s/c is upgraded AND ecu as well.

True, I did actually know that but just forgot to say it

Thing is that buying an aftermarket ECU adds a fair amount to the cost of the mods, in my eyes its hard to justify the cost unless your going the full distance, like what Jade has done to his by turboing.

[EVLGTZ]

I dunno eh,

reckon that a larger s/c with aftermarket ecu would be pretty darn impressive.

Plenty of cheap ecu options around nowadays.

[IH8TEC]

anyone know how much boost they could push, like maxish on sc12 is 14-15psi, what would the sc14 do?

[Disco]

anyone know how much boost they could push, like maxish on sc12 is 14-15psi, what would the sc14 do?

read this page

http://www.alsc.aus.as/messages/3/2333.html?1025255407

[aesc]

I agree, an SC14 with aftermarket ecu would be impressive. How cheap is cheap for an aftermarket ecu then?

I read somewhere that a sc14 with 175mm pulley will boost 17-18psi but fuel pump and injectors max out around 17psi so the fuel system would need upgrading

[Bazda]

yea 175 will prob make 18psi, sc14's efficiency will kinda run out but they still provide good power and they wont melt if u got a front mount, built much stronger than a sc12.
fuel pump and extra injector will solve fuel problems.

[FLAWLES]

Bazz is helping Fred upgrade the s/c to sc14 on his one at the mo. Although I think hes running afm verison 4agze so he prob wont need to aftermarket ecu to resolve these timing issues. Might be an idea to talk to one of them. Larger s/c is a very cool idea and different from all those jumping on the 4agte bandwagon. Should produce some good results.

dam i was going to say that


but yea theres that option and then theres a thing called a vortex that is $$$$$$$ show us the money if u are going to slap one of those on u might is well go turbo

but talk to bazda

[Bazda]

everyone just sell your map sensor and replace the loom with a afm one

[gdsup]

well now my car is almost running i shall endeavour to dyno in this progression sc12-10psi on standard pulley, sc12-14psi, sc14 with larger pulley (i.e 14psi on sc12 pulley) all on standard ae92 MAP ecu, with the aim of 150 rwkw @ tourque performance on standard head/block/ecu, then prob change to megasquirt ecu, should be interesting to see how it goes...

[Disco]

well now my car is almost running i shall endeavour to dyno in this progression sc12-10psi on standard pulley, sc12-14psi, sc14 with larger pulley (i.e 14psi on sc12 pulley) all on standard ae92 MAP ecu, with the aim of 150 rwkw @ tourque performance on standard head/block/ecu, then prob change to megasquirt ecu, should be interesting to see how it goes...

Good stuff man - would be real keen to see the results.

[qik20v]

what is involved in changing from a Ae101 map sensored engine/ecu/loom to make it AFM?

can you just swap the ecu's and get a new loom and AFM?

[aesc]

Hey Disco what type of aftermarket top mount has this Trueno got? Its not an ARC on is it?? If so, he doesnt wanna swap it for a VR4 cooler does he??