hybrid turbos
Turbo Mini Forums

Who is running a hybrid turbo? whats been done to it and was it worth the money?

i have the turbo off at the moment so am thinking of having a hybrid unit built by owens, not sure if its worth the money

Think you'll find most people dont bother..

15/20psi isnt that bad for a t3, bear in mind they see 1.3 bar as standard in a cossie (19psi).

Edited by iain on 18th Nov, 2004.

I think minimark does...

What boost do you want to run?

alex

AlexF

did.....

true...

AlexF

will be again !! ( one day )

Everyone knows that instructions only have to be read if the thing doesn't work....

It will live again

i am, yet still waiting to use it properly, mine came from mirage motorsport

ive seen the 2 stage one by avonbar

I think it would be cheaper to just buy an electronic boost controller and buy a hybrid from owens as avonbar want ?699 + dreaded for there two stage hybrid

Iain - What cosworth uses that boost as standard???

I don't think you'll find a Garrett T3 in a stock instalation that runs more than 15psi...

Edited by turbodave16v on 22nd Nov, 2004.

Dave you might be right or you might not be! cos the last advice you gave me on how to wire it without the ecu didn't work i've got power to the dizzy and the coil but no spark what ever that was that you told me didn't work. Thought it seemed to simple

http://www.Zeemax.com

well it is simple... Usually! LOL!

The module is connected across the dizzy. +12v is supplied to the + side of the coil. This is where the module gets its live feed from. The module picks it's earth up through the dizzy body, and when the dizzy shaft spins sufficiently quick, the module switches the - wire (all white i recall) to the coil on and off.
Hence, if you have +12v at the coil, and your module is connected up the right way (the white wire should be on the negative, white/black to positive, then it'll work. If it doesn't, your coil or module is dead.

i'll have another look ,but i can see me getting someone to wire it its so annoying you can hear the starter motor but thats it

http://www.Zeemax.com

The term hybrib seems to be used to describe anything thats not standard ! The mods that can go into them vary quite a bit.

Simple mods included better bearings that allow the turbo to run higher boost pressures with out premature wear. Playing around with compressors / turbines and housings to map units to your required output. This can mean using new purpose made housings, which are obviously going to be more expensive then a recon. It can also involve quite a lot of machining work to the housing and paying a guy to make low volume stuff like that isn't cheap.

I've been advised by my turbo builder that 12lbs would be max recommended for 270 degree thrust bearing common in standard spec units. Will be happy to run more boost but will wear out much quicker.

i'm looking into the garrett GT units, probably not the BB variants mind as they don't seem to be available until you get to the GT25 which seems a bit too big for the job, but from what i've read the GT series can handle loads more boost compared to the old T series due to the improved design

I've ported the outlet of the compressor housing, and the elbow on the exhaust side. This should make less pressure drop, and also improve performance. Cheap effective mods...

I've seen rs turbos running 18-19 psi on a std turbo for thousands of miles... and they are almost the same t3 as ours :)

Alex

AlexF

i agree Alex after speaking to owens they said that 1bar (14.4 ish psi?) and a t3 will run all day and you dont really need to mod it even upto 16 odd psi BUT the more psi you run the more unreliable it will become without mods

How many miles do you do in a turbo mini... most do very few (specially Jimster's )

All upping the boost does is shorten the life of the turbo. As they arn't that expensive to recon / buy a 2nd hand one... why worry!

alex

AlexF

hey, this might be a stupid question but every one is talking about 16-17psi......who could run that in a mini engine, im only running 6, at the most 8psi and i got told this was risky! What else could i do to the engine to withstand higher boost?

998 turbo

i think Jon runs 20+ Matt as well ??

I ran 17psi this year, I plan to run more next year

Team Racing

Clubby, The main thing you need to do to run high boost is lower the CR.

I run 18psi no problem with a CR of 7.3:1. I've run 20 with no pinking too.

wil

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

I've been limited to 16psi peak this year - don't know why though; suspect turbocharger problem!

I've seen 40psi .....

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