TD05 18G v TD05 20G
Originally Posted by stluciascooby
I ended up with a 20g and built internals on an sti v3 running 1.75 bar and its fantastic. but you get used to the power and now am looking to go bigger after 4 months.
Jon
Jon
Wheres the best place to buy a TD05-18g from, Iwas hoping to get one overseas and save a bit but they dont seem a common as the vf34
Also Can the turbo be installed with standard ECU and upgraded at a later date?
thanks
Jon: How on earth did you get 1.75 bar!
Most we could map-in was 1.5/1.6.
I want to find the best place for a roller bearing 18g. I do not think AndyF does a roller version(?)
Please post if you find a good place.
Graham
Most we could map-in was 1.5/1.6.
I want to find the best place for a roller bearing 18g. I do not think AndyF does a roller version(?)
Please post if you find a good place.
Graham
To be honest I dont know I have sent andy an email asking him to comment.
I am running some logs tommorow with the datalogit to see what is going on.
After he mapped I pulled the heads and replaced the gaskets as the heads had "creaked" under nitrous. It turns out the head gaskets had been put on with silicone a big NO NO.
Once the car was put back together last week we took it out and got these results, we made a few other changes to the inake and catch can setup but nothing major.
I must say the car feels much faster than before the gasket change.
I will let you know the log results when I get them I dont know if running 103 octane gas in the car makes a difference?
Jon
I am running some logs tommorow with the datalogit to see what is going on.
After he mapped I pulled the heads and replaced the gaskets as the heads had "creaked" under nitrous. It turns out the head gaskets had been put on with silicone a big NO NO.
Once the car was put back together last week we took it out and got these results, we made a few other changes to the inake and catch can setup but nothing major.
I must say the car feels much faster than before the gasket change.
I will let you know the log results when I get them I dont know if running 103 octane gas in the car makes a difference?
Jon
Last edited by stluciascooby; Aug 3, 2006 at 02:10 PM.
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Graham
I'm not convinced there is much difference between the sleeve and roller bearing turbos. With respect to the IHI range, the only real way to telll if you have a roller bearing version is by the sound on rundown. Its not like the roller versions are really quick spooling in comparison.
Jon - thats the boost i would have expected to get with the wastegate duty we were running on the day, I mentioned at the time that I thought something was holding it back a bit, hence all the exhaust/induction experiments. It would be good if you could send me a datalog.
Andy
I'm not convinced there is much difference between the sleeve and roller bearing turbos. With respect to the IHI range, the only real way to telll if you have a roller bearing version is by the sound on rundown. Its not like the roller versions are really quick spooling in comparison.
Jon - thats the boost i would have expected to get with the wastegate duty we were running on the day, I mentioned at the time that I thought something was holding it back a bit, hence all the exhaust/induction experiments. It would be good if you could send me a datalog.
Andy
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Thread revival 
Well mate I plummed for the 20G then changed to the 18G for one reason and another. Last delta dash showed power was 392/350. Not too sure how accurate but certainly quick.

Well mate I plummed for the 20G then changed to the 18G for one reason and another. Last delta dash showed power was 392/350. Not too sure how accurate but certainly quick.
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Im soon to get the 18G on mine. Are you saying you have just the mods as stated in your 'my scooby' section?
reano i went the 20g route you can see results and spec in my scooby part. but to be honnest if i was doing it again i'd have gone md321h more money for turbo and injectors etc but your looking at 400bhp and 380lbft
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Yes reano (mods as listed) as recommended at the time by Bob Rawle/ Andy F.
I'm with Swifty though. If I was going down this route today I'd me going with the MD321
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