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Clint,

When I dropped in the other day Martin mentioned 216rwkw with more to come once you get the injectors sorted. Very impressive so far mate!

John started up & moved the 33 drag beast into the workshop while I was there too. It sounded bloody awesome :uh-huh: Had a look @ his new Volk TE37's + Nitto's, damn they're sticky tyres!

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Ok after many problems we are tuned and running sweet

At first with the 550cc injectors in there were majr prolems getting a good tune below 3500rpm, as there was a constant miss even after loots of tuning, it may have been possible to imporve this a bit but as this car is my daily driver i want something that runs basically perfectly and we didnt think this would happen with the big injectors.

So i went and got the stock ones cleaned and tested and refitted them and took it to get tuned today.

The Result, 235rwkw with stock injectors and no pressure regulator and a perfect tune all the way. So it is possible to get up to 245 with the stock injectors with a bit more fuel pressure but all along i was going to be happy with 230 so im happy now.

The turbo is still prettly laggy and basicaly useless below 4000rpm but that just means you have to rev it to 8k.

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Joel pm me email address and i will try and scan printout when i get home.

The turbo has a 0.6 A/R comp housing with a 54mm comp wheel from memory, this was new. The exhaust housing is 0.6a/r with a 58mm wheel, the big wheel is a problem i think. But you can not expect much else with a largish plain bearing turbo on a 2l motor, this is the price you pay for being for trying to do things cheaply and not buying a HKS or new garret turbo. But it does make the power and the lag dosent matter in a streight line and i will just have to use the handling to go fast through the twisties.

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On the way home i took more notice of the boost, it starts building from 3-3500 and is at full boost by about 4500 and thats when the fun starts. I need new tyres now.

We will see howstrong the RB20 engine and box is now, im not afraid to rev it to 8grand and shove it in the next gear, 3rd gear is already started crunching.

PS i looked at my last dyno run on the same dyno, with exhaust, front mount air filter, fuel pump and 1 bar i made 136 running really rich, i only made a 100rwkw imporvement.

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Awesome results mate! 235rwkw in a 32 is serious grunt :uh-huh: Martin comes up with the goods yet again :)

Most stock Japanese injectors can handle quite a bit of extra f/pressure, if/when it's needed. I've heard figures of 90+psi without a drama!

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Originally posted by Clint32

On the way home i took more notice of the boost, it starts building from 3-3500 and is at full boost by about 4500 and thats when the fun starts.

I need new tyres now.

I only made a 100rwkw imporvement.

Your turbo has ~800-1000rpm more lag than my combo. About what I'd expect given my extra 500cc & T3/T4.

For serious traction (hills/drags etc...) I'd go get those RE540S mate. For daily use the FM901's are the go.

100rwkw gain, ahhh you'd hardly notice that the road :burnout:

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Originally posted by -Joel-

Hey Matt, what limited you to only 13psi or is any more out of the effiency range of the turbo?

Well nothing really! 13-14psi it about as safe as I can get :) 16psi is the limit on my stock injectors @ the current f/pressure (hit "max duty" @ 16psi 7000+rpm).

I could go & up the f/pressure "again" & then wind the boost to 15-16+psi. I'd say my turbo is good for a genuine 450-500hp(fly) @ the absolute maximum. But to be totally honest I'd rather play it a tad safe & wait until I get bigger injectors.

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