Robo's

13.6 is ok You should try Calder, i find it a little bit quicker than Heathcote

i would go but not keen on going during the day, would be quite busy

Youll need new water and oil lines as the stockies dont fit.

Well my tune is pretty much on edge. With normal optimax on hi-boost (20psi) i can see knock of 90's. With this new extreme optiumax, knock only goes to 60 on hi-boost. Do i like it? YES

Dave Should be able to hold alot more boost top end. With my 2535, im getting 20psi in the middle and it holds 18psi up top, so doesn't fall off too much.

At cruise, it isnt on boost at all, i think he is meaning accelerating to 100 but then again i can accelerate there with no boost.

Light load aim around 14.7. Zero Boost aim around 13.0, Full Boost high 11's of flat 12's

Anywhere between $1000-$1500 for a 2530 turbo Comes in nice an early. The turbo is virtually the same size as the stocky except for roller bearings. 12.5 is good for a street car, you wont loose too many races.

Sold the 2530 and bought a 2535. Yes it boosted up nice and early, i think i had over 15psi at 3000rpm, i have a dyno boost chart around somewhere. Not a bad little turbo for some super strong midrange. Ran 12.5 in it.

Just completed a full tank using Boost 98 including a run upto Bendigo and back. Didn't really give it a hard time. 454k's for 54 L or 11.9L/100 or 23.7mpg in the old book. Not bad considering i run a HKS 2535 turbo with over 240rwkw at the wheels on 20psi. I still reckon i can get more out of it with a bit more fine tuning.

How do we see your file?

Im not really worried about fuel economy at all, but my old 5.0 injected used to get 10.5/100 and im sure with the technology of the RB25 it should eat that. I might throw it on the dyno and check my A/R's at light throttle and be done with it. I can remember when it was standard i saw 500k's to a tank.

Still i cant see any reason why these cars cant get 9L/100k on a trip

I totally agree, even the most accurate figures are over a few tank fulls as by tank to tank you can fill up differently

I doubt whether you will ever fill up with 65L

Is it tuned?

Im running Toyo Proxies RA1's 255/40/17 Dry weather grip is 10/10, they are awesome

Im running iridium BKR7EIX gapped at 0.8mm

Paul Check you 3200rpm light throttle, looks wrong to me. Your dumping in more fuel there than anywhere else.

Thats exactly what i have noticed, my knock levels have reduced significantly

Is the turbo reached its maximum point?

I just came back from Bendigo taking it easy and i got 390ks before the light comes on. I generally can push this out to 450 before i fill up (love running it on empty) Last tank 434ks. I was quite dissapointed with the open road cruising as i took it easy and was only gettting 100ks every quarter of a tank. When we tuned it we concentrated alot on fulll throttle but didnt do much on light throttle since upping the fuel pressure so i guess its guzzling on light throttle. Im smoothing out the part throttles Inj cycle to try and bring a little more effeciency into it. Even with the bigger turbo i think i could still get 500ks on a trip but might need a dyno to see my AFR's at light throttle. Im experimenting at leaning it out a little on light throttle but its all guess work until i get a monitor. Remember i could only be adjusting it 1% here and there so its really not going to make much. I hope i dont lean it out too far.

Generally you need 14.7-1 for light cruising, around 13-1 for zero boost and around 12-1 for full throttle. So you need to progressively increase fuel as load increases.

Paul Where did you get your Wideband sensor kit?

Your Barometric Pressure is reading wrong giving you higher numbers