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Those that saw my earlier post (Exhausts: noise ='s power) may remember my fuel pump/pressure and leaning out dramas from last weekends dyno session?

Well it turns out I had neither an 044 or 984 Bosch pump! It was the little baby of the Bosch range... the 910. It put up a good effort considering the demand that's been placed on it! I found the box that my pump "supposedly" came out of. It had 984 on it.

The 910 will go to a new home (Shaun's RX7 turbo circuit car - coming soon!) and I now have an 044. I watched it go in, so this time I'm 100% sure I have an 044 :)

After a bit of fuel pressure adjustment, some tuning to suit the new pump and f/pressure, and it was time to see what power it could muster? Shaun richened up the mixtures across the rev range (to keep it nice and safe). Peak torque A/FR is low/mid 11's and top end is 11.8.

Even with the richer mixtures we still made a number of high 290rwkw runs, with a best of 299.1rwkw (401rwhp) It made 298-299 back to back :) I was happy with that so we didn't bother with the magical 300. It was worth stopping short of 300 just to see many people are going to go, "ahhh c'mon just a bit more boost and you would've had it" :( LOL Shaun, Wayne, Craig (MAD DAT Motorsport) and myself crowded around the dyno screen and all went OHHHHH! when it flashed up 299.1. If it had've been 299.9 then I would've been pissed :)

Boost was at ~1.5bar (~22psi)

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Thanks Jay :)

Yeah we've been around a while us old timers :) Back in the days when a 200rwkw GTS25t was a big achievement! I won my first ever dyno comp at CAS (now CRD) with a 200+rwkw run. That was ~1999-2000 I think?

These days my power figure isn't much to brag about at all. Look at all these big power monsters on our forums! There's about 6-7 300+rwkw GTS25t at least. Then you've got Adrian (2rismo), Brett (Buster), Chris (Doughboy), GOTBOOST and more that are into the low 12's and 11's!

I'm hoping to run the car at AIR on Sunday (6th) With the Nittos, me getting my shit together, no breakages (PLEASE! - touch wood, metal, plastic and anything else I can get my hands on!!!) I'd love to see a very low 12, high 11 and 120+mph.

Congrats Matt! Look forward to watching ur beast down the track! Ill have my camera there, so put on a good show! ;)

Thanks Mark ;) I'll give it my best shot mate. As long as I drive it home in one piece I'll be happy.

Thanks all :)

Brendan, we thought about dropping the exhaust. I wanted to see how much difference it'd make? But we ran out of time.

Matty - 'Slammed Mobile Guard Rolling' Jeff Hughes 0401 400 005 He is only too happy to travel to wherever you want. As long as he has access to 240V ( to power his heat gun) you can get it done while you're at work. Just make sure your wheel nuts are tight when he's finished :) It shouldn't cost you more than $110 for the rear.

I'm keen to head out there at gates open time if you are Matt? 9am or 10am... it's all good to me.

Bl4ck32,

With your new combo you'll do more than just pass me! How long till we get to see the full power of your beast unleashed?

Thanks Mel :) You could always bring your Nan? I'll could give her a special 'birthday' ride in the car :D

Thats very nice to gain power aswell as richening up the mixtures for saftey! Did Shaun add any timing anywhere on the map?

I'm 99% sure no additional timing was added.

The peak power is mostly unchanged from the other day (~2rwkw). Cooler inlet temps may well have gained the extra rwkw. To be totally honest such a small amount is just as likely to come from tyre to roller diferences, or 0.5psi boost increase. It may have been 22.5 to 22.9psi whereas the other day is was 22.0psi? It all adds up.

The A/FR at peak power has not changed much at all (~0.2) It's peak torque and especially the top end A/FRs that are much safer (11.8 as opposed to 13.0!!!)

The real test will be on the drag strip.

Very nice. It's funny how long these things can take, but you've has a lot of ups and downs with your car for so long. With the same fundamental mechanical package it's gone from 180 to ~300. It's good to have that development and optimisation over time.

BTW....GO THE GARRETT/MICROTECH LEGENDS VS THE TWO LOCAL HKS/POWER FC SLY AND DIRTY ENEMY! The war continues :rofl:

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