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Initial results / tune - HKS 3040


B-Man
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This was after a rough tune - Ben is going to try and flatten our the bump when the VVT comes in - also there another 1300 RPM or so at the top end that need looking at. Like I said, initial tune - Should have another graph next week.

This was at 21 PSI - We should be able to extract another couple of PSI out of her next week too ! :P

dyno1.jpg

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Guest RedLineGTR

great results...just a question would there be any benifit removing the VVT control (in this situtation) to see the results??? Cheers Rob

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would i be right in saying that it looks like the boost hits around 3000rpm to 3500rmp then full boost by 4000rpm were kw's, N get vertical, looks like it would pull real hard at low revs which is great concidering the size of 3040's. whats your comp ratio?

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Redline - Yeah we are going to muck around with the ECU to try and tune that dip out. Apparently the ECU can do something with the VVT to make it better (that's B-Man technical speak there)

Roy - you know ;)

Steve - yep she hits hard. It's interesting actually - 0-3500 = drving around normally. > 3500 is where it all starts to happen

RBVS - You got it mate - in a nutshell ! 8.5 or 8.6 to 1 - (HKS 1.6 mm head gasket)

Cameron - I took it down the quater last saturday and got two 15 sec runs and fu(ked clutch. :( ha ha New clutch going in now so I might be able to do better than that :D

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Just looking at the dyno graph with boost plotted against revs and power:

Boost starts at 3000

3500 = 5 PSI and 80 rwkw

4000 = 8 PSI and 112 rwkw

4500 = 20 PSI and 200rwkw

5000 = 23 PSI and 260 rwkw

5500 = 22.5 PSI and 270 rwkw

6000 = 22 PSI and 310 rwkw

6500 = 21 PSI and 323 rwkw

Thinking about it and comparing against the old Turbo which made 200 rwkw at 9 PSI and 255 rwkw at 15 PSI ( from memory) this one is a laggy hoe. (of course this was a completely different RPM)

It prolly has everything to do with the 1.12 AR exhaust housing ...

However - if we can tune it a bit more and maintain the 300 odd rwkw between 5500 and 8000 rpm - the top end will be the place to drive it.

Means I get the best of both worlds. The quiet NA car between 0-3500 for puttering around town - And the weapon 3500-8000 RPM for the track, drags, off street stuff.

I might look into dropping down an AR or two for a bit of a play as Everything else is the same - just the turbo swap . So I know the zorst, cat, etc is good for better response.

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1.12 exhaust housing!!! No wonder it's so laggy!

I was using a 0.87 exhaust housing, and there's also a 1.01 housing, so you're two sizes up from what I was using! :)

3500 = 5 PSI and 80 rwkw

4000 = 8 PSI and 112 rwkw

4500 = 20 PSI and 200rwkw

You have a 90rwkw increase in 500rpm between 3500 and 4000rpm!!! That's gotta make for some traction issues!!!! eek3.gif

I'd love to see what she'll make with more boost (1.6bar isn't enough with that monster exhaust housing) and a proper tune... You're not even revving the thing out yet!!!! Sounds like you have a monster on your hands Brendan! I told you HKS turbos are the goods :)

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Are you using the e-boost, B-Man? I thought they were supposed to be the most, 'un-spiking-est' of ebc's? (A-Man technical speak there :))

Peaks to 23psi then trails to 21psi 1500rpm later? Weren't Turbosmart claiming almost 0 spiking with this device @ SEMA?

If you're not using the e-boost then i am way off... but i thought you were...

Adrian

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Yes, using e-boost, and yes I don't understand the boost drop off either...... Maybe more wastegate related ?? Dunno...... That's something I will be looking in to ! Also prolly cause it comes on so damn hard - There may be a way with the e-boost to slow down the wastegate hence stabablize the boost.

Cheers,

Merli - What are they efficient to ??? 1.8 bar ???

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1.8-1.9 bar I would imagine... Keep turning up the boost until you don't make anymore power with more boost :) You have the engine to support it, so don't be scared to wind it up! :)

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That power curve is insane :headspin:

UAS are gonna have to print out your 'final tune' with the printer set to 'portrait' just to fit your power curve on it.

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Hi Sydneykid - I was wondering that myself - as you can see by my biro markings on the graph - I wanna also know what happens between 6500 and 8000 RPM :)

I've asked them to run it further after final tune.

Knore - I wanted better than 250 rwkw - But I didn't want to stick a T88 on it. - So yeah - It's maybe a little overkill for the track and a bit underkill for drags - A happy medium -

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