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R31Nismoid

Rb30 Hybrid Upgrade, All Dyno Results

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On 29/03/2016 at 9:12 PM, XKLABA said:

Lets try this again :(

Rebuilt with 0.5mm bigger Wiseco pistons

New UE 260 x 10.8mm cams

OS88 with alloy shaft

Sold dyno wheels so was dynoed on 275-35-19s instead of 255-40-18s so revs are lower then indicated

Also Scott changed from Dyno Dynamics to Mainline which apparently reads lower :/

post-36620-0-97290200-1459246356_thumb.jpeg

Changed coils to Audi R8 NGKs

dailed cams back to 0 deg IN and 0 or 2 deg EX to try stop lifting head knowing we where going for 30psi

Tested rear turbo feed and got more the 10psi vacuum (test gauge only goes to 10psi) @19psi boost, should be good gains left there 

still on 275/35/19s 

engine bay

 

IMG_3363.JPG

IMG_3130.JPG

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On 25/11/2017 at 12:38 PM, XKLABA said:

Tested rear turbo feed and got more the 10psi vacuum (test gauge only goes to 10psi) @19psi boost, should be good gains left there 

 

Solid power and delivery for low mount twins near 500kw!

Just for clarification, when you say "tested rear turbo feed and >10psi vacuum" - can you explain what you meant there?   I've been REALLY keen to know about if or how much vacuum a high-pressed low mount twin setup is drawing at the intake as I have long suspect that the piping will force a restriction as required airspeed goes up and it will initially push the pressure ratio up quite high, meaning a lot of setups will go off the comp map before they necessarily actually reach their flow potential at atmospheric vs inlet manifold pressure... so choke earlier than they would.  This would confirm that theory like a mofo.

The next thing however, if that is what is happening - when you say 10+psi "vacuum", you mean atmospheric pressure (~14.7psi) - 10psi, or ~4psi absolute pressure?   That is F-ALL.   Like crazy low.   The area of the map your compressor would be working in would be similar to if you were running near 90psi with no "vacuum" at the inlet :O

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This result was more what I was hoping for . Had posted it on another thread but this is the update.

I have continually lost a little from the top end but still more than needed on the street, so The End, again :) 

To finish it off I added

ATS Tripple carbon clutch, the Coppermix Twin had to go, it was a great clutch.

Emtron KV8 ECU

EFR8374   1.05

Koolig Crank Trigger

5a2d0664de25b_E85lastScott.thumb.jpg.48474c7de20d9af95762285541bdb304.jpg

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RB 25/30

CP 8.5:1 pistons

MRP rods, arp2000 bolts

ARP main studs

Oil pump drive adapter

RB25DET oil pump

Lightly ported r33 s2 head

Tomei 256x 8.5 poncams

Genuine greddy intake manifold

6x2200 injectors with flex fuel sensor

VH45 throttle body

150mm intercooler

Sinco twin scroll to manifold

66mm precision waste gate

Borg Warner s300sx 83/75 twin scroll .91 housing

4inch exhaust from turbo to back

Vipec i88 ECU with lithium choon

On a rough time with vct on the entire run made 378rwkws on hub dyno

 

 

 

video my mate made.

 

Still more boost and ethanol to come. Just chasing an oil pressure issue.

20180303_164605.jpg

Edited by Looney_Head
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RB25 head, fixed cams Tighe grind 805C 8.9mm lift, 265 degree. Hydraulic lash adjust.

8.4:1 static CR. Freddy intake manifold, VH45 TB. 

6 boost exhaust manifold, 50mm Pro Gate. 3.5 inch exhaust from turbo back. 2 inch plumb back off gate.

Precision 6266CEA, single scroll 0.84 T3 flange.

Fuel - petrol.

Boost - 24psi consistent from 4200-720020180424_234850.thumb.jpg.81b3028be78b5fb623541d7af29ab32b.jpg

Issues - experienced timing scatter due to OEM CAS.

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My latest output on my 26/30 rips built engine on e85 with oem r8 coils made an extra 64hp on less boost had a missfire first went 658 with 29 with a miss and then when we replaced plugs and gapped them @.5.5 and set boost @27 psi it went the same power didnt do another power run on 29 psi little scared with the stock rods haha although they pushing these stock rods well over 500kw in nz.20180817_203954.jpg

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My latest output on my 26/30 rips built engine on e85 with oem r8 coils made an extra 64hp on less boost had a missfire first went 658 with 29 with a miss and then when we replaced plugs and gapped them @.5.5 and set boost @27 psi it went the same power didnt do another power run on 29 psi little scared with the stock rods haha although they pushing these stock rods well over 500kw in nz.20180817_203954.thumb.jpg.32893ce1cd74399066b0597d13c16ee1.jpg
Better pic20180825_072034.jpg

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Always wondered why my CR was down to 8.1:1 after my stroker build.

Thinking of going to 9.5:1 and might clean the head up, maybe even a P&P .

Anyone have results for increasing the CR from factory , up to 9.5 , maybe back to back Dyno runs on the same Dyno ?

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10 minutes ago, Nismo 3.2ish said:

Always wondered why my CR was down to 8.1:1 after my stroker build.

Thinking of going to 9.5:1 and might clean the head up, maybe even a P&P .

Anyone have results for increasing the CR from factory , up to 9.5 , maybe back to back Dyno runs on the same Dyno ?

8.1... did you get some VL workshop to build the engine, either that or a seat painter that builds engines

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16 hours ago, acsplit said:

8.1... did you get some VL workshop to build the engine, either that or a seat painter that builds engines

Did a great job painting the motor :) 

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On 8/25/2018 at 7:25 AM, danny14 said:

Better pic20180825_072034.jpg

Did mick tune it still? your old run was on the dyno dynamics at Ovaboost wasnt it?

 

Edited by azzada1

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Did mick tune it still? your old run was on the dyno dynamics at Ovaboost wasnt it?
Yes mick tuned it

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Stock rb25 s0 head.

Stock unknown kilometer rb30e bottom end with acl bearings, nitto head drain, rb25 oil pump and 1.1mm oil restrictors. 

1.3mm metal head gasket

6boost t3 exhaust manifold

Turbosmart hypergate 45mm

Ebay inlet plenum

660cc seimens injectors 

Haltech plugin

Hypergear atr45ss .82

3inch exhaust 

$50 intercooler 

Had a boost creep issue due to the wastegate being to small so mid range is lacking alot.

374kw was best run for the day, left it at 370kw on 24psi on bp98. 

 

20180327_225537.jpg

20180507_211006.jpg

Edited by lexxi32
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Upgraded the main and head studs, switched from Splitfires to an R35 coil kit to solve the misfiring above 25psi, and added a few other things. Upped the boost to 29psi and made a few extra kilowatts and more torque.

Boost control and area under the curve is a work in progress, response was better before the upgrades so no doubt it can be improved upon again. Feels good on the street and makes peak boost in the 4+k RPM range. Screenshot_20190210-173517_Gallery.thumb.jpeg.c956888a52901786600bd0804597bcee.jpeg20190210_151554.thumb.jpeg.c5f046ecff3a67df9cb089a423fd5aaa.jpeg

 

 

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Video of one of the dyno runs:

It made 525kW at 27-26psi. We then turned the boost up to 29psi and on the next run just as it passed through 545kW the compressor outlet pipe clamp let go at about the 6000+rpm mark. Probably would have gone close to 555ishrwkw on that run. We quickly replaced the busted clamp and fired off two more runs at 29psi, both in the 549.Xrwkw range. I still think my GTX3584RS 1.01 combo is capable of 560-570rwkw on this dyno, with boost set to about 32-33psi. But the fuel system is completely maxed out at well over 90% DC and I'm not willing to increase base pressure any higher than 56-57psi. Close enough to call it 550rwkw will do.     

I have a Racelogic Traction Control system installed in the car and on the drive home I quickly discovered the previous setting of 5% slip is not enough to prevent excessive wheel spin in 3rd gear as it ramps up to peak torque. Lowering it to 4% was a little better, but 3% might be required. 0% is the wet weather setting through to 25% is minimal TC input.          

 

 

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On ‎12‎/‎10‎/‎2017 at 8:37 PM, Nismo 3.2ish said:

This result was more what I was hoping for . Had posted it on another thread but this is the update.

I have continually lost a little from the top end but still more than needed on the street, so The End, again :) 

To finish it off I added

ATS Tripple carbon clutch, the Coppermix Twin had to go, it was a great clutch.

Emtron KV8 ECU

EFR8374   1.05

Koolig Crank Trigger

5a2d0664de25b_E85lastScott.thumb.jpg.48474c7de20d9af95762285541bdb304.jpg

That thing is the ultimate street set-up with a heap of low and mid range torque, even way down at a mere 2,500rpm. It actually looks a little similar to my previous set-up (old spec's in signature and green curves on attached dyno sheet) although nowhere near the amount of low down torque on tap from your beast!  I guess that's to be expected with a 3.2L and ultra responsive EFR8374 vs. 3.0L and no frills HTA GT3586R.         

IMG_8573.JPG

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Yeah Matt , end of the day it's what you want from your car. It's all fun but an expensive exercise 😬

Here is the latest Dyno , bit hard to compare because you need same scaling setup on the printout to compare BUT it drives better.

As you can see it is hitting 24 psi and dropped off a little mid range but will be tuned again after some Klms have been clocked and a bit more boost added

Having trouble downloading Dyno ?

 

Edited by Nismo 3.2ish
trouble downloading dyno graph
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