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R34 GTR

593awhp/445awkw @ 24-25psi

RB26/30DETT

HKS GT-RSs, yes fancy -10s

250 x 9.15 poncams

ARC cooler

ID1300s

custom twin 3" into single 4" exhaust

Syvecs S8 ecu

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has done 623awhp/467awkw @ 28psi

data:image/gif;base64,R0lGODlhCAAKAIABAAAAAP///yH5BAEAAAEALAAAAAAIAAoAAAISTIBmoLy9XDqyxktfkuo05AQFADs= iphone 5 dyno update 032 (1280x960).jpg

Lets try this again :(

R34 GTR

593awhp/436awkw @ 24-25psi

RB26/30DETT

HKS GT-RSs, yes fancy -10s

250 x 9.15 poncams

ARC cooler

ID1300s

custom twin 3" into single 4" exhaust

Syvecs S8 ecu

has done 623awhp/458awkw @ 28psi

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

  • Like 3
  • 2 weeks later...

Had the car back on the dyno today.

R33 GTS25t

RB25/30DET

FP HTA GT3586R .85

256/264 x 8.8 / 9 HKS cams

Link G4+

3" exhaust

Twin Walbro 460lph E85 pumps, twin feed lines, twin entry rail, ID1000, 53psi base pressure

462.1kW at 25psi (see video)

780ish Nm

Dyno doesn't have rpm input (normally set to road speed) so scaled rpm as best as possible but think it's out by a couple-few hundred rpm making it look laggier than it is.

post-81-14604602520747_thumb.jpg

Dyno video: https://m.youtube.com/watch?v=_CeAbH97HLw

  • Like 1

How much boost?

Very similar build spec and result to acsplit above.
My goals are for a responsive track car I can daily on 98 - drive and fill up anywhere.
RB30 Bottom end w/ Ross Racing Pistons & Spool forged rods
Garrett 2860 -5 Twin Turbos
Tomei Expreme Dumps
Low comp 7.85:1 (to keep things safe on 98, YES I'm staying 98 for a while)
ARP M11 Head Studs
Nismo 0.9mm Metal Head Gasket
+1mm Supertech valves with Supertech springs & retainers
Tomei Pro Cams 260 10.25mm lift
ID 1000 injectors
Autronic SMC / 500R CDI (Super Old School!) firing through Splitfire coils
Adj cam gears
Nitto Oil Pump
Single 044 pump & 2L surge tank

12791116_1183587054999874_67586165268249

R34 GTR

593awhp/445awkw @ 24-25psi

RB26/30DETT

HKS GT-RSs, yes fancy -10s

250 x 9.15 poncams

ARC cooler

ID1300s

custom twin 3" into single 4" exhaust

Syvecs S8 ecu

img082.jpg

has done 623awhp/467awkw @ 28psi

iphone 5 dyno update 032 (1280x960).jpg

was this on 98 or e85?

well, finally got there.....

dirty 30

256deg 9.15mm lift cams

greddy intake

1000cc injectors

Haltech platinum pro

1mm mls head gasket

spool rods/piston kit 9:1cr

spool awd adapter

6 boost mani

china gt42 bush bearing

4inch zorst5 inch metal cat

tomei intank pump98 octane from 7/11

444.8rwkw @19-20psi

1382768647916.jpg

Update:

After spinning bearings at my first track day, I required another rebuild.

I decided to go from a single, back to a more factory looking setup.

So, same setup, with trust 618zs turbos.

10cm housings.

Hpi dumps.

Twin 3" to 4" exhaust

Came to 380rwkw.(or awkw, not sure which).

5c30e8c06ef7b4fc9007aea81e7548ba.jpg

  • Like 3
  • 1 month later...

RB30/26

CP Pistons 9:5:1 comp

Spool I beam rods

ACL bearings

ARP main studs

N1 oil pump with spool billet gears

Davies Craig 115lph water pump

Cometic 1.3mm head gasket

Arp head studs

Tomei poncams type B

Bosch ev14 1500cc injectors

Topmound mildsteel manifold

Precision 6766BB V-band inlet housing A/R .82

4" downpipe

3.5" exhaust

Running on E85 and 2 bar of boost.

post-107965-14642019637704_thumb.jpg

RB30/26

CP Pistons 9:5:1 comp

Spool I beam rods

ACL bearings

ARP main studs

N1 oil pump with spool billet gears

Davies Craig 115lph water pump

Cometic 1.3mm head gasket

Arp head studs

Tomei poncams type B

Bosch ev14 1500cc injectors

Topmound mildsteel manifold

Precision 6766BB V-band inlet housing A/R .82

4" downpipe

3.5" exhaust

Running on E85 and 2 bar of boost.

post-107965-14642019637704_thumb.jpg

RB30/26

CP Pistons 9:5:1 comp

Spool I beam rods

ACL bearings

ARP main studs

N1 oil pump with spool billet gears

Davies Craig 115lph water pump

Cometic 1.3mm head gasket

Arp head studs

Tomei poncams type B

Bosch ev14 1500cc injectors

Topmound mildsteel manifold

Precision 6766BB V-band inlet housing A/R .82

4" downpipe

3.5" exhaust

Running on E85 and 2 bar of boost.

post-107965-14642019637704_thumb.jpg

RB30/26

CP Pistons 9:5:1 comp

Spool I beam rods

ACL bearings

ARP main studs

N1 oil pump with spool billet gears

Davies Craig 115lph water pump

Cometic 1.3mm head gasket

Arp head studs

Tomei poncams type B

Bosch ev14 1500cc injectors

Topmound mildsteel manifold

Precision 6766BB V-band inlet housing A/R .82

4" downpipe

3.5" exhaust

Running on E85 and 2 bar of boost.

Looks like fun, even after the 3rd time reading it, lol

  • Like 1
  • 1 month later...

Finally fitted the new 3.5" dump and front pipe combo' after getting it back from ceramic coating.

Almost no change in top end and peak power (462 vs. 463.7kW @ 25psi on E85) but solid gains in both response and peak torque.

Apologies for the out of focus and cropped dyno sheet image - will upload a proper one after I pick it up tomorrow. The improvement in area under the curve is pretty obvious.

577cc8531a045_ImageUploadedBySAUCommunit

  • Like 2

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