Piglet's Rebuild Of His Busted Tomei 2.8

[NISR32.5]

Stroker, vcam, efr, os box [emoji389][emoji385][emoji384][emoji387][emoji386][emoji383][emoji388]

You only live once, I say spend it all now while you can enjoy it

[Piggaz]

Stroker, vcam, efr, os box [emoji389][emoji385][emoji384][emoji387][emoji386][emoji383][emoji388]

You only live once, I say spend it all now while you can enjoy it

Lol. Hasn't all happened in a week though. Owned the car 9 years this year. Better be worth it!!!

[XKLABA]

Just wait till you pull gears in anger, it will be all worth it lol

[Piggaz]

Where's my email .

[Count Grantleyish]

9 years? Yikes.

[Gts-t]

Awesome build, always love seeing the updates. Heres a pic inside my hks type r cooler just for comparison to the others for those interested.

[fatz]

Lol.

It ain't getting done yet. Want a back to back between "GT series and single"... For science. Lol

Excellent

Then do some track work ( 1/4 mile and laps times please)

Then do it again with the v cam ( I think drag times would show f all difference I am mainly interested in the lap time difference )

Proper back to back would be excellent

[Piggaz]

I agree. V cam on the strip would make no difference whatsoever.

Just want it driving again. ARGH!

By all means Pete, once it's done, take it for a lap and see what you think. Be good to have some feedback too!

[tangomatt]

Hey Paul

I am so tempted to get V can myself. But can you explain a few things for me:

1, What influences your choice of HKS step 1,2 and Pro kit?

2, how do you check valve clearance for VCam to operate? Do you have to machine the Piston recess to get valve clearance?

If I am running 272 Step 2 HKS intake cams already, does that mean piston recess would have been machined in already?

Sorry about these stupid questions as I am still learning.

Thanks

Matt

[XKLABA]

Awesome build, always love seeing the updates. Heres a pic inside my hks type r cooler just for comparison to the others for those interested.

data:image/gif;base64,R0lGODlhCAAKAIABAAAAAP///yH5BAEAAAEALAAAAAAIAAoAAAISTIBmoLy9XDqyxktfkuo05AQFADs= image.jpg

Ok so I will put up my ARC core for comparison as well

Just for Paulie ?

[HarrisRacing]

Ok so I will put up my ARC core for comparison as well

Just for Paulie

Thank you all for the pics of the insides. I REALLY like that Hypertune and the ARC after seeing them. ARC will be what I order next.

Thanks.

[Piggaz]

Hey Paul

I am so tempted to get V can myself. But can you explain a few things for me:

1, What influences your choice of HKS step 1,2 and Pro kit?

2, how do you check valve clearance for VCam to operate? Do you have to machine the Piston recess to get valve clearance?

If I am running 272 Step 2 HKS intake cams already, does that mean piston recess would have been machined in already?

Sorry about these stupid questions as I am still learning.

Thanks

Matt

Matty,

Your 272's would be 10.2 mm of lift so they would of had to relieve the head for the lobe to spin. As for the piston, im not 100% sure when that needs to be done. My last engne was running Tomei 270 @ 10.25 mm cams and the pistons were not relieved. Ask Chris (if he is doing the work) to pop a plug out and have a look.

Step 1,2 and Pro.

Step 1 moves 30 degrees and uses a 248 @ 8.6 mm cam. You can run that with stock pistons. Dan (Silver Nur) ran this kit on his engine.

Step 2 moves 50 degrees and uses a 264 @ 8.7 mm cam. You need to have pistons relieved for this kit. Step 1 and 2 are the same price.

Pro moves 50 degrees also and uses a 264 @ 10.0 mm cam. Like step 2 you need valve relieved pistons. This kit is expensive because it comes with an ECU which you pretty much chuck in the bin (You wouldnt use it). Unfortunately you can't buy the Pro kit without the ECU.

Here is Dan's result using the Baby step one on his 2.6/2530 setup.

Extra 50% torque (300 nm vs 450 nm) at 4000 RPM.

What setup did you use on your Nur? I can't remember now.

I chose step 2 because it was no more expensive than the step one but i'm going to try and use my current intake cam I have in the car at the moment. It cant be too hard, its just a bit of machining.

[HarrisRacing]

Matty,

Your 272's would be 10.2 mm of lift so they would of had to relieve the head for the lobe to spin. As for the piston, im not 100% sure when that needs to be done. My last engne was running Tomei 270 @ 10.25 mm cams and the pistons were not relieved. Ask Chris (if he is doing the work) to pop a plug out and have a look.

Step 1,2 and Pro.

Step 1 moves 30 degrees and uses a 248 @ 8.6 mm cam. You can run that with stock pistons. Dan (Silver Nur) ran this kit on his engine.

Step 2 moves 50 degrees and uses a 264 @ 8.7 mm cam. You need to have pistons relieved for this kit. Step 1 and 2 are the same price.

Pro moves 50 degrees also and uses a 264 @ 10.0 mm cam. Like step 2 you need valve relieved pistons. This kit is expensive because it comes with an ECU which you pretty much chuck in the bin (You wouldnt use it). Unfortunately you can't buy the Pro kit without the ECU.

Here is Dan's result using the Baby step one on his 2.6/2530 setup.

Extra 50% torque (300 nm vs 450 nm) at 4000 RPM.

What setup did you use on your Nur? I can't remember now.

I chose step 2 because it was no more expensive than the step one but i'm going to try and use my current intake cam I have in the car at the moment. It cant be too hard, its just a bit of machining.

Great results! I wonder what the increase in fuel mileage is on these setups?

Also step 2 is on sale on rhdjapan.com looks like substantial savings over the others. I did have my head machined and have valve-relieved pistons. Damnit you make me spend money!! Anyone want some brand new poncam A's?!

[Piggaz]

You just missed out on the free exhaust cam they threw in when you buy any v cam kit. Makes it even cheaper .

Fuel economy? Pfft. Who cares lol.

[s2d4]

You just missed out on the free exhaust cam they threw in when you buy any v cam kit. Makes it even cheaper .

Fuel economy? Pfft. Who cares lol.

It's an American thing, some of them won't run e85 because of "bad mileage".

When are you hoping to pick your car up and do a tune?

[Piggaz]

Car is in a mates garage ATM. This weekend with any luck I'll take it out to where the exhaust is getting done and continue that. Put the front bar back on and start doing all the braided lines and fittings. Not looking forward to buying that stuff. Hate that shop!!!!

Tune? When ever it's done I suppose. Who knows when that will be.

[GTRsean]

Vcam setups work best on the street, make the engine feel bigger due to more low/midrange torque (cylinder pressure).

My 2.8 now has VCT setup (otomoto kit) and it's great, makes -5's feel like -9's, but you keep the -5's top end

If anyone cares: Intake 260deg 9.15mm lift, 0-20 deg sweep (NEO cam actuator), exhaust 252deg 9.7mm lift.

Piggaz' setup will be epic for a 'street car' heheh.

[tangomatt]

Thanks Paul for explanation

How does the Otomoto kit compares to the HKS VCam?

I prefer stock look of Otomoto kit.

Any opinions?

[HarrisRacing]

It's an American thing, some of them won't run e85 because of "bad mileage".

When are you hoping to pick your car up and do a tune?

I won't run E85 because I work in the OIL FIELD not the CORN FIELDS.

But honestly the only E85 station is an hour away one way. I'd have to fill drums up and truck it here to store...which I'm not 100% sure is legal without certain permits.

Dang missed the free exhaust cam

Oh well next time I guess. I have bigger issues worried about my stock transmission living through the current Torque and HP expectations so I should probably invest in beefing up the trans before adding more torque!

At this point, I just want to hear my car run!

[Piggaz]

Thanks Paul for explanation

How does the Otomoto kit compares to the HKS VCam?

I prefer stock look of Otomoto kit.

Any opinions?

I suppose in theory the Vcam would be the superior product as it is variable (not on and off like the Nissan VCT) and swings further. I don't know if anyone has done a back to back between both systems.