The Sr20/Sr22vet thread

[brndck]

/\/\/\ ah gotcha. the one on the underside of the head, we tapped and inserted an allen head plug in that one too. You're right though, a good head gasket should have the same effect as plugging it.

[japslapsilvia]

Originally Posted by jr_ss

I think he's referring to the oil feed port in the block further forward on the head/deck. You do not need to block the port on the underside of the head. I didn't plug my VTC port on my S14 bottomend either. A good head gasket and studs will work just fine. If you're absolutely worried about it, then yes, plug it for piece of mind.

Originally Posted by brndck

/\/\/\ ah gotcha. the one on the underside of the head, we tapped and inserted an allen head plug in that one too. You're right though, a good head gasket should have the same effect as plugging it.

Yes the one on the underside of the head. I will just go ahead and plug it for piece of mind


Thanks fellas!!!

[LuckyX2]

FINALLY got my head back from the valve job after two months at the machine shop...

Gonna put the springs in this weekend hopefully so I can say soon for sure if DET springs work with P12 retainers.

Also, can someone remind me which direction I have to shift my DET exhaust manifold? It's 3mm, right? But do I have to shift it 3mm up or 3mm down?

[brndck]

/\/\/\ I believe you move the manifold 3mm up, but you can overlay the ex. mani. gasket and thatll tell you which way.

[jr_ss]

It is in the vertical direction. I moved mine .125". I'd overlay the gasket so you can see it visually.

[LuckyX2]

Oh right, I can just use the gasket to see, duh.

And if I use the DET pulley I don't need to get a timing re-locator, right?

DE crank/block, VE pump/cover, DE collar, Mazworx spacer, Mazworx oil pickup. That's the correct combination for the oiling/pulley?

[brndck]

Originally Posted by LuckyX2

Oh right, I can just use the gasket to see, duh.

And if I use the DET pulley I don't need to get a timing re-locator, right?

DE crank/block, VE pump/cover, DE collar, Mazworx spacer, Mazworx oil pickup. That's the correct combination for the oiling/pulley?

det pulley should still need the relocator. VE oil pump has the pin in a different location compared to DET.

Than combo sounds right, but you may still need to shave a few mm off the back of the crank pulley for it to line up with the belts properly. I dunno why people don't just order the ve spacer. Its cheap.

[LuckyX2]

I actually have the VE collar/spacer too, I bought a whole P12 VE and tore it down.

So what's the best combo knowing I have the VE collar/spacer?
DE block/crank with the VE pulley, collar/spacer and pump/cover?

If I use the VE pulley, the stock timing pin will be in the right place? I misspoke earlier when I said DET pulley, clearly that one would need the relocation.
Sorry for all the questions. I had all this stuff figured out and then didn't look at it for two months and forgot. Thought I had read of a setup that didn't need to relocate the timing pin though.

[LuckyX2]

Anyone have any info on P12 valve seals? Seems to me that the NSX has the same 5.5mm stems and I can use the Supertech seals for that.

Also still haven't found any info on if I still need to relocate the timing pin if I use a VE pulley.

[jr_ss]

Unsure of the stem seals as I'm rocking a P11.

Timing pin... Info at the bottom.

http://www.taarks.com/product_p/taark-timingrelo-ve.htm

EDIT- I just realized what exactly you're asking. If you use a VE pulley on a VE pump, the timing pin will be in the correct spot.

[LuckyX2]

Great, so I do not need to buy the timing relocation kit, as I had suspected.

And I already have a set of 5.5mm NSX/B Series valve seals so I'll be able to give an answer on that myself shortly.

[LuckyX2]

Well I wasn't able to actually install the springs because the NSX/B Series seals did not work as I expected but the retainer lines up just fine, so I'm gonna go ahead and say it works.
If anyone can find me P12 valve seals, that would be great. I found some but only on ebay.uk...
EDIT: Looks like Cometic 3175V-16 works as valve seals for the P12. 5.5mm stem, 9.5mm guide OD.
EDIT2: Got the Cometic 3175V-16s and they were ever so slightly too loose...

I've also attached a picture of my combustion chambers. I went ahead and ground down the weird bump that the P12s have by the spark plug. The DET and P11 do not have this and it seemed only to impede airflow from the valves and be a potential hot spot.

Also, what size oil line do you guys use for the VVL feed I have to tap into the head? 3 or 4AN? Just want to make sure I have enough oil flow, but will the 4AN be too large and cause a pressure drop?

[jr_ss]

A -3AN should suffice.

[jr_ss]

Originally Posted by Options13

Valve shim specs for the VVL are as follows; IN : 0.08
EX : 0.12

Copied from another thread for future reference.

[tb13]

I've been drooling over this thread for quite some time and I finally have the funds to start a VET build for my S13. I do have a few questions though.

Is anyone running an S14/S15 ECU with a VET motor and a P12 cas? TAARKS states "These can be setup in any ECU as a normal det CAS" so I would assume that means a S14/S15 ECU with Nistune would recognize the CAS no problem, right?

I do not want to go full standalone at the moment, so if I can get away with an S14/S15 ECU using VTC control and a single solenoid conversion to control VVL it would let me get the motor together much faster.

Really excited to start this build, I always hear how incredible these heads are can't wait to be running one.

[Yellow4g63]

Originally Posted by tb13

I've been drooling over this thread for quite some time and I finally have the funds to start a VET build for my S13. I do have a few questions though.

Is anyone running an S14/S15 ECU with a VET motor and a P12 cas? TAARKS states "These can be setup in any ECU as a normal det CAS" so I would assume that means a S14/S15 ECU with Nistune would recognize the CAS no problem, right?

I do not want to go full standalone at the moment, so if I can get away with an S14/S15 ECU using VTC control and a single solenoid conversion to control VVL it would let me get the motor together much faster.

Really excited to start this build, I always hear how incredible these heads are can't wait to be running one.

Why not a S13 ecu and run nismotroincs? Then you can convert to map at the same time and set your rev limiter anywhere you want too.

[tb13]

Originally Posted by Yellow4g63

Why not a S13 ecu and run nismotroincs? Then you can convert to map at the same time and set your rev limiter anywhere you want too.

Nismotronic is really cool, but since the S13 doesn't have VTC, there is no ECU output that can be used to control the VVL solenoid. Unless Nismotronic adds extra outputs, which I can't find any info about on their site.

[RalliartRsX]

Originally Posted by tb13

Nismotronic is really cool, but since the S13 doesn't have VTC, there is no ECU output that can be used to control the VVL solenoid. Unless Nismotronic adds extra outputs, which I can't find any info about on their site.

Straight from Nismotronics sites

NOTE: Minor rewiring will need to be done for the VVL solenoid control using the General Outputs in the NismoTronicSA software

In essence, nismotronic will support VVL with minor changes. Nismotronic can trigger external outputs.

[LuckyX2]

Originally Posted by tb13

Nismotronic is really cool, but since the S13 doesn't have VTC, there is no ECU output that can be used to control the VVL solenoid. Unless Nismotronic adds extra outputs, which I can't find any info about on their site.

You could use a separate RPM switch for that. http://www.jegs.com/i/JEGS+Performan...FVBZhgodTMUO6g

Also, I ran into another issue with the P12. The DET fuel rail doesn't line up like it does on a P11. Looks like I'm going to have to cut off the current tabs and weld on new ones. Injector spacing is the same, the mounting tabs just don't line up.

[tb13]

Originally Posted by RalliartRsX

Straight from Nismotronics sites



In essence, nismotronic will support VVL with minor changes. Nismotronic can trigger external outputs.

Well shit, I was looking on their product page and this isn't listed. Really appreciate the info.

Originally Posted by LuckyX2

You could use a separate RPM switch for that. http://www.jegs.com/i/JEGS+Performan...FVBZhgodTMUO6g

Also, I ran into another issue with the P12. The DET fuel rail doesn't line up like it does on a P11. Looks like I'm going to have to cut off the current tabs and weld on new ones. Injector spacing is the same, the mounting tabs just don't line up.

I'd really rather not run something external, which was why I asked about the S14/S15 ECU's. But since it does support extra outputs, it will work perfectly.

[jr_ss]

Originally Posted by LuckyX2

Also, I ran into another issue with the P12. The DET fuel rail doesn't line up like it does on a P11. Looks like I'm going to have to cut off the current tabs and weld on new ones. Injector spacing is the same, the mounting tabs just don't line up.

Just to be clear, the mounting tabs that secure the rail to the manifold do no line up? If so, that's minimal work.

[Yellow4g63]

I'm pretty sure u can hook it up to the break out board that it comes with to kick the vvl.

[LuckyX2]

Yep, the mounting tabs need to be cut off and either rewelded back on shifted around(looks like I'll need spacers for that) or I make some new brackets out of sheet aluminum.

Sure, it's only a trip to Lowes and a night's worth of work but it's another difference I found and I thought I'd mention it for the sake of having more P12 info for people.

[jr_ss]

Originally Posted by LuckyX2

Yep, the mounting tabs need to be cut off and either rewelded back on shifted around(looks like I'll need spacers for that) or I make some new brackets out of sheet aluminum.

Sure, it's only a trip to Lowes and a night's worth of work but it's another difference I found and I thought I'd mention it for the sake of having more P12 info for people.

I'm sorry, my post sounded dismissive, that wasn't my intention. I was just saying it's not a huge issue, but yes something that needs to be addressed. We all appreciate any feedback or information shared for the greater good?

[LuckyX2]

Originally Posted by jr_ss

I'm sorry, my post sounded dismissive, that wasn't my intention. I was just saying it's not a huge issue, but yes something that needs to be addressed. We all appreciate any feedback or information shared for the greater good?

It's all good

[candyred_240sx]

So my Kelford 292/303 cams were damaged (don't ask) and now new ones are on back order until November.

Just wondering if you guys have any suggestions on cams I should run in the mean time that won't leave me too disappointed compared to the Kelfords?

The setup is a stroker sr20 (87mm 8:5:1 pistons x 91mm stroker crank) with a fully Mazworx built P11 head (shimlesss) running a GTX3076 .78 twin scroll turbo, E85, high boost

[hanzbrady]

Originally Posted by candyred_240sx

So my Kelford 292/303 cams were damaged (don't ask) and now new ones are on back order until November.

Just wondering if you guys have any suggestions on cams I should run in the mean time that won't leave me too disappointed compared to the Kelfords?

The setup is a stroker sr20 (87mm 8:5:1 pistons x 91mm stroker crank) with a fully Mazworx built P11 head (shimlesss) running a GTX3076 .78 twin scroll turbo, E85, high boost

Kelford isn't on backorder till November, they're on backorder indefinitely lol

-A pissed Mazworx sales rep

[candyred_240sx]

Originally Posted by hanzbrady

Kelford isn't on backorder till November, they're on backorder indefinitely lol

-A pissed Mazworx sales rep

I talked with Kelford last night and they said November but did not sound to confident about that lol.

Any suggestions for what I should run in the mean time?

[hanzbrady]

Originally Posted by candyred_240sx

I talked with Kelford last night and they said November but did not sound to confident about that lol.

Any suggestions for what I should run in the mean time?

The only thing we've been able to get ahold of is N1's. however Nissan is now on backorder for those

[LuckyX2]

Originally Posted by candyred_240sx

So my Kelford 292/303 cams were damaged (don't ask) and now new ones are on back order until November.

Just wondering if you guys have any suggestions on cams I should run in the mean time that won't leave me too disappointed compared to the Kelfords?

The setup is a stroker sr20 (87mm 8:5:1 pistons x 91mm stroker crank) with a fully Mazworx built P11 head (shimlesss) running a GTX3076 .78 twin scroll turbo, E85, high boost

SR16VE N1 is a great cam for boost and is what I'll be running on my ~500whp build. They're only $425 new.

http://nissanraceshop.com/product/ge...ust-camshafts/