The Sr20/Sr22vet thread

[s13silvia123]

Originally Posted by PRT73

interresed , you have picture ? and the price for the setup ? thanks you

let me get a hold of the person I got them from. he's the main dealer for the custom P12 SR20VE stuff

which VE head do you have? P11 or P12?

you'll need the valves and machine them for clearance. also machine the retainer to these specs

like this

https://1drv.ms/u/s!AqTGJCzpW1E8hEmP...NM1fZ?e=Ks7ZId

https://1drv.ms/u/s!AqTGJCzpW1E8hEpd...R2D_E?e=eRk8bC

I believe those are in metric so you'll understand them or a machinist will.

[PRT73]

im looking for p12 sr20ve head , the p11 sr16ve is more best for turbo setup ?

[d9m13n]

Originally Posted by PRT73

im looking for p12 sr20ve head , the p11 sr16ve is more best for turbo setup ?

I have a p12 head with N1 cams for sale currently

[PRT73]

Originally Posted by s13silvia123

let me get a hold of the person I got them from. he's the main dealer for the custom P12 SR20VE stuff

which VE head do you have? P11 or P12?

you'll need the valves and machine them for clearance. also machine the retainer to these specs

like this

https://1drv.ms/u/s!AqTGJCzpW1E8hEmP...NM1fZ?e=Ks7ZId

https://1drv.ms/u/s!AqTGJCzpW1E8hEpd...R2D_E?e=eRk8bC

I believe those are in metric so you'll understand them or a machinist will.

Thank you for the photos, editing very interesting! I think follow, if you have the link of the machiner and the overall price, valve + shims + adjustment

thank you

[PRT73]

Originally Posted by d9m13n

I have a p12 head with N1 cams for sale currently

the purchase problem in the united states and customs price + transport, how much do you sell?

[PRT73]

for a turbo mount on sr20vet with 550 whp, which cam shaft are the best torque and power levels to have torque down?

[brndck]

Originally Posted by PRT73

for a turbo mount on sr20vet with 550 whp, which cam shaft are the best torque and power levels to have torque down?

stock cams will be fine. if you really feel like spending money in that area

https://www.mazworx.com/store/p/370-...shaft-Set.aspx

[d9m13n]

Originally Posted by PRT73

the purchase problem in the united states and customs price + transport, how much do you sell?

$1500usd plus shipping if youre interested

[PRT73]

Originally Posted by s13silvia123

let me get a hold of the person I got them from. he's the main dealer for the custom P12 SR20VE stuff

which VE head do you have? P11 or P12?

you'll need the valves and machine them for clearance. also machine the retainer to these specs

like this

https://1drv.ms/u/s!AqTGJCzpW1E8hEmP...NM1fZ?e=Ks7ZId

https://1drv.ms/u/s!AqTGJCzpW1E8hEpd...R2D_E?e=eRk8bC

I believe those are in metric so you'll understand them or a machinist will.

I use p11 head with sr20ve cams, my max rpm and expected to 8500 on 550/600 hp possible to keep the shims and just spring supertech 120lbs?

[PRT73]

Originally Posted by d9m13n

$1500usd plus shipping if youre interested

sorry with the calculation the price is too expensive, I prefer to find in europe

[PRT73]

Originally Posted by brndck

stock cams will be fine. if you really feel like spending money in that area

https://www.mazworx.com/store/p/370-...shaft-Set.aspx

lol, no it will suit me perfectly, I was just looking if cam sr16ve was better for torques

[s13silvia123]

Originally Posted by PRT73

I use p11 head with sr20ve cams, my max rpm and expected to 8500 on 550/600 hp possible to keep the shims and just spring supertech 120lbs?

this is the person to get a hold of.

Jose Beltre

look for him on facebook.

i sort of forgot his user name on here. maybe Seablt something like that.

i bought a lot of stuff from and his does deliver them on time or for a little more depends on or how you want your stuff done. you'll also have to understand that there's also a lead time for the custom parts too.

[turtl631]

I have some engine carnage. Anyone looking to sell a P11 head?

[d9m13n]

Originally Posted by turtl631

I have some engine carnage. Anyone looking to sell a P11 head?

I’m selling a p12 head with n1 cams if you’d be interested

[turtl631]

Saw that, already have everything set up p11 and I actually have a set of N1 cams too so I'll pass.

[RalliartRsX]

Originally Posted by turtl631

I have some engine carnage. Anyone looking to sell a P11 head?

Dude, Def gon be pissed!!

So what happened?? Been finally hitting the HPDE trail this this?? Ive seen zero updates from ya

[turtl631]

Oh he's well aware, we talk all the time. In the end I think a money shift with a transient overrev to 9600 may have caused some float. I've done a handful of track events with it but a few engine problems as well as having two kids since I've gotten it has cramped my style. In the end it's just been easier to take the daily driver out on the track...

The longer story is I bought the car a little over 2 years ago. I took it out on track once and the sweet custom lightweight alternator bracket broke, but I also Miss shifted and had that small overall. Car drove okay and got me home but I had cracked a few retainers. Kid was born, over the winter got the head fixed up or so I thought, and swapped to the z33 transmission. Last year tracked it a few times with some various issues with the tune. Def actually passed through town and we did some street tuning. Last event last year it was down on power. Had another kid this year and I couldn't get the car to start I ended up finding a damage spark plug on cylinder 4. Took the head off and majority of the intake valve guides head cracked off and the head has significant foreign object damage. So, I need a new head as well as two new pistons. With two kids under two it's a little hard to work on the car much less update a build tread on a dead forum.

[RalliartRsX]

So who here is running a EFR and a twin or single port TS gate??

I have a single port, and I suspect it is unable to properly control boost via solenoid. No matter what we did, it wouldn't do more than wastegate pressure.

Looking into a twin port now, but just curios as to why the single port wouldn't work .

[speedingmofa]

If it's unable to control boost, i'd expect the boost to keep creeping up. Your issue is the other way around.
Could that point out you have way too much backpressure? I.e. your turbine housing is too small? Maybe a backpressure gauge could tell you more whether that's your issue.

[RalliartRsX]

Its a T4 twin scroll, so 0.8 (or .93 as BW EFR measure it) turbine housing. We pulled the exhaust off from the cat back, so it was only downpipe, and still the same issue. So it wasn't a back pressure issue. We picked up less than 8WHP when we pulled the cat, so definitely wasn't a back pressure issue. And the same occurred.

Gate was just wide open it seems regardless of duty cycle. We could get it to spike mid range, but it always went back to wastegate pressure and tapered off by 7K RPM.

[speedingmofa]

Originally Posted by RalliartRsX

Its a T4 twin scroll, so 0.8 (or .93 as BW EFR measure it) turbine housing. We pulled the exhaust off from the cat back, so it was only downpipe, and still the same issue. So it wasn't a back pressure issue. We picked up less than 8WHP when we pulled the cat, so definitely wasn't a back pressure issue. And the same occurred.

Gate was just wide open it seems regardless of duty cycle. We could get it to spike mid range, but it always went back to wastegate pressure and tapered off by 7K RPM.

You've removed everything post turbine, i.e. elbow downpipe etc. The issue usually never is there unless it's blocked.
I was referring to the backpressure between engine and turbine wheel. So pre-turbine pressure.

[RalliartRsX]

There shouldn't be. Its a Sinco custom top mount mani with I think 1.25 primaries. Its a semi equal length twin scroll manifold. Should be fairly uninhibited flow to the turbine.

[speedingmofa]

Originally Posted by RalliartRsX

There shouldn't be. Its a Sinco custom top mount mani with I think 1.25 primaries. Its a semi equal length twin scroll manifold. Should be fairly uninhibited flow to the turbine.

No, not the manifold itself.

To me it sounds as if there is something blocking you from making any more power. You said it yourself, it doesn't hold anymore than wastegate pressure. So something seems to be blocking the air coming out of the turbine, the pressure is strong enough to push against your wastegate spring, preventing the turbine from making any more boost.

Could it be that the turbine housing/wheel combination is the "blockage"?

You may want to check out this article: http://www.stavtech.co.uk/home/exhau...nes-never-good

[RalliartRsX]

I doubt its the turbine wheel as it's the same turbo setup evo boys have made 600+awhp on. So I doubt asking 450whp with of airflow is a limiting factor. Match bot states it should be good for an easy 450 whp

Also, we can get it to spike in the mid range, its just unable to hold the pressure the more revs we give it.

[S14rebuild]

You sure u have the wastegate/boost controller plumbed properly? How many ports does ur wastegate have?

[RalliartRsX]

So we checked a few times to confirm. I may actually swap the vacuum lines now that time home, but pretty sure they are ran correctly. We tried both the EFR and the MAC valve

Single.port internal turbosmart iwg75 gate

[kojiki88]

Hey guys quick question. Does the P12 Valve cover work on the P11 head? If so, would the P11 valve cover gaskets work with the P12 Valve cover?
Thank you very much for any input.

[RalliartRsX]

^Yes and No.

[kojiki88]

Originally Posted by RalliartRsX

^Yes and No.

Awesome, Thank you for the reply. I'll be getting P12 valve cover gaskets as well.

[kojiki88]

Sorry to bother everyone but I have another question. So I have finished setting up my motor, bled the coolant system and its maintaining a constant 158 degrees Fahrenheit.
Its running a Nismo thermostat, Clutch fan setup with a GKTECH fan.
Is it normal to see 158 degrees and not get any warmer?
Thanks