Hey guys,

I've got a few questions that I can't seem to find the specific answers to here or anywhere on the net.

A bit of background... i'm in Australia, I have a complete SR20VE motor with SR20VE loom and ECU and it will be going into a NX coupe (what you guys would know as a NX2000)

My plans are to raise the CR to around 11.5 - 12:1, I want to rev it to about 8-8500rpm, and I'm looking to achieve about 150 - 160kw's at the wheels (200 - 220whp) but the power figure isn't my main objuective.

So for my questions.

1) I've been doing a bit of reading about SR16VE pistons and the N1 pistons and I have read that they need some modification if they are put into a SR20VE but no where can I find exactly how they need to be modified on the top to get them down to a usable CR and not interfier with the valves.

2) Is there some way to manualy lock the centre of the rocker so that I can check the valve to piston clearence on the high cam because I also want to use the N1 cams.

3) Did the N1 come with a higher volume oil pump then the SR20VE and if so does anyone know the nissan part number or where i can get one from.

Thanks for any help you can give me

Cheers Rob!

you need to search a bit more, but it does look like you attempted to find out on your own.

ill help you out.

run the 16ve pistons straight up. that will raise the compression to 12:5:1 i believe, maybe be a tad lower but it will be no higher, and will be fine on 93 octane.

you will have no problem with clearance even when running n1 cams.

stratton.

you need to search a bit more, but it does look like you attempted to find out on your own.

ill help you out.

run the 16ve pistons straight up. that will raise the compression to 12:5:1 i believe, maybe be a tad lower but it will be no higher, and will be fine on 93 octane.

you will have no problem with clearance even when running n1 cams.

stratton.

12:5:1: D
The new typeR civic sedan ( 2008 japan) i think has that same cr

In Jamaica, With almost that same setup in a pulsar, the pulsar has pulled away from that typeR civic (I know that civic is very impressive)

You have the right plan, do it right and all new k20s will be away in your rear view mirror: :biggthump biggthump

It's more in the 13ish not 12 for the compression ratio with SR16 pistons. The N1 might have a bigger oil pump, the Tensioner is not the same as the SR16 & SR20. Since you have a NX already did it have the SR20DE? if so just chip the stock ecu and don't worry about it.

Sounds fun I want to do this with my VE!

yeah the nx has got a SR20DE I'm going to use the VE ecu because it has the switching capabilities and everything all ready and I can tune and controle all of thoes functions. Also we've got 98RON fuel so the compression isn't going to be a problem on pump fuel but i don't want to go any higher then 12:1

Hi yellow4g63. How about N1 head with the whole set of stroker kit from sr20ve including piston. Would the compression lower than 12 with this combinations and couple with 1.0mm cometic gasket?

All stock the 16ve pistons in a 20ve will be 13.6:1 CR

but your motor together bolt the head on, bolt the cams in and then rotate the crank and cams, hold the pin for the center lobe as you turn and it will stay in place for an entire crank rotation

Just use your 20ve oil pump. Dissaemble it and clean it and you will be fine

you won't hit your power goals without cams talk to Kelford

Hi yellow4g63. How about N1 head with the whole set of stroker kit from sr20ve including piston. Would the compression lower than 12 with this combinations and couple with 1.0mm cometic gasket?

The compression with the N1 head should be a little higher than the stock SR20VE because I think the N1's head is shaved from the factory. I'm not 100% at what it would be ***. I'm rebuilding my motor with SR16 pistons and going to throw in some Franlking Stage 4's. Should bring my compression down to the 12's and give me a nice power band :).

Yer I'm not too worried about the power at the moment. The power making parts will come later down the track but I want to take care of the internals now while I've got it all in pieces. So I'm thinking I'll just use the SR16VE pistons and take 1mm out of the valve reliefs. Correct me if I'm wrong but that should get me around 12:1

sr16 n1 pistons, can they be put in a 20v, and use a 20v head with n1 cams? nothing is too specific..

Yer I'm not too worried about the power at the moment. The power making parts will come later down the track but I want to take care of the internals now while I've got it all in pieces. So I'm thinking I'll just use the SR16VE pistons and take 1mm out of the valve reliefs. Correct me if I'm wrong but that should get me around 12:1

yeah there are people on this site who have done something similar and got 12.1 have a search and talk to them

also dr drift in melb can remap the ve computers, would be much better than buying external cam switchers and so forth

yeah sam already tunes my car and he'll be doing the VE once it goes in.

just un update i have ordered some sr16ve pistons they should be here hopefully next week. I'm also looking for some valve springs to suit the N1 cams what is everyone using. I was leaning towards the BC dule spring kit with titanium retsiners (part #BC0240)

3) Did the N1 come with a higher volume oil pump then the SR20VE and if so does anyone know the nissan part number or where i can get one from.

13500-1N501 U14,P11,N15,B14,Y11 SR16/20VE (N1 including)
13500-6M00A (old number:13500-6M000) B15(10/1998-05/2002),N15(10/1999+) SR16VE
13500-AW000 P12,T30 SR20VE/VET

Wishing you best results with your project. Keep us updated!;)