jus a quick update on the vipec. the wiring to reconfigure are fuel pump relay wire on patrol pin 8 to pin 18 on vipec, cooling fan relay wire on patrol pin 19 to pin 106 aux, pwr steering oil pressure signal wire on patrol pin 34 to pin 19, ecm power supply wire on patrol 57 to pin 59, and the ignition/distributor wiring which I have to confirm with jpc using 1 degree, and 120 degree.

 

Sounds good mate, will be able to wind the boost up to 20 psi with 8.0:1 for a bit of zest!

 

It will be awesome mate!! Just hope u get some sponcership from a fuel company haha

 

it might be close to 20psi Scott! im guessin +15psi to reach the 500hp mark. Yeah she'll be thirsty with all the fun il be havin at each set of red lights. How are your turbo tb45's goin guys? any dramas?

today I manage to get the front bumpers off, disconnect all the sensors, remove the fuel rail, and removed the manifold. I must say the ports on these heads are massive, possibly over ported from factory. no wonder they don't get moving possibly lost of air speed for an n/a motor. my stang head ports are smaller (race spec alloy cnc heads) n when comparing each cyl volume the patrol had 750ml's per cyl where the stang is 918mls and its going to be making +750hp so that's why im guessin these ports are a over kill for this engine hence they get going at higher rpm..? anyways the ports look great for some psi though, might jus clean up the castings up n the manifold can definitely do with a clean up!
btw guys how do I upload pics?
cheers

 

Mine is good with 210rwhp but I'm pulling motor out and putting in td42 as fuel is just ridiculous and also have to always run premium so it's expensive as ****

 

thought il put a quick update, block is bare, smoothed out all excess castings around the main bearing webbing and freed up oil return pots (below camshaft, which was blocked by 25% due to excess casting) and is now at the machanist, not o ringing the block, no room and jpc recommended not to. pistons n rods were oem specs in terms of size. will have a jpc custom cam (on order, not sure of the specs yet) don't need to go studs bottom end, Nissan bolts are over engineered (by the size of em) now for the waiting game however plenty of things to organise still!

 

$2 pov peep show

 

How come you're sticking with the long intake runners? With a front entry manifold I'd ditch them and run short runners (i.e. https://plazmaman.com/shop_itemdetail.php?itemid=375&cate=38). Did you go +1mm on the valves?

 

I thought gtr intakes or rb25 bolt patterns are different unles u get an adaptor machined up. And $2k plus adaptor. My mod with throttle body upgrade cost $600. When u got boost u can get away with a few things, if it was my stang motor yes i wouldv investd in the right manifold. I dun thing the runners wil starve as they all face down whilst the last runner gets direct air. Also they are nicely curved inside wher each runner become individual...

 

Also johno (jpc) advised a clean up (and cut) on the factory valves are fine.

 

And to my suprising the cam spec by jpc actually has less lift but more duration frm factory cam. Even though it wil be a 600hp it wil b quite a smooth cam stil (idle)

 

Looks like a cool build mate!

Any reason for such low comp? These days everyone is heading the other way.. high comp with boost. if the head has been cleaned up there's no reason why you can't run higher comp.. it'll be lazy as off boost too.
Obviously a different engine, but an example is a Coyote/Miami 5.0l.. boost + 11.1 comp and almost 500rwkw on 98.

 

Modern engines / performance parts have Modern quality metals which gives the ability for tighter tolerances, for example u cant build an old skool cast head v8 with them specs unless u hav some drag racing duration spec cam to compensate low rpm cyl pressure jus for the street. Its like my n/a 451ci 12:8 comp on pump fuel, thanks to the modern pistons and alloy heads avail these days

 

But won't this build have new pistons and a ported alloy head?
I can understand 8.0:1 if your running 30psi+..
Each to thier own!

 

The comp figure again was discussed with jpc with a safe figure esp those cold nite thrashings and unexpecting poor quality fuel. By memory factory is 8.5 or 9..?
Actually the head did not need any porting done but jus a clean up of minor excessive cast, they are massive factory spec. Well she'l be running max psi the 850cc injectors can be tuned to (15-20) also if i want to push out more hp, its only the limits of the injectors stopping it instead of tearing down the top end, only dyno figures will tell. Also to add this is my first turbo set up done n will be my first turbo car owned, wher i had to learn the whole turbo world n part matching, ive been an n/a man for a while, but im pretty happy with what i come up with.. Literally all the calculation work has been completed, short motor i had ready for a while now, basically jus got to final wash head, both manifolds, assemble n shes ready for the engine dyno