Current mods in sig.

I have a 10lb spring, and I'm going to be buying a manual boost controller. Shooting for 12-16lbs on a stock motor.

Things I'm changing/adding

1000cc injectors
ARP head studs
New clutch soon
Boost controller

And obviously a dyno tune.

Should I worry about my fuel rail or just keep it stock?


ALSO! I have a rebuilt gsr head, should I just slap that bad boy on instead of reusing my stock head? My block is stock, and I am worried about throwing a rod, melting a piston and damaging my head. I bought a lsvtec motor a few days ago and I am in the process of buying rods and pistons, but I am no hurry to do so, and if I use the gsr head, I won't be running as much boost, probably 12-14lbs which is 300-330whp. I want to keep it as safe as possible with the stock block.

Opinions, knowledge, criticism welcome, Thanks.

 

Keep stock fuel rail

 

what im do you have for that gsr head?

 

It came with the stock one and I don't have any interest in dropping a couple hundred for a ported one

I do see a 68mm blackworks TB on craigslist, would I benefit from that? **** just remembered I need a MAP Sensor too -_-

 

if youre reluctant to buy a skunk2 im, would u buy a vtec conversion kit?

if not stay ls. on average a ls hits 300whp at 14psi. u can save money for your lsvtec build by staying ls for now.

a 10psi ls is pretty quick

 

A conversion kit consists of a head gasket, sandwich plate, a plug and the oil line? I planned on buying the plate and hg separately, and I have the line already, unless i'm missing something?

 

Yea that's what they come with. Some will also come with headstuds

 

cool. I wish I had my motor here with me so I can understand the gsr head better.

So there is only one oil line feeding into the block, and is that it for oil lines? The guy I bought the motor from said I have to buy an oil pressure switch, will oil be routed to this?

Last but not least, my ecu is currently chipped. Will I need to buy a vtec ecu kit or anything of that nature before I bring it to be dyno tuned?

 

Its an oil line from the block to head, to supply oil to the head. You you need a basemap for your exact setup to at least get you to the dyno.

 

alright so will I have to wire anything for vtec? I was under the assumption I have to wire the vtec to the ecu, plus do something with the knock sensor. know I have more research to do, I think I only have to solder a couple plugs from the gsr harness I got, not too sure yet, my motor is ob1 and the harness i got with the motor is obd2

 

Yes vtec needs to be wired if you dont have a vtec harness

 

so i've read concluded this kit needs to be installed into my p75 in order to run vtec.

http://www.xenocron.com/vtec-convers...b2871d9fc398cc


Also i'm guessing I have to wire it like so? but this image doesnt go into detail.

 

that kit is for your ecu. you have to solder it into the board.

 

correct, you need to send the ecu to xenocron and have it vtec converted, then wire everything up........

 

It'll b better if u just sell ur p75 and buy a p72 or p28 less headache with the fact u might not do it right and damage ur ecu

 

Which turbo are you running? That makes a big difference in your plans.

-keep the stock fuel rail
-get a 3bar MAP
-convert to LS/VTEC and port the stock GSR IM...take the butterflies out and clean it up with a dremel (the cheap way to make something similar to the Skunk2)
-reliable boost controller
-retune ... if you have access to E85, that adds a bit more safety into the equation (since its ~106oct)