HELP need some advice -tuning+safe psi

[gsx187]

Hey all got the car couple of months ago and I think I need a tune up..Previous owner put lots of mods in but no tuning done to the car. Just wondering with my set up what do you guys prefer for tuning? Was thinking to purchase DSMlink v3 lite or SAFC 2. My goal 300-450 hp. Whats a safe PSI as well?

Mods

-Apexi 3 inch exhaust
-downpipe
-t3/t4 turbo manifold
-External Tail wastegate 38mm with o2 dumptube
-Stage 3 t3/t4 hybrid turbo (T04B/E 50 TRIM A/R 60) good to 450 hp
-Vibrant FMIC and hard piping
-Walbro 255 Fuel Pump
-Blitz BOV (recirculated)
-boost guge
-A/F guage
-turbosmart MBC (set at 10 psi)
-stock injectors (for now)
-CLUTCH-custom four puck Kevlar disc with 450 hp pressure plate
-NGK spark plugs and wires
-apexi turbo timer

Thanks

 

[2GRick]

Hey all got the car couple of months ago and I think I need a tune up..Previous owner put lots of mods in but no tuning done to the car. Just wondering with my set up what do you guys prefer for tuning? Was thinking to purchase DSMlink v3 lite or SAFC 2. My goal 300-450 hp. Whats a safe PSI as well?

Mods

-Apexi 3 inch exhaust
-downpipe
-t3/t4 turbo manifold
-External Tail wastegate 38mm with o2 dumptube
-Stage 3 t3/t4 hybrid turbo (T04B/E 50 TRIM A/R 60) good to 450 hp
-Vibrant FMIC and hard piping
-Walbro 255 Fuel Pump
-Blitz BOV (recirculated)
-boost guge
-A/F guage
-turbosmart MBC (set at 10 psi)
-stock injectors (for now)
-CLUTCH-custom four puck Kevlar disc with 450 hp pressure plate
-NGK spark plugs and wires
-apexi turbo timer

Thanks

I would make sure all the basic maintence is done first before you do anything else. It looks like you will need a FPR as the 255 will overrun your system. You will need 950s injectors at least to hit that goal. With stock internals (at least ARP the head) 20 psi is safe with a good tune, everyone will tell you the tune is the key. I would go very slow and keep the psi at 10 until you sort evrything out. You def will need DSM v3 lite as SAFC 2 will not tune more than 750s. With that kind of HP goal it's going to take a trip to the dyno (or trips) to be on the safe side. Kind of sounds like the previous owner really did not follow a common sense build approach. GL

 

[gsx187]

Hey thanks for the reply.

"Kind of sounds like the previous owner really did not follow a common sense build approach. "

Yeah I guess he did not..But I will pick up where he left off and add the necessary mods. You said ARP the head. You mean put the ARP bolts on the manifold and head gasket? Thanks for the advice will get the mods you suggested. I guess with the dsmlink I will need a EPROM ecu as well.

 

[BLINKY619]

Hey thanks for the reply.

"Kind of sounds like the previous owner really did not follow a common sense build approach. "

Yeah I guess he did not..But I will pick up where he left off and add the necessary mods. You said ARP the head. You mean put the ARP bolts on the manifold and head gasket? Thanks for the advice will get the mods you suggested. I guess with the dsmlink I will need a EPROM ecu as well.

arp head studs.... not saying you should run what i run but i have mine set to 20psi witch every one here would say not to do it... plus i got stock 450's and no way to tune.... this is the way i roll..... i wonder how long my motor will last but it hauls ass... as far asi kno no one can keep up with me around were i live... smoke evo's and sti's.... and no not modified ones but stock ones...!!!! they rip me off the line but i catch up baby...!!!!

id suggest getting a afpr a eprom ecu and ecmlink v3.....!!!! other than that some good injectors and proper tune will get you there with no problem...!!!! as for what you have right now..... YOU CAN SAFELY TURN UP THE BOOST TO 14-15PSI...!!! of course with proper maintenance..!!!

 

[2GRick]

Hey thanks for the reply.

"Kind of sounds like the previous owner really did not follow a common sense build approach. "

Yeah I guess he did not..But I will pick up where he left off and add the necessary mods. You said ARP the head. You mean put the ARP bolts on the manifold and head gasket? Thanks for the advice will get the mods you suggested. I guess with the dsmlink I will need a EPROM ecu as well.

You really only need to put them in the head.....80 foot/lbs torque. Real cheap insurance. Not really glamorous but will keep you out of expensive trouble. Almost all turbos have HG problems without studs. Read the many up grade path threads on the site , VERY SOUND ADVICE. These things get expensive very fast when you screw up. Be sure and only use Mitsu timeing belt.

 

[habitatguy187]

Almost all turbos have HG problems without studs.

This is the second time in two days someone has talked about how "weak" the stock headstuds are. Granted 7bolt studs aren't as strong as 6bolt but people have still put them over 25psi with a good tune.


We don't own honda motors guys.........

 

[BLINKY619]

We don't own honda motors guys.........

hahaha true true...

 

[Calan]

This is the second time in two days someone has talked about how "weak" the stock headstuds are. Granted 7bolt studs aren't as strong as 6bolt but people have still put them over 25psi with a good tune.


We don't own honda motors guys.........

Amazing isn't it? It's almost like people don't even bother to read the upgrade path articles...and I'm pretty sure head studs aren't even mentioned in that.

Personally, I'd be more concerned with dumping that A/F gauge (assuming it's NB) and getting a wideband and something good to log/tune with, but that's just me.

Whats a safe PSI as well?

If you have to ask, probably around 10psi. If you really want some more info, a quick search turns up this thread with 1156 posts to look through.

 

[gsx187]

Ok thanks guys for the advice..I'll stick with 10psi for now until i get the necessary mods required to turn up the boost and prob DSMlink v3 lite.