did you end up picking up HPT?

 

Not yet. My brothers going half with me and I'm going to his house monday to install the coils on his car. So ill get his half then and order it that night.

 

make sure to get the pro

 

I will for sure. Then I need to call glowshift for the cable.

I spent big on my gfs birthday so she was all "go buy something for yourself now." All I could do was laugh knowing that I already have haha.

 

Why return style?

 

Return style is better

 

Consistent flow thru all injectors. At high revs the 4th and sometimes 3rd cylinders can get starved because the proper amount of fuel doesnt have the chance to get there. By opening the end of the fuel rail with a return style you can better fuel supply.

 

And you heard that where?

 

oh wow

 

https://www.cobaltss.net/forums/showthread.php?t=217546

 

That would require a dinky pump and some huge ass injectors...

You would probably have to get a smaller (not physically, but one that flows less) than stock pump to make that happen..

 

That's just what I've seen on here. I just knew it was something I needed.

 

Heads up though. Im at 98% IDC at that point so I may bump it up 5 psi or so.

 

That's just what I gathered on here.

 

Noted. Did you base yours on 80# @ 43.5psi and go from there? Or did you start a little higher?

 

the car has a return line stock just not conventional

 

I started at 50 psi. I would recommend starting there, since your build will be similar to mine. Just make sure to tune the Return style correctly. Keep in mind at 50 psi the injectors flow more like 92 lb/hr injectors. So set the flow rate multiplier x injector flow rate to equal 92. You also have to keep the injector flow rate below 63.5

 

The flow rate multiplier doesn't work. It's been proven several times. Just set it at 63.5 and scale the maf. And cyl vol if you're using ve.

 

Can you elaborate on what you mean by scaling the cylinder volume?

 

Set ifr vs volts back to 1.
Take your actual ifr and find what percentage gets it to 63.5.
Multiply your maf by that %. Then, multiply cyl vol by that percent as well. This scales your ve tables.
Pull your timing way back and start tuning. Your g/cyl at wot will be a bit lower then before.

Also, sometimes it helps to start with a stock maf curve especially if you previously had your injectors set up with the ifr vs volts.

 

Head is on its way back to me and I just picked up a set of the fabled gmr cams and bates solid lifters from OTTP.

 

Thought you were going to get the stage 4 cams?

 

get your wallet out you also need longer valves and a machinist that knows how to setup the solid lash adj

 

Got a good deal on these. Depending on how much we're talking to get these set up, i may end up going that route.

 

I need to do a bit more reading and talk to you about both of those.