Bunch of dumb questions

[Dave]

Pretty soon I will be adding +20% injectors and a cut out raiser, and upping the boost to only 16psi. Im afraid of running that high on stock pistons so I want to be sure the air charge is low enough to where they can handle it.

What should I do to decrease the air charge? I was thinking either go with water/alky injection, or should I just upgrade to a NPR front mount intercooler?

Im sure if I get the air charge cooler, it will actually be safer running 16psi with larger injectors vs. me running 14psi with stock injectors and crap TII intercooler.

[Joryn]

Do Both! hehe, Intercooled and alky sprayed would definitely help your charge temps

Which one first? I'd say intercool first as that's probably going to make the most difference unless you run a pretty intensive alcohol setup (See DblTrbl's setuphere).

I don't think anyone here would say that running alcohol "negates" the need for an IC, in fact I remeber a post on that a little while ago where a race motor was run on alcohol with no ic, but it was a pure alcohol, not a secondary sprayer setup. Here's that thread ***No Ic??***

Hope it helps , good luck regardless of what direction you choose.

[Dave]

Very nice. It doesnt seem that hard to build something like that...maybe Ill give it a shot!

BTW am I the only one who noticed his FPR is on backwards?

[Joryn]

Quote:

Originally Posted by Dave Very nice. It doesnt seem that hard to build something like that...maybe Ill give it a shot! BTW am I the only one who noticed his FPR is on backwards?

Heh, now that you mention it...That is a little strange. I wonder why he set it up that way.

So which way do you plan on going? Something along Carl's route or are you looking for something a little tamer. To be honest I think Carl's system is pretty kick butt, I'd like to see how other people find it works out. I"m tempted myself to find another intake to kinda wreck by drilling holes into it and doing something like that.

Good luck to you! Keep us posted on your progress

Oh as a side note, my brother actually just got a 90 spirit (Fully loaded though = heavy heh). Any spirit specific tips/tricks you could suggest for him? ie: how to get that stinking huge BOV out of the air box, it looks like it's one unit and you'd have to cut up the box to get it out. You're running one of these units right? Thanks for the help

[turbovanman]

Theres nothing wrong with running 16 psi on the stock intercooler, just getting a little restrictive.
As for +20's on a stock 2.5 cal, will be way to rich, you will go thru a tank of fuel a night, been there, done that. You need to turn the base fuel pressure down to around 35 ish and see what happens.

Its never a bad time to upgrade intercoolers. The alc kit would be a good thing also.

The stock pistons will take anything you can throw at them, see sig? but if you get it wrong-detonation, there ashtrays. A cold intake setup will really help also, get some fresh cold air into your airfilter, makes all the difference in the world!

[Dave]

Ill be working on that intake once you send me some pics of it! lol sirusvi@yahoo.com Ill host them for you.

But do you honestly think the 101,000 mile stock pistons will handle 16psi??? If so, please convince my Dad!

With the +20%'s I will be buying an Accufab AFPR. How do I adjust the base pressure? I think I have to unplug the vac. line going to the FPR and take the (what kind of gauge do I use for this?) gauge and set the pressure while at idle...not too sure.

Thanks again.

And Joe, if you will be at SDAC I can show you exactly how I took the BOV out of the air box, it's pretty kool! But if not heres how I did it...

I took the entire air box out, and saw'd off the half of the air box with the BOV attached, then saw'd that in half. Then I took a dremel and touched up all the plastic pieces and stuff then stuck it right back onto the pipe.

Do make sure though, that the vaccum line running to the BOV is wide enough and try to make it as short a run as possible to the intake, it sounds like crap if you dont. Right now it sounds damn good and loud! It putters first then gives you a loud WHOOSSH! <--Soon to be new license plate, by the way.

Also I might just buy a TI intake off Kris and try that alky. setup like DblTrbl's.

[turbovanman]

Quote:

Originally Posted by Dave Ill be working on that intake once you send me some pics of it! lol sirusvi@yahoo.com Ill host them for you. But do you honestly think the 101,000 mile stock pistons will handle 16psi??? If so, please convince my Dad! With the +20%'s I will be buying an Accufab AFPR. How do I adjust the base pressure? I think I have to unplug the vac. line going to the FPR and take the (what kind of gauge do I use for this?) gauge and set the pressure while at idle...not too sure. Thanks again.

If the tuning is right, 16 psi no problem. Its not so much the boost but the rattle when you detonate.

As for base pressure, hook up a fuel gauge to the fitting on the rail or you can buy one and splice it into the fuel line, start it up, disconnect vacuum line and set to 35 psi. Go for a drive and watch air/fuel guage. If its good at wot, leave alone, if not, lean it out or more fuel. TO adjust, you need an 11mm wrench and an allen key. Loosen nut and turn screw in to raise, out to lower.

[Dave]

Sounds easy! Thanks Simon.

What should I do? By a rail mounted gauge and keep it inside, or put the gauge outside on my cowl?

[OmniGuy123]

Quote:

Originally Posted by Dave Sounds easy! Thanks Simon. What should I do? By a rail mounted gauge and keep it inside, or put the gauge outside on my cowl?

Never bring fuel in to the cabin of the car, or if you do have an epitaph prepared ahead of time.

Also dont hook up a gauge to the FR permanantly, as it will eventually break the shrader valve off of it.

As previously stated you could splice into the fuel line to run the gauge. There should be a post somewhere about how to set that up.

[tonyz2897]

Quote:

Originally Posted by Dave But do you honestly think the 101,000 mile stock pistons will handle 16psi??? If so, please convince my Dad!

The 135,000 mile stock pistons in my old CS stood up to 21+ psi on pump gas through a stock Talon cooler with no problem.
The new stock replacment pistons in the Pacifica have seen 27 psi on pump gas with the same Talon cooler and alky injection.
Tony

[87DANCEonYOU]

A friend adam went low 12's with stock pistons and nitrous....Like simon said, They will take anything but there is no room for error.

BTW Ill be going down to Thompson soon and ill pm you!!!