Question about spark plugs

[my97blackgst]

Hey,

I am about to put new plugs/wires in my car. I have came across some NGK Iridium IX plugs and some NGK wires. Are these any better than bosch platinum plugs and wires? Also I want to get a hi flow cat, any noticable power gains in any of this?

Thanks
Ben

Also when asked, what kind of plugs would be best, hot or cold plugs, I plan on using the T-25 to the max,

[AcesHigh]

Iridiums and platinums get your engine hotter. As does the Bosch +4. If you plan on keeping boost stock, get those; otherwise get some NGK copper plugs, gapped slightly less than stock. It keeps your engine cooler at +15psi boost.

And a little on the cat. Not drastic gain, but it'll help.

[ashah000]

Just gut your stock cat if you dont have emissions test.
I heard for turbo cars, the gutted cat, it really helps the turbo spool up faster.

[my97blackgst]

Awesome, Thanks for your replys, as you can tell I am new to tuning and have been reading on and on, these forums are great, Here is another idiot question, on a stock GST how much boost are they allowing? I just read the T-25 can make up to 20psi but bleeds off before redline? So straight from the factory where are they cutting it off? and what mods can I do to get the maximum 20psi out of it?

Thanks
Ben

[AcesHigh]

It's not how much boost your turbo can make that should worry you, it's how much psi's can your internals handle that should really concern you.

[TurbosR4me]

The 2g Bov leaks at I think 14 psi so until u upgrade that. you cant handle much

[my97blackgst]

Hey,

I guess replacing the BOV is in the coming future. And after I replace my BOV would I need to get a newer MAF to further increase my options or would a boost controller work for me? The questions continue with how much boost can I take safely with my stock internals? If anybody knows that would be awesome.

Thanks
Ben

[ricerboy8627]

I may be a little late on this but this is a comment on high flow cat. I had one on my RS with greddy header on one end and Apexi N1 on the other and the high flow made my car sound like crap. When I hit about 4000 rpms or so it would start to scream and I just hated it. I just switched the old one back in and I love it sounds 10X better. Now I dont know if it was just the cat I bought or if gutting it will do the same thing but for me I didnt like it. And this also messed with emmissions. My check engine light came on because of this and I know it wouldnt pass just with that. Hope that helps. Oh and you can always try it anyways I just thought I would tell you my story.

[TurbosR4me]

A new MAF? Are we talkin about a 1g or 2g....? Because you said T-25, but ive only heard of people putting a 2g MAS on a 1g. Never heard of 2g owners upgrading their MAS but i could be wrong. As for a boost controller. Its a must if you plan on turning up the boost. I would go with the Greddy Profec B, or a MBC if you dont mind gettin out of your car to change your boost. Stock 2g internal strength really isnt a problem until about... 350hp?

[soyee7]

a stock t 25 turbo from my experience can handle about 16 lbs of efficient boost. You can spike your boost all the way to 20 if you want to blow the turbo up real fast, but its not how much you can boost but how efficient the boost is. I had every airflow component hooked up to my car such as intake full 3inch exhaust, greddy FMIC, and i could only boost efficiently at 16 lbs with the stock turbo. When you upgrade you will notice even more efficiency in your boost. I had better gains with the 16g at 14lbs than i did with the t25 at 16lbs. Just trying to help you out a little. But when tuning your car with a boost controller youll want to turn your boost up properly so that it holds a constant pressure throughout the whole RPM range. Once you mess with it a little bit youll uderstand how and when your turbo boosts most efficiently.

[my97blackgst]

Hey,

Yes from what I have been told I do have a T-25 on my car. And yeah it is a 2g. I have no intention of blowing my turbo so i'll play it safe and only attempt 16-17psi. Probably not a huge difference but none the less it is a little better. So it sounds like I am up to a new BOV, a boost controller, to sqeeze the 16psi out of it. Let's say I am ready to toss $1,000 in it, BOV, boost controller that's about $600 what else would you put in your car? Could I get a 16g turbo or larger for about $400? My goal is about 300hp right now

Thanks again,
Ben

[AcesHigh]

Stay safe and get a larger intercooler.

[my97blackgst]

Safe I is how I will play it, Intercooler it is. Should I try to find a front mount? or a beefed up side mount intercooler?

Thanks
Ben

[BoostedSpyder]

ok, i just want to straighten things out a bit... [i tried to be concise about the words, so you can just do cut and paste searches, and also common abbr's so you won't have to ask later ]

your MAF is fine untill you get heavy into modding and want a MAS translator setup. stock internals are good to 450hp, or about 180hp over what a t-25 can ever produce.
first and foremost you need a boost gauge. the one on your dash is shit, and it doesn't even have #'s on it. almost all of them are good, if you got the cash go with an electronic one. this should always be your first mod, because now you can see what your turbo is doing. next get an air filter, like the K&N FIPK, and do the Dump Tube Hack. sometime later you will also want to look into Intake Pipes like Injen [$$$] or look in the 'Table of Contents' post for the Home Depot POS Racing pipe [$]. at this point, an exaust will be more important, though. after that look into a cat-back exaust, downpipe [abbr: DP], and depending on your emissions laws, you can get a cat-eliminator DP. i just took out my stock exaust, turbo-back and set it aside for when emissions come around, and bought the cat-eliminator DP. you will want a 3" exhaust. with a turbo, you want zero back pressure, so just go with a 3" exhaust. this will give you noticable power gains, without even touching the turbo boost pressure. you can remove the Boost Control Solenoid Restrictor and that will up you a coulpe of Lbs. after all this, then upgrade your Upper Intercooler Pipes [abbr: UICP]. the stock pipes are plastic and there is a part [where the pipe goes under the fuse box] that flattens out [this is bad]. you can get GReddy pipes that are flanged for the GReddy Type-S BOV, or Dejon Tools UICP's that can be bought flanged for other BOV's. for cheaper, you can get a 1g stock BOV that will work very well. after all of this it would be time to start upping the boost with a Manual Boost Controller [abbr: MBC; cheap] or an Electronic Boost Controller [abbr: EBC; not so cheap] like the GReddy Profec B-spec II. when you up the boost it is also time to get a bigger fuel pump to compensate for the increased air, like a 190 litre per hour, and look into the fuel pump re-wire too. upgrading your side mount intercooler to a Front Mount Intercooler [abbr:FMIC] will happen at this point because now is when you start wanting to get a bigger turbo. the stock intercooler, while small, will suffice for the t-25 up to this point, or any other turbo if ran under the right pressure [read: safe], which doesn't mean it will be making the most power. the t-25 dropps pressure as RPM goes over 5500 because the internal wastegate can't hold that much pressure without blowing open. betting a bigger intercooler will cause the turbo to have to work harder to push the same pressure because of the bigger longer pipes the air has to be pushed through. the only thing i noticed with the bigger FMIC/T-25 setup was more even power at Wide Open Throttle [abbr: WOT] and the boost dropps off at a slightly lower RPM. get a FMIC first, then start looking at turbo's. at this time you will also have gained a sizable amount of knowledge about your [our] DSM's. check the sticky thread on the top of this forum for websites pertaining to tons of knowledge on this stuff. also click the link in my signature to see some ideas as to what you can do to your ride. i'm pretty much maxed out as far as a t-25 setup in concerned. be safe and 'take it easy!' hope this clarifies your head!!

[BoostedSpyder]

i just noticed you have an AT, so you will also want to look into new Torque Converters.

and stock spark plugs and wires are the best for your car. they are good into the 9's i believe...