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Discussion Starter #1 (Edited)
I have been searching and reading up on turbo's and everything as i have zero experience with them and i still have a lot of questions for everyone. I will split it up into a General Turbo info post and a ON3 Performance Foward Facing Kit question post.

--GENERAL TURBO INFO/QUESTIONS--

What exactly is the AR size hot/cold?

What size turbo flanges are there? Most common?

How do you determine what size AR to get? Should you get different size AR for auto vs manuel?

What size AR for faster spool vs slower spool but more higher rpm power?

Where do you put in your wideband?

What is the average max WHP for what size pipe from turbo to intercooler and intercooler to motor?

Most common size pipe?

How do you determine what size intercooler to get?

For turbo'd FI cars is blow through or draw through the best?

What is considered a good RPM for a kit to hit full boost? (obviously it widely determines on what car/motor/turbo but i know getting full spool at 5,000rpms or so is not very good)

What exactly does the wastegate do?

How do you determine what size wastegate to get?

How do you determine what size blow off valve to get?

What causes that "fluttering" blow off sound, is it compressor surge or the blowoff valve?

What exactly is "compressor surge"?

Are turbo blankets a good or bad idea?

If your not scared to rot out the pipes use wrap on the hot side and reflective tape on the cold side correct?

How exactly does the air flow coming from/out of the exhaust? (comes from exhaust, goes into _____, then into _____, then into ____, etc...)

How do you know what size MM turbo will be right for you?

Whats the best turbo options? (ball bearing, oil cooled, water cooled, billit wheel, etc...)

Feel free to share any other information that i have not covered.
 

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Discussion Starter #2 (Edited)
ON3 Performance FF 2V Kit questions

The website is old and outdated so i also have a lot of questions for those who have the kits and for "Chad" i think is his name on here with ON3.


FOR THOSE THAT HAVE THE KIT
For those that actually have or know someone with the kit has anyone actually seen with their own eyes the piping cracking or breaking like i have read about?

How fast does the new FF kit spool?

How many miles are on your FF kit for the ones that have it?

I know the kits leak bad but a simple gasket in between the pipes and better V-clamps fix these issues correct? Could you post links to the gasket and clamps....

So the piping from turbo to intercooler is 2.5" correct? Seems small, what kind of power can that support?

For those that own, installed, or PERSONALLY know someone with the kit how do you/they like it? (no i read this on the internet or my brothers, wife's, friend said this... stuff)

What kind of power did you make?

QUESTIONS FOR ON3

How is the turbo oil feed line routed from and back to the motor and what kind of fittings/hose does it come with?

What kind of line/hose is the oil relocation kit made from/out of?

What size FF header pipe do you use?

Do you offer ceramic coated or high temp coatings on your pipes? (how much more)

How much power can your 3 core intercooler support and do you make a 4 core?

The 38mm wastegate, how much power can it support?

Do you sell injectors as well?

How much air/power can your MAF unit support?

What are your Turbo housing sizes, Turbo brands you offer, and what all upgrades do you offer?

How many miles are on you shop car with the kit on it now?

I started to call and talk to ON3 personally or PM them but i just could not find a lot of these questions on the internet even though i have searched and searched and i know i am not the only one with these questions and i thought by posting this here it would help others like me with questions about your kit and save you from a lot of PM's, E-mail's, and phone calls. Again your website is really outdated and i could not find much info on what all you sell and options available with your kit. You can PM me any info or pricing you do not want to post, just thought this would help a lot of the 2V guys out with questions/concerns about your kit. If you want me to call or E_Mail you personally i will.

2002mustanggt, how many miles were on your 1st gen kit when you sold it and were the hotside pipes still in good functional condition? As in there were no cracks, pits, holes, or breaks were there?
 

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Discussion Starter #3 (Edited)
THE REASON FOR SO MANY QUESTIONS

I am currently gathering parts for my Turbo build. I have some stuff already, waiting on a few things, and need to order a few things too but here is what it will consist of....

MMR 900 or 1000 4.75L Longblock
Trickflow heads
MMR stage 3 or MHS Stage 2 cams
Edelbrock lower intake, elbow, and rails
90mm Accufab throttlebody W/spacer
Full sumped tank, return style fuel system W/ a single 625lph pump
Turbo kit (up in the air with this part on what size, brand, kit to get)
Looking at 20-25psi
Will keep my Nitrous system on top and spray about a 100-150 shot to help with boost loss in between shifts. Car will stay 5-spd

I do drag race the car often and looking at making 800WHP via Turbo alone and closer to 900WHP on spray.

I have about everything figured out as far as motor goes but i need a little help with what size turbo, waste gate to get, AR size, and Turbo size. I am thinking a .96 AR with a 76MM billit wheel turbo. I want something that will spool fairly quickly and not be a turd down low till it gets to 4,500rpms or so........ I was thinking about a MP to save money over say a Comp turbo but didn't they change companies or just names?

Any suggestions? I know this is a lot to answer but i am new and willing to learn about Turbo's, Thanks in advance David.
 

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My kit was a 4V...but they are the same, except the port shapes.

The website is old and outdated so i also have a lot of questions for those who have the kits and for "Chad" i think is his name on here with ON3.


FOR THOSE THAT HAVE THE KIT
For those that actually have or know someone with the kit has anyone actually seen with their own eyes the piping cracking or breaking like i have read about? I have owned the kit, installed a few, and know of quite a few locally. I have seen zero cracks on the piping.

How fast does the new FF kit spool?
My kit hit full boost at 3600 rpm on the dyno, with a manual trans. On the street, it was at 3200 rpm.

With the auto/converter....it was instant.


How many miles are on your FF kit for the ones that have it?
I put 2,000 or so on it, and the new car it is on has been 2,000 or so.

The highest I know of locally, for fact....is 12,000~ miles.


I know the kits leak bad but a simple gasket in between the pipes and better V-clamps fix these issues correct? Could you post links to the gasket and clamps....
Ebay search "OBX 2.5 Gasket" They are a round gasket with 3 tabs/holes.You simply trim them with scissors.

I used the On3 clamps, and they worked fine. I only developed a small leak on the pass side header v-band connection, before I put the gaskets in.

So the piping from turbo to intercooler is 2.5" correct? Seems small, what kind of power can that support?
I think mine was 3"

For those that own, installed, or PERSONALLY know someone with the kit how do you/they like it? (no i read this on the internet or my brothers, wife's, friend said this... stuff)
I liked it for the money. The new owner of my kit loves it, and everyone I know locally is satisfied with them. My old kit is going 10.20's on a full weight '03 Cobra Vert with an auto...13-14psi.....70mm / .68

What kind of power did you make?
Mine made 460rwhp on 8psi....with 10 degrees timing, 11.1 AF.

It made 497 rwhp on the same boost (8psi) and 12 degrees, at 11.5 AF.....but was running out of pump, quickly....so we detuned it.
 

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The piping on my FF from turbo to intercooler is 2.5 inch, then 3.0 from intercooler to engine.

Also,

I am using the obx 2.5 inch gaskets and some Racepartsolution clamps. finally have no leaks on the exhaust side pre turbo.
 

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Modularspeed answered just about all the questions I would have answered. Mine spooled a little faster when I had a 5spd. And also spools instant with the auto. Mine may have spooled sooner because of the cams I have. I also had a little leak at the v-band connections. You can get good gaskets and clamps from racepartsolutions.com.
I have about 2k on my car with the turbo. I went from stage 2 cams and a vortech s-trim converted to blowthrough and making about 9-10lbs with stage 2 hi-tech cams.
Now with the mild cams and less boost (7lbs) the car feels way faster. It made 460 with the blower. I have not had it back to the dyno with the turbo. Once you feel turbo power you wont want anything else. Also be sure you read and reread modularspeeds build thread. It helped me alot!
 

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Discussion Starter #12
I just don't know if I could make the power I want with that small of pipes.....
 

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Discussion Starter #17
Air volume is affected by pressure and size/volume of pipe , as in a 1" pipe flowing air @ 10psi will flow a lot more air than a 1/4" pipe flowing at 10psi.

I really want a quiet exhaust as I do cruize the car around a lot, I tought about just upgrading the 2.5" pipe to 3" to match the pipe from intercooler to engine and get a 3.5" down pipe to a Y pipe with an electric cut out then the regular 3" the rest of the way. That way it will not be stupid loud dd but I can open it @ the track for more power. That should work right?
 

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I hear ya..
but were measuring pressure at the intake manifold, not that pipe. I would love to a see a side by side comparison ......probably no difference
 

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Discussion Starter #19
I hear ya..
but were measuring pressure at the intake manifold, not that pipe. I would love to a see a side by side comparison ......probably no difference
I wish i knew as well, common thinking you would think that it would need to be bigger. Air coming out of the turbo is still warmer than the air after the intercooler, cooler air is more dense so you would think the pipe coming from the turbo to intercooler would be bigger than after the intercooler....... Unless im not understanding something here:confused:
 

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Im completely happy with my on3 kit. They got a bad name with the old kit, but the new forward facing kit is worlds better!

Sent from my DROID BIONIC using Tapatalk 2
http://forums.corral.net/forums/turbochargers/1360481-ball-socket-pre-turbo.html

I have a..... well I have a turbo kit that has warped v-band flanges because the Chinese do not know how to weld them LOL. Of course the company has NEVER seen them leak and everything they sell fits perfect on everyones car but mine LOL!!
I am tired of fighting with them and was wondering if a ball and socket style flange would work pre-turbo? This is my first turbo car and from what I read there is more than normal exhaust pressure pre turbo. I have never had a ball and socket flange leak before unless it was really rusty or just not tight.
Thanks in advance!!
This is how happy you are huh?
 
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