Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

Turbo Prep?

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Old Sep 8, 2004 | 12:05 AM
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Turbo Prep?

I don't know if this has already been posted before...I didn't see any similar threads...but i was wondering if the turbo experts could tell me what kind of prep work should one do before turbo. I was thinking of doing suspension and brake work first, but is there anything i need to do to the engine to get it ready? i see ppl talk about bigger injectors and what not, should those other things be done before turbo or what? some good pointers on the best ways to prep for turbo would be nice, i basically wanna get the max ready for turbo so that way all i have to do is install the turbo kit. Thanks in advance.

Tony
Old Sep 8, 2004 | 04:18 AM
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I guess that all depends what's included in your turbo "kit." Give us a list of parts, and we can better make suggestions from there. For example, does your kit include anything fuel-related?
Old Sep 8, 2004 | 05:28 AM
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How about replacing those rubber gaskets on the intake manifold. The one between the upper and lower specifically. That is some seriously soft rubber. If you have an auto transmission, I would also suggest the Valve Body modification w/ a standalone tranny cooler. Lord knows our weak autos have enough trouble with 190hp let alone 250hp or so. These are just preventative measures to help save you some headaches in the future.
Old Sep 8, 2004 | 09:19 AM
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PFI Maxima Turbo Kits Include::
- Turbonetics TO4E Turbo w/ .81 A/R
- Tial 38MM Wastegate
- Spearco W.A.V.E Front-Mount Intercooler
- Vortec 12:1 FMU
- HKS SSQ Blow Off Valve (BOV)
- PFI Y-Pipe Type Manifold
- PFI 3" Downpipe
- K & N Filter
- Intake System
- PFI Aluminized Steel Charge Piping
- Install Instructions & Wiring Diagrams
- All Necessary Hardware & Fittings


The kit is the PFI Kit, and that is all it comes with. I will also be putting this in a manual tranny maxima.

Tony
Old Sep 8, 2004 | 11:38 AM
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Originally Posted by passEMonTHErite
How about replacing those rubber gaskets on the intake manifold. The one between the upper and lower specifically. That is some seriously soft rubber.
What exactly is wrong with that gasket?
Old Sep 8, 2004 | 02:13 PM
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any other suggestions or tips....did any of you vetern turbo maxima guys do any prep work?

Tony
Old Sep 8, 2004 | 05:51 PM
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I've heard only bad things about FMU's. And honestly, I doubt the stock injectors are up for the job of providing fuel for a turbo setup. I mean yes, they have been proven to be able to be used up to certain levels, but don't push it. For safety's-sake, I would reccomend an injector upgrade. Everything else on that kit seems pretty solid to me. The turbo itself seems a little strange though...a .81 a/r seems a little large to me, but I'm used to dealing with the KA24DE, not the VQ, so who knows...the real turbo guys will chime in here sometime.
Old Sep 8, 2004 | 08:03 PM
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Originally Posted by Jade95Maxima
I don't know if this has already been posted before...I didn't see any similar threads...
It has, but oh well.. I'll make a sticky about it in the coming days


Originally Posted by Jade95Maxima
but i was wondering if the turbo experts could tell me what kind of prep work should one do before turbo.
Prep work? Well your $$$ should be right. Your gonna spend lots of it

Originally Posted by Jade95Maxima
I was thinking of doing suspension and brake work first, but is there anything i need to do to the engine to get it ready?
Well, some will argue this and that. My opinon, do the performance stuff first. Then the brakes and suspension. It all costs $$$. How much can you spend? The engine, A compression test. A leakdown test would not hurt.

Originally Posted by Jade95Maxima
i see ppl talk about bigger injectors and what not, should those other things be done before turbo or what?
How much power do you want to make in the long run ? Once you answer that, then you can figure out lots of other things

Originally Posted by Jade95Maxima
some good pointers on the best ways to prep for turbo would be nice, i basically wanna get the max ready for turbo so that way all i have to do is install the turbo kit. Thanks in advance.

Tony
Again, what kind of power are you trying to run? WHat do you want ot do with your car? SCCA Solo racing? 1/4 mile?
Old Sep 8, 2004 | 08:04 PM
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Originally Posted by Tatanko
I've heard only bad things about FMU's. And honestly, I doubt the stock injectors are up for the job of providing fuel for a turbo setup. I mean yes, they have been proven to be able to be used up to certain levels, but don't push it. For safety's-sake, I would reccomend an injector upgrade. Everything else on that kit seems pretty solid to me. The turbo itself seems a little strange though...a .81 a/r seems a little large to me, but I'm used to dealing with the KA24DE, not the VQ, so who knows...the real turbo guys will chime in here sometime.

The FMU is not bad. It's a cheap way to get fuel into the motor. Not the best, but not the worst.

your correct, the .81 T4 turbine housing has shown to be a bit large for the 3.0L maxima
Old Sep 8, 2004 | 09:46 PM
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i would like to reach 300 to the wheels, and just crusing the streets and the occasional street race. but i would like to hit at least 300 to the wheels, i just want to do a basic setup without having to do a lot of internal work, just enough boost to mean business and then later down the road do a engine build up for more boost. so for right now if you could give me some suggestions on a basic yet aggressive setup that would be nice. if 300 hp reachable with a basic setup, then somewhere close to it.

Tony the Turbo Newbie
Old Sep 8, 2004 | 09:59 PM
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Originally Posted by Jade95Maxima
i would like to reach 300 to the wheels, and just crusing the streets and the occasional street race. but i would like to hit at least 300 to the wheels, i just want to do a basic setup without having to do a lot of internal work, just enough boost to mean business and then later down the road do a engine build up for more boost. so for right now if you could give me some suggestions on a basic yet aggressive setup that would be nice. if 300 hp reachable with a basic setup, then somewhere close to it.

Tony the Turbo Newbie

Basic setup using 370 cc injectors, SAFC, FMU, 300z maf, upgraded fuel pump, 3inch exhaust, and Intercooler @ 10psi should result in roughly 315-350 whp

Stock EVERYTHING except injectors and MAF

And for future refference, give me that little bird smiley again, and I'll never post a reply to any question you ask.

The way you used it, I can only see it as telling me to "***** off ".

No blood, No foul. Just asking you not to reply to me using it.
Old Sep 8, 2004 | 10:42 PM
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um i didn't mean any disrespect, i meant it as me waving like saying "hi" but i didn't know that lil thing flips people off at the end me sorry, my fault i didn't know.

-370cc injectors and the 300ZX MAF, can those be purchased at the dealership, or is there aftermarket ones, and if they can be purchased at the dealership, is there a certain part number or a certain year 300ZX i should get a MAF from??

-the SAFC i know where i can get my hands on one, any particular brand good, like Apexi?

-is the Vortec 12:1 FMU that comes with the kit not good? should it be upgraded?

-3"inch exhaust i knew i would have to run, and the intercooler comes with it.

-would 10psi be too much boost for that setup? and do the compression test and leakdown test.......

Thank you so much BAGS! sorry again for disrespecting you bro.

Tony
Old Sep 9, 2004 | 04:25 AM
  #13  
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Originally Posted by Bags
What exactly is wrong with that gasket?
As in, not meant for turbo applications. I didnt think that swapping out the stock gaskets for stronger ones in preparation for a turbocharger was a new concept.
Old Sep 9, 2004 | 06:02 AM
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Originally Posted by Jade95Maxima
um i didn't mean any disrespect, i meant it as me waving like saying "hi" but i didn't know that lil thing flips people off at the end me sorry, my fault i didn't know.

-370cc injectors and the 300ZX MAF, can those be purchased at the dealership, or is there aftermarket ones, and if they can be purchased at the dealership, is there a certain part number or a certain year 300ZX i should get a MAF from??
I had a feeling that new smiley would be getting people into trouble, heh heh.

Don't buy a new maf from the dealer unless you like being raped, or have money to burn. Used Z32 mafs are easy to come by on ebay, going from $50 to $150 or so. Both the NA and the TT Z32's used the same maf, so don't pay extra just because the seller claims the maf is off a Z32TT. The Infiniti J30 also used the same maf but with a different harness connector arrangement, and a lot of times you can get them for significantly less than a Z32 maf.

Here's one with a harness connector:
http://cgi.ebay.com/ebaymotors/ws/eB...920006989&rd=1
Old Sep 9, 2004 | 06:04 AM
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Originally Posted by Jade95Maxima
-370cc injectors and the 300ZX MAF, can those be purchased at the dealership, or is there aftermarket ones, and if they can be purchased at the dealership, is there a certain part number or a certain year 300ZX i should get a MAF from??

-the SAFC i know where i can get my hands on one, any particular brand good, like Apexi?

-is the Vortec 12:1 FMU that comes with the kit not good? should it be upgraded?

-would 10psi be too much boost for that setup? and do the compression test and leakdown test.......
370cc injectors can be bought online at places like SRSwap.com. They're actually from the SR20DET, so you know. But most places that sell them, sell them in bundles of 4 (meant for 4-cylinder engines), so you may need to find some place that sells them individually, otherwise you'll have to buy 2 packs of 4. You can also get the Z32 MAF from Courtesy Nissan.

That Vortec FMU is fine for your setup. 10 PSI should be ok...but other people should probably chime in with their opinion. However, if you're running the FMU, you don't need larger injectors. If you're getting the 370cc injectors and the S-AFC, you probably don't need to even bother with the FMU.
Old Sep 9, 2004 | 07:39 AM
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Originally Posted by Jade95Maxima

Tony the Turbo Newbie
Whats this flip off for.
Old Sep 9, 2004 | 09:20 AM
  #17  
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wow thanks for the replies guys.

ok so courtesynissan you say has the z32maf? just a general question, once i install that maf, will i get a cel or will it just plug in with no problems? are injectors all the same for all nissan cars? if so do i just search for nissan 370cc injectors?

Tony
Old Sep 9, 2004 | 09:20 AM
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also, what is the greddy emange i see ppl talking about?
Old Sep 9, 2004 | 09:40 AM
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maf, injectors emanage are discussed in detail in other posts. You need to go down to the bottom of the turbo/sc forum and select a greater time span and then start trolling the threads for useful info.

take notes and save useful threads, then ask questions based upon the info you read.

edit: oops, with the nice board layout, the date range is now at the top of the page.
Old Sep 9, 2004 | 11:50 AM
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Originally Posted by passEMonTHErite
As in, not meant for turbo applications. I didnt think that swapping out the stock gaskets for stronger ones in preparation for a turbocharger was a new concept.

I was unaware this one was failing
Old Sep 9, 2004 | 12:25 PM
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Originally Posted by passEMonTHErite
As in, not meant for turbo applications. I didnt think that swapping out the stock gaskets for stronger ones in preparation for a turbocharger was a new concept.
As long as the upper and lower manifold are bolted good and tight, that gasket isn't going to care if it sees an extra 10-15 psi. I'm not aware that many boosted folks have had problems in that regard.
Old Sep 9, 2004 | 04:59 PM
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Originally Posted by Jade95Maxima
ok so courtesynissan you say has the z32maf? just a general question, once i install that maf, will i get a cel or will it just plug in with no problems? are injectors all the same for all nissan cars? if so do i just search for nissan 370cc injectors?
Yes, Courtesy Nissan has it. However, they sell it new, and it's obviously pretty expensive. If you look on eBay, you'll find them very lightly used for under $100. Injectors are not all the same. Search for SR20DET 370cc injectors.
Old Sep 9, 2004 | 08:24 PM
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Originally Posted by Tatanko
Yes, Courtesy Nissan has it. However, they sell it new, and it's obviously pretty expensive. If you look on eBay, you'll find them very lightly used for under $100. Injectors are not all the same. Search for SR20DET 370cc injectors.


sweeeet, you guys rock

Tony
Old Sep 10, 2004 | 05:12 AM
  #24  
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Originally Posted by Stephen Max
As long as the upper and lower manifold are bolted good and tight, that gasket isn't going to care if it sees an extra 10-15 psi. I'm not aware that many boosted folks have had problems in that regard.

That sounds right. Maybe im thinking of engines running 20-30 psi.
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