Need advice

Post by **s14inwashington** » Sat Mar 01, 2003 1:48 am

hey everyone I have a few questions. I am currently an ASE certified mechanic at a local speedshop, and i recently sold my civic for a 96 240 SE. At my shop, we have done 2 turbo'd KA's and 1 DET swap into S14's. I read over the forums and im not sure what would be the best setup. I plan to run an entirely stock engine with a turbocharger that utilizes an internal wastegate. I only want to run maybe 7 to 10 lb at the most. So far, i have collected an apexi gt spec intercooler, misc. mandrel bent charge piping, oem injectors off of a S15 DET, Greddy E manage and Profec E-01, and walbro 255lph fuel pump. I would like any advice as to what else to add to the engine to make sure i dont cause nay type of failure. I also have SPEC clutch . I would also like to know where i could acquire a turbo manifold, regardless of what type of turbo it is for, other than revhard. bad luck with revhard cracking. any input would be appreciated. keep in mind- i dont want to take this motor apart.. i have done two and timing chains are a *****....If i pop this motor ill swap in a newbie, all stock again. oh yeah... should the oem MAF go before the inlet on the compressor side of the turbo or in the charge piping?

Post by **S14Zilvia** » Sat Mar 01, 2003 1:48 am

ETD is making a manifold for the ka that should be available by mid march. Looks pretty nice. http://www.etdracing.com

For some reason I'm thinking the stock maf should come before the turbo.

By the way, how will you be doing your i/c piping?

Post by **s14inwashington** » Sat Mar 01, 2003 1:48 am

i have a TON of pre bent mandrel piping, this is how we did the two other turbo KA's. Does this setup sound ok ? we tried putting the MAF before the turbo and whenever we gave it gas it dies for some reason. then we put it in the charge piping and it was fine, but with an MIL. ANyone else have turbo KA?

Post by **S14Zilvia** » Sat Mar 01, 2003 1:48 am

Where do you get all your mandrel piping? I need some.

Do you just weld it together?

Post by **ziggy682** » Sat Mar 01, 2003 1:48 am

I'm in the process of turbocharging my KA. I'm putting the MAF in the charge piping so I can run an open atosphere BOV before the MAF in the hot piping. You can run the MAF before or after the turbo and it will work. If the MAF was before the turbo in the other cars and it kept dying when you gave it gas, that sounds like you had a leak in the piping somewhere, and when you opened up the throttle it ran rich and died.

Post by **ziggy682** » Sat Mar 01, 2003 1:48 am

S14Zilvia wrote:Where do you get all your mandrel piping? I need some.

Do you just weld it together?

http://www.jcwhitney.com

Post by **S14Zilvia** » Sat Mar 01, 2003 1:48 am

JCWhitney has got a lot of different diameters, but my inlet/outlet are 2.5", and I'm only seeing that ID in the swaged 45 degree bends.

Anybody know of anywhere else to find mandrel bent piping?

Post by **ziggy682** » Sat Mar 01, 2003 1:48 am

S14Zilvia wrote:JCWhitney has got a lot of different diameters, but my inlet/outlet are 2.5", and I'm only seeing that ID in the swaged 45 degree bends.

Anybody know of anywhere else to find mandrel bent piping?

Dude, JCWhitney has lots of different piping in 2.5". Here's a 2.5" U-bend.

http://www.jcwhitney.com/item....=jcw2

Post by **s14inwashington** » Sat Mar 01, 2003 1:48 am

I get my piping from a scrap bin at a local exhaust shop. THey dont mind that we come and take all their scraps......if you ask me they're not scraps at all! i weld them together when possible, otherwise i use silicon connectors. some are recommending to use the KA24DE stock MAF, others say use the 300ZX MAF. any input? if using the z32, what year?

Post by **matt0941** » Sat Mar 01, 2003 1:48 am

Probably 92(93?)-96, whatever last gen was. If you are going to be going over anything about 240 horse, you should replace your stock MAF. 300zx's MAF can handle much more.

Post by **S14Zilvia** » Sat Mar 01, 2003 1:48 am

ziggy682 wrote:Dude, JCWhitney has lots of different piping in 2.5". Here's a 2.5" U-bend.

http://www.jcwhitney.com/item....=jcw2

The U-bend is all I saw.

Do they do any of those bends in 2.5" then?

Post by **S14Zilvia** » Sat Mar 01, 2003 1:48 am

matt0941 wrote:Probably 92(93?)-96, whatever last gen was. If you are going to be going over anything about 240 horse, you should replace your stock MAF. 300zx's MAF can handle much more.

90-96 was the z32 in the usa.

Has someone taken the stock maf to the limit and found that it was 240? I didn't know it was that low. Is that fwhp or rwhp btw?

Post by **matt0941** » Sat Mar 01, 2003 1:48 am

I am not positive Zilvia, i would put my bets on rwhp though. And yea you were right about the 300zx's I always get them confused with others like RX-7 and Supra.

EDIT: http://cgi.ebay.com/ebaymotors...10368

Post by **C-Kwik** » Sat Mar 01, 2003 1:48 am

s14inwashington wrote:hey everyone I have a few questions. I am currently an ASE certified mechanic at a local speedshop, and i recently sold my civic for a 96 240 SE. At my shop, we have done 2 turbo'd KA's and 1 DET swap into S14's. I read over the forums and im not sure what would be the best setup. I plan to run an entirely stock engine with a turbocharger that utilizes an internal wastegate. I only want to run maybe 7 to 10 lb at the most. So far, i have collected an apexi gt spec intercooler, misc. mandrel bent charge piping, oem injectors off of a S15 DET, Greddy E manage and Profec E-01, and walbro 255lph fuel pump. I would like any advice as to what else to add to the engine to make sure i dont cause nay type of failure. I also have SPEC clutch . I would also like to know where i could acquire a turbo manifold, regardless of what type of turbo it is for, other than revhard. bad luck with revhard cracking. any input would be appreciated. keep in mind- i dont want to take this motor apart.. i have done two and timing chains are a *****....If i pop this motor ill swap in a newbie, all stock again. oh yeah... should the oem MAF go before the inlet on the compressor side of the turbo or in the charge piping?

Revhards can be quite reliable if you prep them correctly. Just separate the flange so that there is one flange per port and drill the holes for the studs from the head to allow for expansion and cracking should not be an issue.

As far as the MAF, it should work in either position as long as flow is smooth in and out of it. The Nissan MAF's tend to be sensitive to turbulence. You don't want it too close to the compressor. And if you are venting BOV back into the intake, make sure it is far enough away from the MAF and angled with the intake stream to avoid disrupting flow too much.

Post by **oi138** » Sat Mar 01, 2003 1:48 am

S14Zilvia wrote:90-96 was the z32 in the usa.

Has someone taken the stock maf to the limit and found that it was 240? I didn't know it was that low. Is that fwhp or rwhp btw?

ummm. i hope that's a joke.

James Poe

Post by **S14Zilvia** » Sat Mar 01, 2003 1:48 am

oi138 wrote:ummm. i hope that's a joke.

James Poe

ummm. nope.

fwhp (if that's what you're talking about) does apply to rear drive cars. think about it, what else could that f stand for? (I'll give you a hint: not front)

Post by **oi138** » Sat Mar 01, 2003 1:48 am

ah. yes i get it now. sorry never referenced flywheel hp like that.

James Poe

Post by **s14inwashington** » Sat Mar 01, 2003 1:48 am

ok so i got the revhard manifold.... im going to put it all together. BOV- right off the compressor housing charge pipe or near the TB inlet? with the piping i have made, the MAF will either fit right before the bend up to the throttle body, or right before the turbo inlet. i shouldnt have any problems running the SARD R2D2 blow off valve open atmosphere (or any BOV for that matter) if the MAF is in the charge piping, but would i if it were to be before the turbocharger?

Post by **silviaNE** » Sat Mar 01, 2003 1:48 am

you should mount your BOV within 6 inchs of your throttle body.

Post by **silviaNE** » Sat Mar 01, 2003 1:48 am

you should mount your BOV within 6 inchs of your throttle body.

Post by **gyfer** » Sat Mar 01, 2003 1:48 am

add: your BOV should stay away from MAF to avoid disturb on turbulance/flow.

Post by **ziggy682** » Sat Mar 01, 2003 1:48 am

Correct, if your MAF is in the charge piping, you can run your BOV open to the atmosphere and everything will be okay. That is, as long as the BOV is before the MAF. Supposedly you need 6" of straight pipe before and after the MAF to make sure you get smooth air flow, and it meters correctly. I am putting the BOV right after the compressor[edit], where it should be most responsive.

Post by **s14inwashington** » Sat Mar 01, 2003 1:48 am

so wait you are running multiple BOV's then ziggy? jk i know that was a typo... you say the BOV needs to be before the MAF... meaning on the TB side of the MAF or on the compressor side of the MAF (inlet)? then you said youre putting the bov right after the bov, and i dont nkow whith of those typos was supposed to be MAF hehe

Post by **ziggy682** » Sat Mar 01, 2003 1:48 am

Woops, I edited my previous post. I meant to say I am putting the BOV right after the compressor.

Need advice

Need advice

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