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3.0L Header Dyno #s ?

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Old 03-16-2004, 09:21 AM
  #41  
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you'll have to wait though because I don't want to put on the headers, take them off for the TS ecu, and then put them back on.
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Old 03-16-2004, 09:24 AM
  #42  
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WHY...why...why. Damn this timing is sh!tty. Oh well.

Looks like next month could be a NEW era for VQ30DE-K owners.

Originally Posted by Larrio
you'll have to wait though because I don't want to put on the headers, take them off for the TS ecu, and then put them back on.
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Old 03-16-2004, 09:24 AM
  #43  
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Originally Posted by Larrio
SWA customer service to maxima owners has come through once again. I will be sending in the cattman y-pipe in the next couple of days with no restocking charge except shipping fees in exchange for the HS header plus price difference.

I believe the 3.5 is wider than the 3.0? Visually it looks that way, of course I could be wrong. I'm worried that the 2nd manifold or the part that replaces the y-pipe won't bolt up right or have problems clearing mechanical components.
I hope it works. If so, I'll try it on a 4th gen.
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Old 03-16-2004, 09:32 AM
  #44  
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Originally Posted by IceY2K1
Looks like next month could be a NEW era for VQ30DE-K owners.
Alex....can u expand on that? Meaning, are u thinking the TS ECU will likewise be available next month as well?? If yes, that makes all of this a hard call....if they are both available close to simultaneously, I think headers first would be the right approach, yes?

All I can say is Zow-weeee!!
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Old 03-16-2004, 10:10 AM
  #45  
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Originally Posted by IceY2K1
WHY...why...why. Damn this timing is sh!tty. Oh well.

Looks like next month could be a NEW era for VQ30DE-K owners.
yea, tell me about it. But its not that bad... TS first then the headers. I'll try talking to danny when I head in (hopefully soon) and see if he wants to install the headers for me so we can run it on the dyno also.
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Old 03-16-2004, 10:35 AM
  #46  
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Originally Posted by Larrio
yea, tell me about it. But its not that bad... TS first then the headers. I'll try talking to danny when I head in (hopefully soon) and see if he wants to install the headers for me so we can run it on the dyno also.

Larrio..given what I've read on the other mother of all threads (the TS ECU thread) I would think that the ECU could/should be optimized for the headers and not vice-versa & that would imply the headers should go on first, no?

Alex, can u chime in here??
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Old 03-16-2004, 11:20 AM
  #47  
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Originally Posted by IceY2K1
WHY...why...why. Damn this timing is sh!tty. Oh well.

Looks like next month could be a NEW era for VQ30DE-K owners.
*getting cash out of the pocket* so we're ready homey

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Old 03-16-2004, 11:29 AM
  #48  
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Originally Posted by Galo
Larrio..given what I've read on the other mother of all threads (the TS ECU thread) I would think that the ECU could/should be optimized for the headers and not vice-versa & that would imply the headers should go on first, no?

Alex, can u chime in here??
I think that this makes sense too....but hey...what do I know?

Man, I am going to be spending a fortune on this car this year. No warranty = lots of goodies!!!
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Old 03-16-2004, 11:32 AM
  #49  
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Originally Posted by Galo
Larrio..given what I've read on the other mother of all threads (the TS ECU thread) I would think that the ECU could/should be optimized for the headers and not vice-versa & that would imply the headers should go on first, no?

Alex, can u chime in here??
I didn't mean it like that. I meant that I have to stay stock until I get the ECU done since i'm prototyping, then i'll put on the headers

EDIT: oh and btw, I just sent the cattman y-pipe back to SWA already.
hehehhehehe
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Old 03-16-2004, 11:33 AM
  #50  
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TS will most likely custom tune him a map for his headers, which will be AVAILABLE to all of us, AFTER a STOCK program is made. That's great news for all of us planning on headers.

Headers will just lean out the AFR, so they'll have to add some more fuel. We'd all be best off getting the best matching program to our current/future mods and then using an Apexi S-AFC or similar to fine tune on a dyno.

Originally Posted by Galo
Larrio..given what I've read on the other mother of all threads (the TS ECU thread) I would think that the ECU could/should be optimized for the headers and not vice-versa & that would imply the headers should go on first, no?

Alex, can u chime in here??
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Old 03-16-2004, 11:35 AM
  #51  
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You guys need to worry about HELPING FIND us more test-cars and NOT about how the details will work out.

Danny's got all that covered, we just need to make sure we have 100% rock solid guinea-pigs ready for Dannys' earliest convienence.
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Old 03-16-2004, 11:54 AM
  #52  
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Originally Posted by IceY2K1
You guys need to worry about HELPING FIND us more test-cars and NOT about how the details will work out.

Danny's got all that covered, we just need to make sure we have 100% rock solid guinea-pigs ready for Dannys' earliest convienence.
Test cars fer wut?
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Old 03-16-2004, 12:01 PM
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Originally Posted by IceY2K1
You guys need to worry about HELPING FIND us more test-cars and NOT about how the details will work out.

Danny's got all that covered, we just need to make sure we have 100% rock solid guinea-pigs ready for Dannys' earliest convienence.
you guys still need more people? I'm 2000 GXE 5spd with only a frankencar catback.


wrong thread again?
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Old 03-16-2004, 12:18 PM
  #54  
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Yeah, add your name to the list:
http://forums.maxima.org/showthread....7&page=1&pp=30

Along with what you're willing to allow done to your car and when/how-long you can help.
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Old 03-16-2004, 12:55 PM
  #55  
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Originally Posted by Colonel
Test cars fer wut?
the technosquare ecu test pigs
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Old 03-16-2004, 01:05 PM
  #56  
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Originally Posted by Larrio
the technosquare ecu test pigs
Ah...cant help ya there...I am in Ohio....not Cali.
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Old 03-16-2004, 01:10 PM
  #57  
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Shud up and put the brakes on already....I want numbers~!

Originally Posted by Colonel
Ah...cant help ya there...I am in Ohio....not Cali.
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Old 03-16-2004, 01:18 PM
  #58  
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Originally Posted by IceY2K1
Shud up and put the brakes on already....I want numbers~!
Test numbers this weekend, business trip week after...install the following weekend. So joo jus gonna have to wait!

BTW, it shipped today
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Old 03-16-2004, 01:25 PM
  #59  
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Make sure and get some >60mph stops...as high as you're willing to go that is.

I'd say 80mph should be good, lots of tests use 70mph.
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Old 03-16-2004, 04:06 PM
  #60  
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I'll buy these next month if no one does the test by then... my car is far from stock, I have a plasma cutter and a MIG,TIG for my convinience. I just hope all the bolts come apart EZ, almost 100K miles on my 01. I might be able to send a spare 01 Cali GXE 5spd ECU to TS for a test mule.
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Old 03-16-2004, 04:21 PM
  #61  
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my hotshot header is being shipped out tomorrow morning. Maybe I can get some local members to take a look at it when it gets here.
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Old 03-16-2004, 04:33 PM
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I wonder if [edit]STEVE [/edit] can get a picture of the HotShot headers next to Cattmans NZ headers.

That might help visualize.

Originally Posted by Larrio
my hotshot header is being shipped out tomorrow morning. Maybe I can get some local members to take a look at it when it gets here.
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Old 03-16-2004, 11:43 PM
  #63  
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here is a comparison picture that I put together:



looks alot different to me, but it could be from the different angles. The HS is truly a longer tube header design. I suspect potential problems getting the 2nd parts to bolt up to the 1st manifolds
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Old 03-17-2004, 08:52 AM
  #64  
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Those look VERY similar to me.

I don't see the problem. Can you circle it?

Originally Posted by Larrio
here is a comparison picture that I put together:



looks alot different to me, but it could be from the different angles. The HS is truly a longer tube header design. I suspect potential problems getting the 2nd parts to bolt up to the 1st manifolds
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Old 03-17-2004, 08:57 AM
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If you're talking about the loop on the rear bank, I doubt that's a concern, but I'll look tonight and see.

If it is, I don't see why that couldn't be fixed by going with a Cattman y-pipe style rear, ie lose the loop/equal length and just merge as short as possible. Definitely wouldn't be too much work for the welding inclined.

If you had to pay for welding it, you might as well go with the Cattman version.
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Old 03-17-2004, 09:16 AM
  #66  
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i just don't want that 2nd equal length loop to hit anything. Hard to tell what could happen at this point. otherwise the manifolds look the same shape

also, why does the cattman header look so much shorter in length?
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Old 03-17-2004, 09:23 AM
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I doubt that will be an issue. The external dimensions of the VQ35 and VQ30 are identical. The only issue is if something else gets in the way.

Appears the Cattman NZ headers collect sooner.
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Old 03-17-2004, 09:34 AM
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ice, how hard is this install? Do you have any ideas what type of tools are needed? I was thinking that if I have the right tools and no need to remove the radiator, I will do the test fitment by myself so that I can return it back to stock later
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Old 03-17-2004, 09:50 AM
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From what SR20DEN has said, not easy. REAR bank is a bish.

You aren't going to install/uninstall/reinstall TRUST ME.

Originally Posted by Larrio
ice, how hard is this install? Do you have any ideas what type of tools are needed? I was thinking that if I have the right tools and no need to remove the radiator, I will do the test fitment by myself so that I can return it back to stock later
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Old 03-17-2004, 10:02 AM
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Originally Posted by IceY2K1


From what SR20DEN has said, not easy. REAR bank is a bish.

You aren't going to install/uninstall/reinstall TRUST ME.
heh, I figured as much. Just trying to be optimistic since they got sent out this morning already. Steve said he's going to take some pictures of the HS headers for me today.
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Old 03-17-2004, 10:20 AM
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[QUOTE=IceY2K1]From what SR20DEN has said, not easy. REAR bank is a bish.

QUOTE]

FYI, the Nissan shop manual says in the range of 2.1 labor hours for the front bank and like 2.6 for the rear bank....four hours for a good, experienced tech with the right tools...this surely 'aint' trivial by any means...

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Old 03-17-2004, 03:29 PM
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Pretty EZ job if U ask me, loosen the cross member, drop the OE or aftermarket Ypipe, remove the rear motor mount WITH the cross member attached. Then Remove the motor mount bracket that bolts up to the rear of the motor. For the front manifold I pull the radiator out- pretty ez job ( and I'ma be due for a coolant flush soon anyways ) just remove the hoses from the motor locations, unplug the fans from their connectors, remove the overflow hose that goes off the radiator neck nipple and then the 2 10mm bolts that hold down the brackets that hold the radiator down. I will write up my own procedure on how to install headers when mine arrive. I've done cats on a VQ30DE-K on the front so I know how the manifold comes off the front. I inspected CLOSELY- rear manifold and its fairly EZ job. I wanna say U can have it done in like 2-3 hours tops. **** pulling the motor out takes a whoppn hour not even, might as well do that if it takes ya dat long

FYI- I'm a mechanic, and I do things like these on daily basis- Maxima tranny takes 15 min to remove on my ride. Don't belive me, look where my sig line pic is taken
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Old 03-17-2004, 03:36 PM
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I didn't even think about the EGR valve that is not on the HotShot headers... That could be a problem. Larry I'll be sending you your tracking # via pm shortly.
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Old 03-17-2004, 03:40 PM
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Is it on Cattmans?


Originally Posted by Y2KSESteve
I didn't even think about the EGR valve that is not on the HotShot headers... That could be a problem. Larry I'll be sending you your tracking # via pm shortly.
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Old 03-17-2004, 03:42 PM
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Originally Posted by IceY2K1
Is it on Cattmans?
Yea it is....
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Old 03-17-2004, 03:47 PM
  #76  
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is that the little tube sticking out on the top of the manifold tube?

blackbird- looks like you'll be pioneering before me. Let us know how it goes
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Old 03-17-2004, 04:05 PM
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2001s have no EGR, don't worry bout it
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Old 03-17-2004, 04:09 PM
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What some of us SR20 guys do is have a muffler shop extend the EGR pipe way down, and then have it welded to the exhaust somewhere- on turbo cars its in the downpipe- for people who wanna retain EGR valves. Most Sentras are not streetable once they are over 250WHP (ez to do) so most of us don't worry bout it.
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Old 03-17-2004, 07:42 PM
  #79  
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have someone bring a TIG/MIG welder and cutter over to my house, i've got the air tools. we'll figure that bish out.
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Old 03-17-2004, 08:26 PM
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VQ30DE-K and VQ35DE have no EGR, so there should be no welding required. As for the downstream 02 sensors, I can use a simple resistor that DSM, WRX guys use to fool the ECU into thinking the cats work fine. In IL they only do the scanner part of the Emission test on all 96 and up cars. As long as all readiness tests have completed, and there are no DTCs stored the car will fly through the test.
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