The "I'm New Here And I have A Simple Question Thread" v2.0

General discussion forum about the 240sx, and a great place to introduce yourself to the board!
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PapaSmurf2k3
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The closer it is to the end of the header, the better it is for NVH purposes, but the shorter the flex pipe will last.

That being said, I'd put it between the header and the cat.


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allenms240
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Noxy wrote:Sorry to interrupt, but quick question even though I'm really not that new...

I was working on my car tonight and found an extra transmission crossmember in my trunk. I don't remember buying another one, and I don't know the letter code on it, which is crossmember "C". I know the one on my car is "B" and I've gotten one from a Skyline that said "A". Not really a pressing issue, but does anyone know what "C" is from?

Thanks,
Zane

A picture would help here.

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speedeast
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PapaSmurf2k3 wrote:The closer it is to the end of the header, the better it is for NVH purposes, but the shorter the flex pipe will last.

That being said, I'd put it between the header and the cat.
+1 You want to isolate as much weight as possible if it's a problem.

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PANDAemic
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My intercooler is mounted at an anlge for some reason and it's preventing my bumper from being mounted properly, what mounts should I buy to fix this and where should I mount it/move it?

I'm currently using the Godspeed intercooler for the CA18.

EDIT: It's a FMIC

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PapaSmurf2k3
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Can you just bend your mounts?

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PANDAemic
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I could but I'm afraid if I do, I could mess something up.

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PapaSmurf2k3
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Sack up and do it!

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PANDAemic
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Alright, any things I should be aware of before I start to help me not mess up?

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PapaSmurf2k3
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If you're that worried about it, take some pictures and post them here. Are all the brackets aluminum? Can you achieve what you need to achieve by adding spacers or anything non-permanent?

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240man91
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qustion? on a blow through do you have to tune it to be like that? cause mine is a darw through right now an i would rather have it on the cold side. o an i am running a n62 maf.

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speedeast
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Draw through technically is a cold side, but I'm guessing you'd rather have it after the intercooler. Whether draw through or blow through, it still meters the air all the same. No tuning necessary.

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PapaSmurf2k3
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^+1
Just make sure you meter everything you need to be metering, like the hose going to the idle air control valve. It needs to be AFTER the MAF, so between the MAF and throttle body. BOV needs to go (or at least really really SHOULD go) before the MAF.

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240man91
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ok well my bov is on the hot side/driver same side as turbo. an i wat to put the maf about a foot befor the tb. will that work an if the bov is befor the maf "coming from the drive side" ut bthe it would only be blowing off air that hasnt been metered. right? i might be wrong but i know right now when the bov gose off it blows metered air out cause it is a open atmisphere bov set up, so i would think that with the maf after it would lose less metered air. right?

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Right, if your BOV is on the hot side, and your MAF is on the cold side, you'll be blowing off unmetered air (good).

You generally want some straight sections (figure at least 4" from the actual hot wire) before and after the MAF. They tend to work better with laminar flow, not turbulent.

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240man91
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noob qustion. what do you mean hot wire?

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240man91
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do you mean put it on the stright part in betweem the ic an tb.

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240man91 wrote:noob qustion. what do you mean hot wire?
Nissan typically uses "hot wire mass airflow sensors". They meter the amount of air going into your engine (both volume and temp) by passing voltage through this wire to maintain a constant temp. The more air passing through it, the more voltage it needs to stay hot.
Your MAF is what, 4" long or so, right? In that 4", there is really only 1 part that is doing any metering (the hot wire itself), but it isn't necessarily in the center of the MAF housing. I was saying just make sure you have at least 4" of straight section before and after that wire

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240man91 wrote:do you mean put it on the stright part in betweem the ic an tb.
Yes

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240man91
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ok yeah i was just making sure i understude it right. haha. i think it will work better there being atmisphere bov.

kdelacy
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I am trying to buy my boyfriend new seats for his 1989 nissan 240sx "racecar". he has done a lot of work on the engine and some kind of cage thing (can you tell I don't know a lot?) so I want to get him nice seats. He doesn't actually race so the government certifications and specific weights I've read about seem less important? I just was hoping for some clarification about seat brands etc.

Thanks!

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speedeast
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Go on to eBay and do a search for racing seats, it'll bring back thousands of results. There are some sponsors of Nico that sell racing seats; just check the Classifieds section.

I personally like Recaro, Sparco, Ultra Shield, and Corbeau.

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speedeast
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240man91 wrote:ok yeah i was just making sure i understude it right. haha. i think it will work better there being atmisphere bov.
If the BOV is before the MAF, when it depressurizes the system, it's just relieving non-metered air and the system will have little to no negative impact.

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PapaSmurf2k3
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kdelacy wrote:I am trying to buy my boyfriend new seats for his 1989 nissan 240sx "racecar". he has done a lot of work on the engine and some kind of cage thing (can you tell I don't know a lot?) so I want to get him nice seats. He doesn't actually race so the government certifications and specific weights I've read about seem less important? I just was hoping for some clarification about seat brands etc.

Thanks!
A cheaper, sometimes more desirable alternative is to get seats from a later model 240sx (1995 and newer). These are often called "S14 Seats". If you do a search from that, it'll pop up. They bolt right in too, unlike most racing seats.

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240man91
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speedeast wrote:
240man91 wrote:ok yeah i was just making sure i understude it right. haha. i think it will work better there being atmisphere bov.
If the BOV is before the MAF, when it depressurizes the system, it's just relieving non-metered air and the system will have little to no negative impact.
sweet thats what i am looking for.

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PANDAemic
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When braking on my car my steering wheel starts to turn towards one side (I can't remember which), it doesn't shake but it just kind of turns a bit which causes my car to turn a bit as well. Usually happens only when I take hard brakes but sometimes on softer brakes too. I'm fine driving with this now but issues might come up in the future. So I was wondering what could cause this and how to fix it.

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PapaSmurf2k3
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You could have crappy fluid in there somewhere. I'd try bleeding all the brakes first, and go from there. Its cheap/easy.

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speedeast
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+1^

Also, if one of the calipers slide pins is seizing up, it might wear one pad more than the other and also have poor braking performance on that corner. You'd get brake turn from that.

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PapaSmurf2k3
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^I've never thought of that, but it makes complete sense. Adding it to my memory bank. Thanks dude.

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speedeast
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Found out the hard way. My car was 3 years old in NY and I had seized calipers from the harsh winters. It pulled when I braked and went away after a rebuild.

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PANDAemic
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Yea, I'm replacing my brakes soon so I might hold off on bleeding brakes. Could it also be the tie rods? I heard old or bad tie rods could cause this problem.


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