Jakee's 4.0 SOHC Build up discussion and motivation thread

[spindlecone]

Wrapping exhaust is not usually recommended for street vehicles because it can trap moisture in against the pipes when they cool down, accelerating the corrosion/rust process. Most header manufacturers void their warranties for that reason if you wrap their products.

unless they are SS steel

 

[JDraper]

unless they are SS steel

True, but even a 400 series (ferromagnetic) SST can corrode..400 series stainless is corrosion resistant, not corrosion proof. 300 series (non-ferrous) would be the way to go (303, 304 or 316L) but you'd probably have to get custom built ones. Making 'em out of 304 would be a ROYAL PITA!!:

 

[Jakee]

Looks can be deceiving. That's the STOCK Y-pipe. Yes, that is a magnaflow Y-Pipe welded to the stock Y-pipe.

Cats? What cats.

As far the rusting. I will bet anyone of you guys $100 bucks this thing wont rust in the next year. Anyone?

I would NEVER wrap headers with this wrap but the exhaust pipe is a different story.

 

[Jakee]

Thays just your OEM Y-Pipe thats been wrapped, will do nada, except maybe heat up your cats and take them out, not a good idea jakee, IMO

Like I said, there are no cats, only the outer's. This will get me the same thing you paid 200+ bucks. Trust me spindle.

 

[Jakee]

Wrapping exhaust is not usually recommended for street vehicles because it can trap moisture in against the pipes when they cool down, accelerating the corrosion/rust process. Most header manufacturers void their warranties for that reason if you wrap their products.

I've read the articles about why wrapping your headers is not good. However, rusting problem? Its the metal being heated to a temp that the headers material can't withstand. If any moisture is created (I highly disagree) it will be burned away in the first minute after turning the engine on. Moisture and heat don't mix. I deal with metals EVERYDAY. Part of my job as a Manufacturing Engineer.

What I've done here was cut the stock Y-pipe in to 3 pcs, gutted the cats, and welded everything back up. Painted with High Heat ceramic, let dry for a day, wrapped pipe and painted again.

What did I gain from all this? An exhaust that I feel is quality looking and functions pretty good. I don't see any problems with it as I'm moving on to the next step.

 

[au01st]

Hmm, if it actually does quiet it down, I may have to give it a try. Mine is insanely loud inside the cab. I have a few hundred feet of exhaust wrap sitting in my parts room, so maybe it'll be a weekend project.

Oh, Jakee, I'm also running an e-fan now. I did the Taurus fan mod that lots of the Mustang guys do, and the total cost was around $120. 2 weeks now and no problems whatsoever. Here's the link to my write up on the e-fan. http://www.mysporttrac.com/MySportTrac/projects/EFanInstall.pdf

Count down, 2 weeks til planned nitrous dyno.

 

[Jakee]

Hmm, if it actually does quiet it down, I may have to give it a try. Mine is insanely loud inside the cab. I have a few hundred feet of exhaust wrap sitting in my parts room, so maybe it'll be a weekend project.

Oh, Jakee, I'm also running an e-fan now. I did the Taurus fan mod that lots of the Mustang guys do, and the total cost was around $120. 2 weeks now and no problems whatsoever. Here's the link to my write up on the e-fan. http://www.mysporttrac.com/MySportTrac/projects/EFanInstall.pdf

Count down, 2 weeks til planned nitrous dyno.

Awesome! Thanks for the info. Can't wait to see what yours is going to do. Good luck!

 

[JDraper]

I've read the articles about why wrapping your headers is not good. However, rusting problem? Its the metal being heated to a temp that the headers material can't withstand. If any moisture is created (I highly disagree) it will be burned away in the first minute after turning the engine on. Moisture and heat don't mix. I deal with metals EVERYDAY. Part of my job as a Manufacturing Engineer.

I've spent the last 15 years as an Eddy Current ASNT Level III in NDT dealing with materials, material properties, fracture analysis, failure analysis, stress corrosion cracking..etc. I'm also an Aerospace Engineer and Physicist so I'm not just shooting from the lip. You're right, any moisture will be evaporated in the first minutes after the engine is started. It's moisture (condensation, water from rain, snow, etc.) that is held in against the pipes by the wrap for the 8 hours the truck sat BEFORE you started it that is the problem. Add in any salt content that might be in the water and you've got a nice recipie for corrosion.

Hopefully your ceramic paint job has absolutely no scratches down to bare metal, or that's where the corrosion will start first.

 

[aldive]

Jakee, whats the purpose in leaving the cat housings?

 

[spindlecone]

Jakee, whats the purpose in leaving the cat housings?

Because he did not want to spend 200+ bux for a real y-pipe

 

[Jakee]

I've spent the last 15 years as an Eddy Current ASNT Level III in NDT dealing with materials, material properties, fracture analysis, failure analysis, stress corrosion cracking..etc. I'm also an Aerospace Engineer and Physicist so I'm not just shooting from the lip. You're right, any moisture will be evaporated in the first minutes after the engine is started. It's moisture (condensation, water from rain, snow, etc.) that is held in against the pipes by the wrap for the 8 hours the truck sat BEFORE you started it that is the problem. Add in any salt content that might be in the water and you've got a nice recipie for corrosion.

Hopefully your ceramic paint job has absolutely no scratches down to bare metal, or that's where the corrosion will start first.

I live in Texas. No salt unless I drive into the ocean.

The Paint has no scratches cuss I painted (A few coats), let dry for 24 hours. Wrapped and painted again, let that dry for 24 hours. I appreciate the concern you have for me but I feel I'm okay. If it rusts, oh well. I bet it won't start rusting in the next year. And if it starts rusting 2 years from now I'll have around 5-10 years before I have to worry about it.

I too work with materials everyday all day and have been for the last 10 years. I know stainless will rust depending on what kind.

 

[Jakee]

Jakee, whats the purpose in leaving the cat housings?

When I originally started planning this I was going to add a High flow cat like I said. The problem was that there's not a lot of room after the magna flow Y-pipe and the last sensor. because of that I went ahead and threw it on there just to see if I would lose any low end torque like some suggested in here. huh? not!

I kept the housings because it must appear to be stock from the outside.

 

[Jakee]

Because he did not want to spend 200+ bux for a real y-pipe

More like 300+.

Like I said in the other thread spindle, I talked with the guy on the phone that makes these random tech pipes. I'm half tempted to call him right now and ask if he has EVER made one with 2-1/4" pipes like you said you have. Good way to find out if you're telling the truth?

Auto1st - What size is your random Y-Pipe?

 

[spindlecone]

More like 300+.

Like I said in the other thread spindle, I talked with the guy on the phone that makes these random tech pipes. I'm half tempted to call him right now and ask if he has EVER made one with 2-1/4" pipes like you said you have. Good way to find out if you're telling the truth?

Auto1st - What size is your random Y-Pipe?

Jakee your a real Hoot
$280 shipped from underdog performance.

 

[aldive]

I kept the housings because it must appear to be stock from the outside.

Just curious, but why?

 

[Jakee]

Jakee your a real Hoot
$280 shipped from underdog performance.

Look who's talking spindle. It's your goal to piss me off.

 

[Jakee]

Just curious, but why?

Well, it's simple. This is a street vehicle. I'll keep it at that.

 

[spindlecone]

Look who's talking spindle. It's your goal to piss me off.

and obviously I have, that is not my intent.
jakees buildup has not produced any numbers, nor any usefull mods.
you been talkin for months, about your buildup, your getting ripped off by some CC company, going to get turboed.
Yet overall, nothing has really happend with the buildup.
How much longer do you intend to drag jakees buildup out?
You drive a 2.5 ton brick, you will never get into the 14s, you will never see 210 RWHP N/A, produce the numbers, and the results of how you reached said acheivement,if you ever do. deeds jakee, not talk.
All are awaiting your end result, will this be in mos. or years?

 

[Turdle]

If it takes years-so be it
Look at my join date Spindle--I am no where near finished.
Pick on me now?

 

[aldive]

Spindlecone, a while back you said you were through with this thread, yet you continue to return return with more of your negativity; its not wanted .