Cobra intake manafold swap

[OxmanWI]

Yes I did a search and couldn't find anything. Please post up threads if you have any.

With the Gen2, what kind of number increase would you see with a basic Cobra manafold swap over the Mark unit? Not only would it look cool under the hood, I was wondering what the benefit is. Is this also a better choice to go with a vortech SC later on?

Thank you,

Josh

 

[ponyboy88]

just getting into these cars (so my advise wont be much) but i would assume you'd see in the area of ten horsepower, since the cobra's were only rated at 305. I imagine a bigger increase would be seen when you add the blower.

 

[driller]

Actually, if you plan on a blower, it's not worth changing the intake to a Cobra intake unless you're going forged internals with a short runner intake and mega-rpms.

It would be a better N/A setup over the Gen2 intake for sure.

 

[Tiltedhalo]

If you want the truth with a stock GenII you wont see any increase, as a matter of fact you will lose a little. Don't get me wrong the GenII intake is a POS the Cobra is a much better design, but the design is intended for an 800LBS lighter car with a standard trans and 3:53 gears it will raise you power band and you will lose bottom end you will gain some top but it will be a marginal increase.
Put in a 3Grand stall converter and 4:10's and it will be worth something.

 

[DLF]

FWIW, 96-98 Cobra's came with 3.27's, and are only about 300-400 lbs. lighter. Race weight on my '98 Cobra is 3,650 lbs. and my '98 LSC is 3,980 lbs., both with me in the car.

 

[driller]

Put in a 3Grand stall converter and 4:10's and it will be worth something.

True dat. I know one of the 1st 13 second Gen2s had only a chip, converter, cat-back exhaust, 4.10s and a Cobra intake.

 

[kustomizingkid]

I don't think the cobra intake is a huge performance gain... but damn does it look better!!

 

[ajones51]

I put a cobra intake on my 97. I also have 2.5 true dual exhaust (mandrel bent), conical air filter, and had the setup tuned at alternative auto. I made 249 hp and 248 tq at the wheels. From what I've read, genII's usually do anywhere from 210-225 stock.

I did some gasket matching of the intake and also blended the area where the air is split into the valves. I also deleted EGR, but I don't think it made much difference on the dyno.

I never dynoed the car before the intake swap. I also have 4:10 gears which make up for any lost low end torque. I think the swap is worth doing for sure. I felt a big difference above 4000rpm especially.

 

[ajones51]

If you want the truth with a stock GenII you wont see any increase, as a matter of fact you will lose a little. Don't get me wrong the GenII intake is a POS the Cobra is a much better design, but the design is intended for an 800LBS lighter car with a standard trans and 3:53 gears it will raise you power band and you will lose bottom end you will gain some top but it will be a marginal increase.
Put in a 3Grand stall converter and 4:10's and it will be worth something.

How can you say this is "the truth"??? I've never seen a dyno sheet from anyone who swapped to a cobra intake showing they lost power. Maybe you should start out saying "If you want my opinion". Not cool to misguide people based on your hunches.

 

[driller]

I felt a big difference above 4000rpm especially.

As did I with the worked over Gen1 intake.

 

[danny_holtermann]

driller.. damn that is a nice looking gen 1 intake,
aj, do you just have the conical filter out there in the open, or an ice box?

 

[cadillackman]

I wish we could just put the 1st gen intake on the 2nd gen motor. That would be a solid gain.

 

[OxmanWI]

Why can't it fit? Just doesn't mate up or some deal?

 

[kustomizingkid]

It would fit fine... but the EGR tube would need to be switched... and you would need gen 1 fuel lines, and throttle cable... and cruise cable... and probably lengthen a few wires...

 

[danny_holtermann]

Pita

 

[OxmanWI]

gotcha, I figured the throttle and cruise.

 

[Chromebrow]

It would fit fine... but the EGR tube would need to be switched... and you would need gen 1 fuel lines, and throttle cable... and cruise cable... and probably lengthen a few wires...

I've got all these parts still on my Gen 1 parts mark, if anyone wants to try it out, toss me an offer.
I need to save up for my Cobra intake...and my endless list of other upgrades and mods that ill never be able to afford to do

 

[topher5150]

crazy question would a gen1 cruise cable work on a gen 2 with a cobra intake

 

[91 LSC SE]

Searching for close to an hour now and this is the only thread that directly discussed Changing to Cobra intake on a 2nd gen. I found another from 2011 that briefly discussed adding it, but didn't discuss the gains - that thread was: "Got these in the mail today"

Was it ever dyno proven if it actually hurts or improves the performance of a stock 2nd motor?

And with changing gears to 4:10 what does is the M8's rpm at 70mph?