gen 1 intake vs. sn-95 cobra intake

[driller]

Port and polishing an intake is like getting headers. On a stock setup adding these has PROVEN to gain next to nothing. But if it makes you feel good, you can do it.

BS - this is bad information!

So, porting and polishing along with headers makes nothing???

Nov. 12, 2005 - 13.97@99.1
Mar. 4, 2006 - 13.68@100.4

The only mod between the two track outings was the addition of Kooks headers. I did not have any back to back comparisons before/after the intake swap but later in Nov. 2006 I did run a 13.43@104.2.

Oh, that's right... we're talking Gen2s. LOL

Nevermind.

Port and polishing an intake is like getting headers. On a stock GEN2 setup adding these has PROVEN to gain next to nothing. But if it makes you feel good, you can do it.

 

[unity]

I said next to nothing. Track is one thing. You know that that are many factors at the track that can dictate a run.

On the dyno it was proven that a port and polish dont have any gains that make it worth it. A dyno is a more controlled environment. And when it comes to headers, you can get the same gains with better manifolds for a lot less. If I can find the thread on the modular site I will. It was rather long and a year or more old. I think it was at modularfords.com

Everyone comments on cost versus gains. The same gains can me made for less $$.

Again, talking about a 4.6L that is not blown, NOS, etc.

 

[7 sek mark]

ya some people might not call 3 tenths and 1.3 mph much of a improvement. i have been around drag racing for a little while now and i know guys that are happy to see a 1 tenth gain out of a part. the headers might not be worth it to some people but i say $260 per tenth is not that bad of gains. if your car will never see the track and all you are doing is trying to build a car thats a little quicker than stock then no the headers might not be for you.

 

[97blklsc]

That makes no sense, the IAC is on the passenger side by the TB, no?

No, IAC on the Cobra manifold is on the driver side towards the front of the manifold.

Ok... lets talk basics... WTF is the point in putting in 5 hours of labor and 500-700 to "swap" intakes? The cobra one gets you 10 maybe 20hp at the most... a gen 1- gen2 swap? No documented #s for that.

A chip would be a better investment when it comes to both money and time and would probably provide same results at the track. Combine that with a better flowing exhaust and you're ahead of the game and you have a better sounding/shifting/accelerating car. For a similar amount of money.

WTF is the point? Like Mike said, everyone has had positive results with it. Knowing how difficult it is to get 300RWHP out of these cars, 10-20RWHP is a HUUUGE step in the right direction that pretty much nothing else in its price range will get you. Using your logic, combine this manifold with a exhaust and chip and you will be yet another step ahead of the game - this is my setup and it really breathes fire above 3500 RPM. Plus, it looks badass

I wish we had some dyno numbers, but I *thought* the Cobra intake resulted in better torque at the low end of the RPM.

Less low end torque, more mid-high RPM HP and more midband Torque, for the N/A cars anyway. Supercharged cars are a whole different ballgame.

ya some people might not call 3 tenths and 1.3 mph much of a improvement. i have been around drag racing for a little while now and i know guys that are happy to see a 1 tenth gain out of a part. the headers might not be worth it to some people but i say $260 per tenth is not that bad of gains. if your car will never see the track and all you are doing is trying to build a car thats a little quicker than stock then no the headers might not be for you.

Couldn't say it better myself

 

[unity]

Ya, I see about the IAC now. Guess I never noticed. That looks weird to me seeing so far from the TB!

 

[maxmk8]

WTF is the point? Like Mike said, everyone has had positive results with it. Knowing how difficult it is to get 300RWHP out of these cars, 10-20RWHP is a HUUUGE step in the right direction that pretty much nothing else in its price range will get you. Using your logic, combine this manifold with a exhaust and chip and you will be yet another step ahead of the game - this is my setup and it really breathes fire above 3500 RPM. Plus, it looks badass

You will not get 300 RWHP out of a mark VIII engine that is N/A. I would just do exhaust and chip and go big and get a supercharger. It will add more to the car per $ than any other boltons... but it also stresses a 10+ year old engine so you have to be careful. All i was trying to tell you is that getting the Cobra intake is just a very labor intensive and expensive mod that only yields modest results.

Get headers/exhaust/gears/converter/chip first.

That is all, just trying to help you out.

 

[J]

One thing to note about leaving the stock Mark fuel rails on there: you will not have access to the schrader valve on the fuel rails,

Couldn't you run an elbow of sorts and modify it to work?

Ya... but its a COBRA intake! You get a nice snake emblem!!!

LMAO!

Also it is illegal for SMOG in cali...

Acccctually. Its not. Anything "adjustable" is illegal, but swapping intakes is not because the 99 Cobra intake is NEWER than any M8 you install it on, just as long as you use all the emissions components.

 

[driller]

I said next to nothing. Track is one thing. You know that that are many factors at the track that can dictate a run.

True but there was honestly little difference between the atmospheric conditions - you know I log everything.

You will not get 300 RWHP out of a mark VIII engine that is N/A.

With dyno runs from 260 to just shy of 280, I think heads/cams would put me over the 300 RWHP on my N/A Mark VIII. I hope to see one day.

Less low end torque, more mid-high RPM HP and more midband Torque, for the N/A cars anyway.

My dyno charts showed improved torque and HP across the entire spectrum with the modded Gen1 intake.

 

[droadarmel]

ah nuts

 

[droadarmel]

You will not get 300 RWHP out of a mark VIII engine that is N/A.

i hit 300 on the dyno and im n/a

 

[Okiemark]

Im pretty sure lonnie is over 300 too and hes n/a

 

[maxmk8]

Couldn't you run an elbow of sorts and modify it to work?



LMAO!



Acccctually. Its not. Anything "adjustable" is illegal, but swapping intakes is not because the 99 Cobra intake is NEWER than any M8 you install it on, just as long as you use all the emissions components.

Jesse ask Lonnie and how much BS he had to go through the cobra intake was deemed illegal since it didn't come with the car... if memory serves me right.

 

[maxmk8]

i hit 300 on the dyno and im n/a

What kind of mods do you have?

 

[maxmk8]

True but there was honestly little difference between the atmospheric conditions - you know I log everything.



With dyno runs from 260 to just shy of 280, I think heads/cams would put me over the 300 RWHP on my N/A Mark VIII. I hope to see one day.



My dyno charts showed improved torque and HP across the entire spectrum with the modded Gen1 intake.

Well I guess so JP, but honestly you have done work to your intake already... if you throw in a set of heads and cams little is left of the mark engine but the block. Point is I have not seen a Mark VIII N/A with 300RWHP with a Mark VIII engine. Why do your dyno runs vary so much in terms of HP #s?

I am sure anything is possible hell they make a pinto run 8 second 1/4 miles.

 

[driller]

Well I guess so JP, but honestly you have done work to your intake already... if you throw in a set of heads and cams little is left of the mark engine but the block. Point is I have not seen a Mark VIII N/A with 300RWHP with a Mark VIII engine. Why do your dyno runs vary so much in terms of HP #s?

Are you implying my Mark VIII is near to no longer being a Mark VIII?

I just want it to be all it can be naturally aspirated and still basically have a stock drivetrain. The ONLY engine mod so far has been a modified STOCK intake. Everything else is your typical bolt-ons - no more than what any shade-tree mechanic could accomplish. The tranny is basically just a 'bullet-proofed' STOCK tranny with a higher stall lock-up converter.

As far as the dyno numbers - the reason for the variance is the dyno operator. Without the dyno operator being savvy enough to lock the transmission in 3rd and hold the torque converter locked ON A EEC-IV platform, the dyno run has to be run way higher on the rpm scale and sometimes still it will want to downshift or unlock the converter throwing the numbers out of whack.

For the record, the dyno numbers I put out there represent the best non-interpreted number from a 'good run' - i.e. not a shift or lockup spike or any other anomaly.

 

[driller]

Im pretty sure lonnie is over 300 too and hes n/a

Yes, I think my sources would confirm that.

Bottom line relevant to this thread, very few do all that can be done naturally aspirated before loosing interest and going with nitrous or supercharging and it seems "everybody" puts on the infamous Cobra intake.

I chose a different path, that's all.

 

[maxmk8]

Are you implying my Mark VIII is near to no longer being a Mark VIII?
.

Nope.

Some were debating my comment "300rwhp in a N/A Mark VIII engine".

What I said is that if you use non stock heads, cams, intake you might as well call it a different engine it is no longer a mark VIII engine. If you had an LS1 in your mark VIII it would still be a mark VIII but it wouldn't have a Mark VIII engine. No need to twist my words

 

[JERM]

What I said is that if you use non stock heads, cams, intake you might as well call it a different engine it is no longer a mark VIII engine. If you had an LS1 in your mark VIII it would still be a mark VIII but it wouldn't have a Mark VIII engine. No need to twist my words

Why wouldn't you call it a mark viii engine? They originally came in the mark viii, its just a modified mark viii engine, not stock. You are keeping the entire short block and stock internals. A motor swap is completely different!

 

[maxmk8]

Why wouldn't you call it a mark viii engine? They originally came in the mark viii, its just a modified mark viii engine, not stock. You are keeping the entire short block and stock internals. A motor swap is completely different!

Eh I am not going to argue semantics. Point is.. 300 rwhp is very hard to do when it comes to N/A Mark VIII engine. lol that is all.

 

[J]

Jesse ask Lonnie and how much BS he had to go through the cobra intake was deemed illegal since it didn't come with the car... if memory serves me right.

I remember that story...there was a ton of other BS involved too.