Removing air baffle (walrus snout)

[LimoMerc]

Does removing the air baffle (walrus snout) on the air intake increase horsepower. Has anyone gone through the trouble of dyno testing with and without it?. The reason I ask is I did two mods at once and can't tell which one was responsible for the pure joy of driving the car after I was done. I'm not willing to discuss the other mod at this piont and time. Thanks.

[Rider90]

-POST DELETED-

[Bradley G]

Changing the whole setup to a JLT, got me ten horses, on the dyno.

I can't imagine blocking the J-tube being worth any additional power.
I think most have eliminated this by itself,for the increase in engine sound and looks.
I can't imagine anyone not wanting that under thier hood!:D
Bradley G

[Smokie]

Speaking from experience, any time you dyno your car without changing anything at all you will have a variation of about 2-5 hp and 3-6 tq. Removing the snorkel will increase the decibel level of the intake. It will not make a change in power than can be proved or disproved.

Any single mod. that promises a gain of less than 5 hp is nearly impossible to document because 5 hp is well within the range of variation on consecutive dyno pulls while changing nothing.

If you like the whoooosh, remove it....and tell yourself you have more power....:D

[David Morton]

Well, the J-tube is a resonator that decreases engine intake noise and personally I don't want my Marauder to sound like a 454 Caprice with 4 barrel Rochester opening up the secondaries.

And since I'm gonna wind up with some form of forced induction, probably turbocharging, the JLT set-up seemed presumtive, so the Predator tuner is the only performance mod I've seen fit to get.

Everything else will have to wait for the FI so I will be able to make sensible modifications that are in line with the torque characteristics of the particular system I get.

Hope this sparks your imagination Bradley. :D

[Bradley G]

I hear ya Smokie,

The gains I spoke of from the JLT, were 10 each time within .5 hp on the graph.
The hp rating between pulls on the factory box, was that close too!your results may vary!:D
Bradley G

Speaking from experience, any time you dyno your car without changing anything at all you will have a variation of about 2-5 hp and 3-6 tq. Removing the snorkel will increase the decibel level of the intake. It will not make a change in power than can be proved or disproved.

Any single mod. that promises a gain of less than 5 hp is nearly impossible to document because 5 hp is well within the range of variation on consecutive dyno pulls while changing nothing.

If you like the whoooosh, remove it....and tell yourself you have more power....:D

[SergntMac]

Speaking from experience, any time you dyno your car without changing anything at all you will have a variation of about 2-5 hp and 3-6 tq. Removing the snorkel will increase the decibel level of the intake. It will not make a change in power than can be proved or disproved. Any single mod. that promises a gain of less than 5 hp is nearly impossible to document because 5 hp is well within the range of variation on consecutive dyno pulls while changing nothing. If you like the whoooosh, remove it....and tell yourself you have more power....:DAbsolutely true, well said Javier.

[blackf0rk]

I removed my snorkal and got like 30HP! I don't know if it was that or the big vinyl sticker I put on my car. Either way I'm running like 500HP at least now...







LOL

[CBT]

Fo ****zle?
I removed my snorkal and got like 30HP! I don't know if it was that or the big vinyl sticker I put on my car. Either way I'm running like 500HP at least now...







LOL

[Bradley G]

David thanks for your comments.

I was not that thrilled to become louder,It doesnt get loud till your way into the pedal,and the sound has a pitch that is cleaner.
Sorry David, no way to make a Marauder sound like a 454 4 bbl., even if you take the exhaust off !:P
If you pioneer us into turbo charging, I will read every post you make.:grad:
Quit using words I do not understand.If you mean overkill,turbocharging would seem to gain the most from the free flowing design of the JLT.
What is FI?
Latley its been discussed that the newest software available soon (May). is going to be from SCT.ie; monitor more parameters; a/f ,timing, data logging ,ect.Perfect for a venture like yours!;)
As Far As torque goes! A turbo system may need additional help in the low end .Unless they have figured out how to pre charge the turbo like I read in the Ford 6.0L diesel has.And to be frank, it improves the spool time,it does not make instant.
Bradley G
Yes you always get me thinking, .Thanks!

Well, the J-tube is a resonator that decreases engine intake noise and personally I don't want my Marauder to sound like a 454 Caprice with 4 barrel Rochester opening up the secondaries.

And since I'm gonna wind up with some form of forced induction, probably turbocharging, the JLT set-up seemed presumtive, so the Predator tuner is the only performance mod I've seen fit to get.

Everything else will have to wait for the FI so I will be able to make sensible modifications that are in line with the torque characteristics of the particular system I get.

Hope this sparks your imagination Bradley. :D

[dwasson]

I removed my snorkal and got like 30HP! I don't know if it was that or the big vinyl sticker I put on my car. Either way I'm running like 500HP at least now...


You must have a lot of stickers.

[ckadiddle]

I removed my snorkal and got like 30HP! I don't know if it was that or the big vinyl sticker I put on my car. Either way I'm running like 500HP at least now...LOL
I'm gonna get rid of the walrus, put me on some big flame stickers on the sides and pretend I'm supercharged. That's probably the closest I'll ever get to it.:banana2:

[David Morton]

David thanks for your comments.

I was not that thrilled to become louder,It doesnt get loud till your way into the pedal,and the sound has a pitch that is cleaner.
Sorry David, no way to make a Marauder sound like a 454 4 bbl., even if you take the exhaust off !:P
If you pioneer us into turbo charging, I will read every post you make.:grad:
Quit using words I do not understand.If you mean overkill,turbocharging would seem to gain the most from the free flowing design of the JLT.
What is FI?
Latley its been discussed that the newest software available soon (May). is going to be from SCT.ie; monitor more parameters; a/f ,timing, data logging ,ect.Perfect for a venture like yours!;)
As Far As torque goes! A turbo system may need additional help in the low end .Unless they have figured out how to pre charge the turbo like I read in the Ford 6.0L diesel has.And to be frank, it improves the spool time,it does not make instant.
Bradley G
Yes you always get me thinking, .Thanks!FI was short for forced induction. Presumptive meant getting ahead of myself and putting something on I'd wind up taking back off later.

From what I've learned here and at the track, I'd like to make a few observations.

1- Without a doubt, IMO, the Trilogy is making the most bottom-end torque. Dennis' Vortec and perhaps the Procharger are making some more higher up the rpm scale. But both types seem pretty even at the traps, all other things equal. If all I was interested in was street racing from light to light, I'd get the Trilogy. (plus the widened rims with Nittos)

2- It is my understanding that the turbocharger kit I'm contemplating (click here) (http://66.70.20.245/store/scripts/prodView.asp?idproduct=78) uses a by-pass valve (in addition to the normal waste gate) that is supposed to eliminate the lag many people associate with turbos. I presuppose it will not make as much bottom-end torque as either of the previously mentioned superchargers though. I used up my first set of rear tires at 7000 miles without any performance mods even though she hooks-up fine and, IMO, launches quite well off the line as is, (I knew I wasn't buying a Mustang) so I'm not all that worked up about my 60 foot times.

3- And finally: it's a given that turbochargers are always going to be capable of better higher rpm torque because they're not dragging a belt across the front crankshaft pulley, mostly by-passing, at 4000 rpm and up; and a given that our DOHC 32 valve engines like the higher rpm band; and lastly a given that, in a quarter mile race, the botton end torque advantage that the superchargers have exists only at the beginning of the race! As soon as the engine hits 4000 rpm in first gear the turbocharger is going to be making more torque through to 6200 rpm when it shifts to second gear and the rpms go down to, you guessed it, 4000 rpm. A repeat performance for third gear.

I believe it's entirely possible to break into the elevens with this kit alone. No nitrous help. Just the Nittos. I've got the rims already.

I used to work for a Buick dealership back in the 90s and have driven the venerable Grand National, a 3500 some-odd pound car with a turbocharged 3.8 litre V-6 well capable of mid-to-low 11s, so I think 11's isn't too far fetched for a 4500 pound Marauder with a 4.6 litre DOHC 32 valve V-8.

And I won't have a belt to worry about. :D