If it's the summit dip switch, it's attached to the TAM screw on back of the cluster.. IIRC.

and since it's for a 8cyl.. the settings are off.lol.

 

First of all you guy's are lucky I wasn't home last night to debate with you. I was to busy wrenching on a Audi 20v 5cyl. turbo quattro. Might I add that makes over 550hp @ the crank. on stock internal's with CIS mechanical fuel injection. I highly doubt any of you have been able to get over 100HP per cylinder on any car you have ever worked on, let alone without upgrading internal engine component's. First of all you guy's would get lost just trying to understand how CIS injection works let along even fathum wrenching on a engine as complex as the Audi. Any of you even know what a decelleration valve is & how it works? I seriously doubt it. Any of you even been able to make a mechanical fuel injection set up deliver enough fuel to compensate for 18lbs. of boost with a stock fuel pump? I highly doubt it. All you guy's need to step off, talking about read a book! Nothing any of you have even said/stated has even proven that my statements are false. Shadow is trying to say that a centrifugal SC can't produce peak boost before redline, but then states that if you run a smaller pulley you will exceed the limit's of the SC before you reach redline which will damage the SC. Well that sound's to me like it is possible to reach peak boost with a SC before redline comes around.

Jay25,
Nobody ever said you didn't know your sh_t, but you decided to shoot down the info I provided by saying those were all wrong answer's. Maybe you can put on your reading glasses & scroll up a bit & read your own post. You still haven't proven to me that my statement's are incorrect. Nothing I stated above is incorrect information when using the information as comparison between a SC & turbo. A turbo will generate more power in higher RPM's then a SC, because it has no real mechanical limitations besides sizing. A smaller turbo will peak out before a larger turbo will, however a a larger turbo will continue to generate "effecient" power at higher boost levels then a SC ever could. Incase you didn't know there are points when to much boost becomes ineffecient due to heat. Thats why it's important to purchase an intercooler which has atleast a 70% effiency rating based on your turbo or SC capabilities. I'm no fool when it comes this stuff, I just don't have as much knowledge as somebody who deals with boosted performance on a daily bases. Which I stated that in a previous post. I do not doubt that you have a far supior knowledge in this catagory then I do. But in no way doe's any of the info I provided fall in the catagory of misinformation. If you want to take the time to read everyone elses post, you will see that there information only backs up the information I have provided. First it was SC not instant boost, then Mishap say's well there is boost sooner but not as much as a turbo would have above a certain RPM. Thats sound to me like there is no lag with a SC, but yet a turbo will have lag until it begins to spool up. Doe's everything you guy's state have to strictly be based on running the 1/4 mile or can you guy's think outside the box for a minute & think about normal everyday driving. It doesn't always have to be a drag race doe's it? Let's not fall off topic here! Just to remind everyone the ? was which is worse turbo or SC. Obviously they both have there fault's, but based on the fact that were not dealing with a full blown race car & someone that want's alittle more power & not have to worry about constantly maintaining a complex system then ofcourse a SC is better for him. Anyone who would debate that is an idiot in my opinion! To further back up my opinion in the past there has been more production vehicles factory equipt with SC then there every has been vehicles with turbo's. Thats a fact nobody can debate, it's very obvious that SC require less maintainence & are over all a more trouble free set up.

 

As a matter of fact, I have. I've built/raced/driven 3 total vintage VW Bugs (turboed), all aircooled, two w/ mechanical fuel injection (one carb blow-thru setup)...blah blah blah. Matter of fact, I spent over $12K on the engine and tranny alone on my second one (absolutely pushing the limits of my Pauter machined block-it had OVER 400 RWHP). But, it's not important, just like everything you have said. Hell, they're only your opinions...and that's all they are.

First off, we're talking about Maximas here. Second, a turbo kit can be as reliable (if not more than) a S/C setup IF the designer of the kit knows what is going on. It's all in the design. The reason the S/C kits for the Maxima are considered more reliable is because they are just that...KITS! Any kid with a wallet can install a kit (and no offense meant by this). If there were as many Maxima turbo kits out there (properly designed and supported by the aftermarket), then this argument wouldn't be taking palce at all!

I've looked at a lot of your posts. It seems that you have a flicker of insight and intelligence. Don't prove yourself wrong by posting the type of **** you've posted in this forum the past few days. You're wrong when it comes to boosting the Maxima. There are guys here with years of experience that are telling you you're wrong. But, to keep hope alive, prove them wrong with a project Maxima...that will solve any of the recent debates.

 

What does an Audi and CIS have anything to do with Supercharging and Turbo in a maxima? This is a Maxima board right.


Okay, your telling me I need to read a book okay! where do they sell how to boost a Maxima? I'll go and buy it since you said so. You think the maxima is the only vehicle I have worked on? LOL, no.

My stock MAF is beyond maxed out, how did I get 349HP to the wheels if I maxed out my MAF. What magical thing did I do to get some fuel after the MAF maxed out? wow I guess we are both in the same boat. You on that audi and myself on the maxima.



show me a above post that I said "I KNOW MY ****". I NEVER said that. Please dont put words into my mouth. I know how the Vortech centifrugal SCer works. here let me quote what you posted

"Supercharger = more power down low, but less power up top"

that statement is wrong for the centrifugal SCer. Now for the roots type SCer that statement is correct. I posted Dynos to contradict your statement since you were not specific. You just posted away not being specific. Thats why you have these guys posting this and that.


The below statements are true, so I owe you an apology, "SORRY"
Supercharger = Belt driven so it takes power to make power.
Supercharger = Instant power the second the gas pedal is touched.
Supercharger = no real cool down period required.

thats all correct. read too freaking fast

and these were your turbo statements:

.

this statement is not correct, what size turbo are you talking about? there are many sizes of turbos thats why this statement is not correct. Since your working on an Audi you should known this?

...[/QUOTE]

yes this is correct, I agree with this statement

.yes if you have a large turbo it will take more time. What about SRTs/EVOs/audis/ and last but not least Bags533 who I have raced many times. He pulls instantly. Instant boost since he has a T3 and a much smaller AR.

yes this statement is correct. But look what you posted above, you said your working on a audi that puts down 100HP per cylinder. Whats the solution to this last statement? Here let me help you, is called a turbo timer.

 

We're talking Maximas here, not Audis. I don't go to your Audi forum or wherever and act like I know anything about the car. That's the difference between you and I.

And yes, a centrifugal SC doesn't produce peak boost before redline. But you can exceed the limits of the SC before redline. Just because you exceed the limits of the SC doesn't mean it's not still producing boost. If you put a pulley capable of 20psi on the Maxima, it won't make 20 psi until redline. But, from say 4K rpm on, you've probably overdriven the blower and it is risking damage. Why can't you understand that?

And a turbo doesn't always generate more power in the higher RPM's than a comparable SC. Just like you can use different sized turbos, you can use different sized SC's. They're not really directly comparable.

And with a centrifugal SC, boost does technically start to increase as soon as you step on the gas, but there still is lag. With a turbo, the instant you step on the gas, the turbo starts spooling faster. The lag is there becuase you are waiting for the exhaust gases to start spinning the turbo fast enough to generate more than negligible boost. With the SC, you're just waiting for the belt to spin fast enough to generate more than negligible boost. All you have to do is watch the boost gauge of a SC car and turbo car and you'll see that both have some delay/lag.

And yes, you were posting misinformation because you totally overlook the fact that there are so many different types of SC's and turbos. Reread my post, I've already corrected all of your assumptions. So how was that backing you up? Read into our info what you will, but just realize that what you posted was false and in no way backed you up.

The differences between a turbo and SC are more apparent for daily drivers than for a race car. In the 1/4, high rpm power with no low end is fine. Just rev it up on the line and dump the clutch. But in the real world, you'll want response and low end. And on a Maxima, that really isn't there with the SC.

You just keep believing you're correct. Luckily, you're the only one that thinks that and other people are actually learning something.

Wow, more production vehicles with SC than turbo huh? Let's see, first off. All semi trucks/large commercial vehicles use turbos, not SC's. These things see over a million miles in their service lives often. If the SC was so reliable, why not go that route? Why not supercharge diesels instead of turboing them like they do? Wouldn't it be more reliable?

Factory turbo cars, either current or past:
Audi
Buick
Chrysler
Dodge
Mercedes (turbo diesels)
Mitsubishi
Nissan
Plymouth
Pontiac
Porsche
Saab
Subaru
Toyota
Volkswagon
Volvo

Factory SC cars current or past:

Ford Mustang
Jaguar
Mercedes
Pontiac

I'm missing a bunch, but you get the idea. And w/ the exception of Benz, none of the makers in the SC column make very reliable cars.

 

Read anyone of our posts about this topic. They all say the SC is the easier and simpler solution. We also say it isn't the best combination w/ the auto b/c it only makes boost at higher rpm.

We continually prove you wrong and you simply won't accept it. You posted an oversimplified, inaccurate, and irrelevant answer to someone's question and people more experienced posted corrections and advice but somehow you continue to expound your unrelated and pointless dribble like you've seen it all and thousands of hours wrenching on VQ motors making 150%hp over stock is all wrong b/c you say so.

You bring up the deceleration valve (learn to spell it) emissions control device on the Bosch CIS system to make yourself sound big and knowledgable? The damned thing is a emissions band aid when you let off the throttle to allow air to pass and burn excess fuel. Also how did you come by that 550crank hp number? Did you use the commonly accepted 90% drivetrain loss b/c the car is a quattro? The fact that you attribute the Audi's ability to make all that power on it's horrendous fuel injection design rather than it's iron block, low compression, and piston cooling is what makes my head spin. None of that technology other than the 5 valves makes a single hp on that car.

Jay's literally gone around the country installing SC's for people. He has as much experience w/ the thing as the guys at Stillen who designed the thing. Shadow had an SC for two years and enjoyed the shredded belts and melted pulleys that make that SC so much more reliable than a turbo system. Morfeus also built a custom turbo system for a Maxima. Once again, where is your turbo or SC Maxima?

 

First of all i just want to appologise for any misinformation others here think that I have posted. But I kinda flew off the handle when Jay25 mister experience said all my answers were incorrect. For any off you that still feel like they are, then just scroll up & read Jay's last post where he took back his statement regarding the initial information I provided. That's all i was trying to accomplish here. Obviously he realized that his post contradicting my information was inaccurate & decided to resolve the issue by taking his time to acutally read my post. By doing so he has now changed his mind about saying that my information is "completely wrong". I never wanted to start trouble here, only to help support other org members. That is the reason I put in my original post that hopefully some other orger's will chime in & post more info to help him with his decision. Not hopefully some other orger's will pop in and start running there mouth. I'm sure he has more then enough information to help him make the wisest decision possible. Once again I never said that a SC was the best of the two worlds but the smarter way to go for his application.
Mishap,
I don't doubt that you have more then the average amount of talent to consider yourself mechanically inclined, but don't research something like the CIS injection system strictly to act like you know what's up with it. Cause it's very obvious to me that you don't. Maybe if you could fathum how difficult of a system it is and what kind of accomplishment I have made with it you would be telling me that I must be some kind of genius with it, because how in the world were you able to make it supply enough fuel to accomplish those kinds of number's. And yes, I can really only tell you what the motor made at the crank, because I do not have resources that will allow me to place the car on a four wheel dyno. Let's not forget that around 80 to 85% of the manufacturers you list that produce turbo vehicles also have produced SC vehicles as well.

 

this is what happpens when people make dumbass posts about **** that has been discussed over and over and could have been easily found by skimming back a few pages....you get a long *** thread thats lost its point

 

Yeah, but at least this dumbass post had some decent info being debated in it. A little flaming, but nothing too personal. And hopefully some knowledge was gained. A lot better than 90% of the new threads these days. But hopefully that FAQ gets done so that these posts get minimized.

BTW, nostrixide, hopefully you didn't take anything too personally. We all flew off the handle a little bit as it often happens on the internet. Good luck with your Audi

 

alright folks we handled this like a mature audience great job. Time to close this chapter out.