p.s. putting an turbo or s/c and leaving timing and fuel maps "stock" is completly crazy and wont last. Stock ECU retards the timing only after knock sensor records excessive pinging.

To regard such setup as ok, is ignorance.... Sure, your engine might be stronger than that, but its life will be significantly shortened. Running rich also will kill your cat soon.

 

I think you need to read what you just wrote... Lean kills engines, not rich... The simple fact is, any increase in hp / engine load will reduce engine life. However I would have to say that running 5-7 psi on the tc engine will have no dramatic effects as to engine life and should last well over 100K miles eithout an ecm flash or aftermarket ecm. Now if it is beat on hard over it's life then yes, the engine will go down hill allot quicker than it usually would.

 

hrm. okay so let's assume we're going to purchase all the items that you say zpi will be releasing to upgrade the s/c and barring the s/c itself are there any parts that we can purchase now that would bolt on later that won't give a us a drop in gains specifically any header / or the exhaust /spipe that would help with whatever zpi's plans are for the s/c ?

 

Get the alphawerks header, creative compacts s-pipe and a good 2.5 inch catback exhaust and you will feel a major difference in your supercharged car

 

Lets hear more about the tamper-proof pully and what options might be comming soon that will not void the warranty...... im sure truck loads of people would like to know this.

 

The pulley itself is not tamper proof. It's the little grey cap that they put on the bolt, that holds the pulley on if you get the supercharger installed by the dealer. I installed my supercharger myself so I never put the cap on.

 

The pulley is not tamper proof, just comes with a cap that you are supposed to install. Looks like it will get brittle when heated up and applied. many ways to get around this. One well know company on here that I am working with is designing an oversized crank pulley... that is one work around... The other is to simply not install the tamper proof cap unless a serious warranty claim is needed.

 

so an oversized crank pully and the stock pully on the s/c and the yield is higher? Do they have any hp numbers?

 

No no hp numbers yet, because they have not been made or have not been released yet. Depends on the pulley size, Larger the crank pulley, more boost.

 

A safe estimate knowing sc is 10-12hp+++ per psi of boost. So a 10 psi pulley should net around 30-40 or more whp.

 

does the crank pully have anything keeping it from being''tamperproof''? ..... say the pully did put out another 30whp .... would the current stock setup be ok or will other things need to be added/upgraded?

 

Not 100% sure, but if I know toyota they way I do, there conservative map is going to be PERFECT for more boost. I would say the ecm change should be good to 10-12 psi if they did not put in a massive safeguard at a certain psi putting the ecm in limp mode. There is nothing on the pulley itself to keep it tamperproof. It is just a simple pulley. Also for the guy many posts above, a sc car putting out a peak of 300whp vs a turbo car putting out a peak of 300whp... well sorry to burst your bubble but the sc car will wipe the floor with a turbo car of equal hp period. There is no equal to instant boost / throttle responce that a turbo gives you.

 

What would it involve swapping out this pully?

 

Loosen belt, take off pulley bolt, remove pulley, put new pulley on, reinstall bolt... re-tension the belt or possibly a new belt if there is not enough movement in the tensioner

 

Thats not always true. The low end of the supercharged car can cause more wheel spin and a SC makes more boost as the RPM's increase. A turbo car makes full boost at a certian rpm and holds (if setup correctly). Its a toss up but ideally a turbo car has just as many things working for it as the SC car does. On another hand, with the wheel spin under control, the SC car should get the hole shot.

Charles

 

Bingo, if properly setup both are great. But in the track all of my sc cars usually whipe the floor with equally weighted / powered turbo cars. Just have to learn throttle control, if you have that you have it all

 

By the way, good quote and very true but you spelled business wrong...

 

Good catch. Had that in there for about a month and hadn't noticed it. Thanx

 

n/p should have pm'ed ya, did not mean to be an @ss... Fact is I am probably the worst speller on here haha!

 

i wonder if anybody has actually worn out their clutch yet --- does anybody know how long the stock is rated for?