Safe amount of boost for the STS-V?

[MCaesar]

That was really helpful

thanks

The next thing they need to do though is to come down on all the aftermarket tuners ridiculous power claims. I can't tell you how many 400HP Mustangs or Japanese cars that I saw that couldn't even break 13.5 in the 1/4

I saw one RSX that advertised 525HP and ran 13.7

Pleaaasssseeeee

[chevelle]

When you see the air intake and air cleaners on the STS-V and the XLR-V you will realize that changing to any commercially available "cold air intake" will slow the cars down....considerably. The systems come with cold air intakes and air cleaner elements that flow considerably more than anything available in a pleated paper or gauze element. The elements are a new technology "power core" that have flow capacity well beyond any pleated element that is twice the size of the power core air cleaner. Both units are ducted straight to cold air so any mods in that area are going to be backing up. Plus, at the extremely high air flow rates there was a great deal of work done to make the MAF operate correctly with no restriction. Modifications to the flow path will cause the MAF to read incorrectly and that, too, will slow it down.

To get those power levels there were not any stones left unturned.

The exhaust still had to meet pass by noise levels, though....so.....

Hopefully the power claims will start to become reasonable with the SAE "certified power" rating. Any power claims that are not certified would be open for question so most manufacturers will adopt them I would hope.

[Vrocks]

So a CAIK will be worthless and an aftermarket exhaust will be too loud.... It'll be interesting to see how much smaller we can make the pulley before it goes boom.

Chevelle,
Did you do some of the engineering work for the SC N* (sure sounds like you did)? Could you tell us if the engines internals are capable of handling more than 540HP (before the parasitic SC loss)? Would it just be a matter of using higher octane fuel to avoid detonation due to the increased boost?

Could you tell us what the boost level is on a SC N*, and how much more is needed for 500HP?

Thanks again.

[chevelle]

No, but I find out some stuff from a supplier on the project.

I think the boost is around 15 PSI at peak.

I think that the blower on the engine is pretty well maxed out from what I hear. Not sure if it is capable of 500 HP or living with a smaller pulley. I kind of doubt it.

The engine will respond to lower backpressure and very good gas, though. Keeping the intercooler circuit as cool as possible will help, too, so a spray bar on the intercooler radiator will be helpful, especially in hotter weather.

[Vrocks]

Originally Posted by chevelle

...The engine will respond to lower backpressure and very good gas, though. Keeping the intercooler circuit as cool as possible will help, too, so a spray bar on the intercooler radiator will be helpful, especially in hotter weather.

Thanks, There's a Sunoco on my way to work with 100 octane race gas. I think my V runs better when I have some of it mixed in with Mobil 93, so it'll be intersting to see how the STS-V responds (if I end up getting it).

[ktills45]

Originally Posted by Vrocks

Thanks, There's a Sunoco on my way to work with 100 octane race gas. I think my V runs better when I have some of it mixed in with Mobil 93, so it'll be intersting to see how the STS-V responds (if I end up getting it).

Any idea when you will be test driving the V? I'm sure a review would be greatly appreciated by all.

[Vrocks]

Originally Posted by ktills45

Any idea when you will be test driving the V? I'm sure a review would be greatly appreciated by all.

The car is scheduled to be built around December 12th. So there's a chance I won't be able to drive it until early January.

[Dooman]

""The exhaust still had to meet pass by noise levels, though....so.....""

So... A good company already making exhaust systems for the CTS And CTS-V would be smart to get the ball rolling.......