True Hp Package For Srt8!!!!!!!!!!!!!

[tdola]

Originally Posted by Steve Austin

I noticed that you have a vortech on your mustang. The thing is that those kits are cheap because of demand. A viper package for a supercharger will run you $6.500 plus a tune you will be lookin at $7,500 and that is not with instal. Now put a turbo in that mix and just the kit will run you 10k. Instal and tune will easily bump you to almost the 20k mark if it is done right.

When you start dealing with parts that are low volume the price goes way up. That is one thing I always enjoyed about my Saleen S281 SC that I owned. If you wanted headers for the cobra motor or anything else it was easy and cheap to get.

In the end I guess you have to look at it this way. The more it is done the cheaper it gets. Also could you imagine the hp gains with a supercharger now that those mods are done. If I was going to do a supercharger or custom turbo kit I would change the stock pistons as well before I did it.

Steve Austin

In addition to porting and polishing the heads with a 5 angle valve job, etc, etc, and porting and polishing the intake manifold (or Extrudehone") has any one increased the intake valve and exhaust valve sizes like alot of the Chevy guys do??? Also, has anyone thought about a different intake manifold, ie: shape, height, length??? Just curious.

[srt8danno]

Impressive package and very impressive numbers. Look forward to more of your reports with some actual track times….when the spring thaw comes.

[tbyrne]

Is that 500hp at the crank or rear wheels?

[bigrick21]

Cool results Austin. How about rear end? Still stock? So here is my question, with our street tires, how much of the 500 hp can we really hook up and bring the times down? Will be interesting to see what kind of results you get regarding times, quarter mile, 0-60mph, 60 ft times etc.

Even stock, the car has hook up issues and one must learn to launch it to really get the best times. Suggest you might try utilizing a performance computer to practice getting out of the hole with littel wheel spin in order to utilize the 500 hp, as there is limited selection of street tires available for our SRT8's that enable a 500 hp machine to really hook up. Of course with the 500 hp, one can make a bit of a slip off the line and still make up some time down the 440 with all that power, but not nessessarily be ones best potential times.

If you can pull a half second off your quarter mile time, will be impressive, maybe low 12's?!

[FreebirdSRT]

Originally Posted by tdola

In addition to porting and polishing the heads with a 5 angle valve job, etc, etc, and porting and polishing the intake manifold (or Extrudehone") has any one increased the intake valve and exhaust valve sizes like alot of the Chevy guys do??? Also, has anyone thought about a different intake manifold, ie: shape, height, length??? Just curious.

Hogan Maifolds made a custom intake manifold for a 300SRT owner. I do know it cost the owner $5000 for the one-off manifold to be built by Hogan.

[Steve Austin]

Originally Posted by tdola

In addition to porting and polishing the heads with a 5 angle valve job, etc, etc, and porting and polishing the intake manifold (or Extrudehone") has any one increased the intake valve and exhaust valve sizes like alot of the Chevy guys do??? Also, has anyone thought about a different intake manifold, ie: shape, height, length??? Just curious.

The stock intake is designed very well and with the extrude hone performs awsome. If someone was going to do a different intake would be outragous in price and not really woth it to anyone that would produce it.
The second set of heads we have coming will have different valve sizes than stock. We are not sure how far we can go yet but we will find out shortly.

I wish these things were as easy to work on as the chevy stuff

Steve Austin

[crhemi]

When do you get concerned about the half shafts?
That seems to be the next weak link.

[HotRodK]

Im sure you will post some prices once you get everything sorted out. There will be a lot of interest for sure. Me included.
Lastly, Are you going to be doing package pricing?

[1fast400]

You can get the 426 hemi from indy for that price, with a core exchange.

[1fastLXRYcar]

Originally Posted by Steve Austin

Ok guys you know I have been workin hard on getting my car to perform the way the factory should have made it. Well I finally got my parts back yeasterday from extrude hone and put it all back together.

Here are the current mods we have come up with.

Computer flash (safe tune) 24.8hp on 94 octain

Race tune is 26.3hp on 100 + octain

180 degree t-stat

Coldair Intake

Extrude honed intake track

Ported and polished heads

Berlyllium valves with titanium valve seats

Titanium retainers

Titanium valve springs

3" mid pipes with high flow cats. I also made a set of pipes with no cats but you need to run the rear mufflers for max power if you are running straight pipes. This is due to the back pressure issues.

3" catback exhaust with mid and rear mufflers. I also did a setup with just the mid muffler.

The best combo for power was the high flow cats and just the mid muffler. The issue is noise and it is way too much with just the mid muffler. For comfort you need the mid muffler and the small rears if you are going to run no cats.

This combo netted 500hp@6100rpm and 494ft lb@4700rpm

This car is a beast now! I am not finished yet I have another set of stock heads coming this week that are going to be done differently to the ones I used for this project.

If anyone is thinking about doing a package like this you will need at least 12k.

Hope this helps you guys when thinking of ways to get the power out of these 6.1L SRT8's

Steve Austin

For your computer flash, which one did you use? I am looking for a good dependable flash for 94 octane.