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Old 01-04-2007, 12:45 AM   #1 (permalink)
Steve Austin
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Thumbs up True Hp Package For Srt8!!!!!!!!!!!!!

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
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Old 01-04-2007, 01:15 AM   #2 (permalink)
chiromikey
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sounds awesome...when are you planning to hit the track with her?
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Old 01-04-2007, 02:39 AM   #3 (permalink)
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sounds awesome...when are you planning to hit the track with her?
Here in Canada it is winter so track days will have to wait a few more months.

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Old 01-04-2007, 03:47 AM   #4 (permalink)
glhs837
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Are those estimated crank values?
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Old 01-04-2007, 07:23 AM   #5 (permalink)
HotRodK
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Wink

Wow! $12,000?!?!?

That really makes a turbo/blower seem like a great deal. More power, less money.
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Old 01-04-2007, 08:02 AM   #6 (permalink)
300CUL8R
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Computer flash (safe tune) 24.8hp on 94 octain
Ahhhh 94 octane I remember it well. Not this hippie crap we have here in California. 91 octane blows.
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Old 01-04-2007, 08:40 AM   #7 (permalink)
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Ahhhh 94 octane I remember it well. Not this hippie crap we have here in California. 91 octane blows.
This is a problem of us as well. There was a day every gas station sold it but now it is only sunoco and some other private stations. I would say it is 1 in 5 have 91+.

I live right beside a track so we can fill up over there i the summer so that helps a bit.

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Old 01-04-2007, 08:52 AM   #8 (permalink)
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Wow! $12,000?!?!?

That really makes a turbo/blower seem like a great deal. More power, less money.
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.

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Old 01-04-2007, 09:42 AM   #9 (permalink)
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Nice package!!





Nitrous setup?
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Old 01-04-2007, 09:42 AM   #10 (permalink)
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Sounds like your building a good foundation S. A.!
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