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Originally Posted by ponygirl74 Okay, I am running 9.1 @78mph at the 1/8 track. I want at least 8.9 so I can kick the little turbo & NOS ricers. I had a turbo Subaru beat me Sat. and it hurt 
You can see my mods from the list below. Is there another inexpensive bolt-on mod that will help me pick up 2 tenths in the 1/8 mile? I was thinking pulleys because they are cheap. A t/b would be more expensive. Please give me your opinions on what you've had experience with--especially at the dragstrip or dyno.
BTW - slicks/DRs are NOT an option as I have no way to change tires every weekend
Two pics of me last week (beating another yellow GT) http://i6.photobucket.com/albums/y22...irl74/Mevs.jpg http://i6.photobucket.com/albums/y22...rl74/Race1.jpg |
Nice to see you on the forum again. Glad you got your own diablo, seeing as how I eventually found out that they really don't like to tune more than one car at a time
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Those soob's can be a problem, especially in the 1/8 mile. Some things to consider:
1. Racing gas. See if there's anywhere you can tank up with race gas before the race and set your timing advance to take advantage of this. The stock Diablo performance tune does not address this - it is designed to run reliably on the street with 93 octane. If you can get access to a friendly dyno, try to figure out how many degrees of advance your car will tolerate on race gas - then dial that in with the Diablo right before you race (and reverse afterwards, of course). The dyno tech should also be able to check your car's tune and make sure your A/F mixture is as it should be.
2. Lighten up. Weight, that is. Mustangs like ours don't look big, but they are heavy beasts. When racing, do so with the gas tank as low as your dare; the windshield washer empty; and the spare tire, jack, everything you keep in the trunk, and the back seat sitting at home or in someone else's vehicle. The difference between a fully laden
stang and one as light as possible can easily be 100 pounds or more.
3. Transfer weight. Traction can be hard to come by, and if you don't want to run slicks or drag radials, consider moving the battery to the passenger side of the trunk (kits run about $100 or so). This frees up valuable landscape under the hood (supercharger, anyone?), and transfers 50# to where it will do the most good.
4. Throttle body & upper intake plenum. Kits for $400 (polished Accufab 70mm and matcing intake plenum) and $420 (same as above, but with 75mm throttle body) are available from
www.mustangtuning.com (price includes shipping). I have the 75mm tb, and the C&L plenum (plain as a mud hen, but she works), and I'm happy with them. In general terms, the 70mm item will give you more on the bottom end than the 75mm, which will give you more top end.
5. Free time. This is the time you're responsible for. Practice, pay attention to 60' times (if you're over 2.0, you can benefit from practice). Try different shift points. Truth to tell, most folks can improve their 60' times with a little effort (I've never dipped below 2.0 that I know of - so I resemble this remark).
6. Pullies. I like the Steeda models. Keep in mind that these will have to go if you install a supercharger.
luck!
tripleblack
What mod to knock off 2 tenths of a second? 
Race gas is a possibility as well as I am working on getting some dyno time right now. I was just looking for a cheap little pick-me-up and you gave me some good ideas. Seat time will probably be the best thing for me as I've only gotten around 25 runs in.
