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- From: hotrod@dixie.com (The Hotrod List)
- Newsgroups: alt.hotrod,wiz.hotrod
- Subject: Re: HP and 1/4 mile calcs (fwd)
- Message-ID: <jbdsjyl@dixie.com>
- Date: 27 Jan 93 16:27:14 GMT
- Reply-To: hotrod@dixie.com
- Organization: Dixie Communications Public Access. The Mouth of the South.
- Lines: 31
- Approved: jgd@dixie.com
- To: hotrod@dixie.com
- Posted-Date: Wednesday, Jan 27 11:26:59
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-
- > From MJPELL@freh-01ms.adpc.purdue.edu Tue Jan 26 21:39:47 1993
- >
- > I don't mean to sound smart or like I'm bragging, but for reference, I
- > ran 14.0 (best) qtr mile with 3.08 single track last summer in my '69
- > Malibu. The engine was a fresh well built 383. I buddy of mine with
- > an '80 Z28 4sp 3.03 posi ran a 13.51 (best) with basically the same
- > engine.
-
- Well a 383 is a long stroked (high torque) engine. Depending on what cam
- is in it (as a crane 290H CRN 114802 with an RPM range of 2,000 to 4,500
- and a cruising range of 2,600 to 3,200) you could be getting proper torque
- off the line with with the 3.08's to get it moving. What's your top speed
- if ideal it should be around 93 miles per hour?
- >
- > This year, I have 4.11s though! I can't wait to run it. With the
- > 3.08s, I barely got into third gear (TH350) at the end of the strip.
- > Now, it seems that the engine just runs out or RPMs at the finish
- > line.
-
- I think youll see a great improvemont here. Probably nock almost a second
- off your times. But don't be surprised if the top speed dropps, if it doesn't
- operhaps an even greater ratio change is in order. Actually it sounds like
- your hiotting the traps in second which is about a 1.60 to 1.9 ratio from
- added to the 3.08's means equivalent to a 4.93 or 5.86 final ratio. I`d
- start with about a 4.56 ratio in your case, but if your looking at street
- ability the 4.11 may be a nice compromise for you.
-
- dennis
-
- ----------
- Posted by: emory!picard.med.ge.com!bednarek (Dennis Bednarek Mfg 4-6971 ~BHOSVWZ#097)
-