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Re: Drag Starts
Phil Wilson
Hi Tom,
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Ed R. seems like a nice guy, but his posts perpetuate a rather common misconception, namely that acceleration is maximized by shifting to keep the engine close to its torque peak. In fact, you want to maximize torque at the rear wheel, after the multiplying effect of the transmission. I don't have the gear ratios or an S4 torque curve in front of me, but the seat of my pants tells me I'd do better shifting closer to redline. The difference isn't great, I think upshifting from 3rd to 4th at 6300 will leave the engine at about 4500. Maybe I'll do the arithmetic when I get home. Regards, Phil -----Original Message----- |
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Re: Drag Starts
Hi Phil,
--- In PacNW928@..., "Phil Wilson" <pwilson@a...> wrote: Anybody have any tips for a 5-spd without limited-slip? Simplydumping the clutch high in the power band will really smoke the passenger-siderear tire, but probably won't move the car very fast....100 MPH. If true, that should pose the question of whether it's better toover-rev in 3rd at the end, or risk a shift into 4th. Anybody tried thisbefore? Just a thought, the S4 should be making max torque (ft/lbs is what really counts right!?) at around 3500 rpm. Depending on how close 3rd and 4th are (ratio?) you may want to shift a little early to keep 4th at around 3500 to 4000 rpm. How quick can you shift without grinding ;-)?? Anyone with further thoughts on this as I am totally unqualified to answer this ( but did anyway). Didn't Ed R. describe something similar on the Rennlist a while back (about shift points and RPM drops during a DE)????? Later Tom midlman@... 87S4 Auto |
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Drag / G-tech
Hey,
All this talk of the bracket drag has me thinking... Does anyone have a G-Tech so we can get some comparative data? The G-Tech is one of those gadgets I would love to get sometime and would like some real data to see if it is actually accurate. Anyone who has one and is not going to the drags willing to let me borrow it for a day??? ;-0 Later, Tom midlman@... 87S4 |
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Re: 928 for sale
Oscar Munoz
Would that be considered a hybrid? Lemme get Jim Viglietta's opinion before
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I make this decision. Jim, you out there? -Oscar -----Original Message-----
From: Adam Birnbaum [mailto:adamb777@...] Sent: Wednesday, May 24, 2000 2:43 PM To: PacNW928@... Subject: Re: [PacNW928] 928 for sale Okay, so maybe buy the S4 and transfer the powerplant into your '81! or not :). Maybe you could arrange a test drive for June 25th, and then bring the S4 out to the shark drags. Oh Yeah! -Adam ---------- From: Oscar Munoz <OscarM@...>------------------------------------------------------------------------ ------------------------------------------------------------------------Savings + service + convenience = beMANY! ------------------------------------------------------------------------ ------------------------------------------------------------------------Failed tests, classes skipped, forgotten locker combinations. ------------------------------------------------------------------------------------------------------------------------------------------------ Old school buds here: ------------------------------------------------------------------------ To unsubscribe from this group, send an email to: PacNW928-unsubscribe@... |
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Re: 928 for sale
Adam Birnbaum
Okay, so maybe buy the S4 and transfer the powerplant into your '81!
or not :). Maybe you could arrange a test drive for June 25th, and then bring the S4 out to the shark drags. Oh Yeah! -Adam ---------- From: Oscar Munoz <OscarM@...>------------------------------------------------------------------------ ------------------------------------------------------------------------Savings + service + convenience = beMANY! ------------------------------------------------------------------------ ------------------------------------------------------------------------Failed tests, classes skipped, forgotten locker combinations. ------------------------------------------------------------------------ |
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Re: 928 for sale
Oscar Munoz
Adam,
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Hummm... lemme see, an 81 928 with 167HP.....hmmmm, towards an 89 S4, hmmmmm.... you're right it's a tough one! :-) -Oscar 81 auto with 167HP at the NW dyno day (with tail still between my legs) -----Original Message-----
From: Adam Birnbaum [mailto:adamb777@...] Sent: Wednesday, May 24, 2000 10:58 AM To: PacNW928@... Subject: Re: [PacNW928] 928 for sale Oscar! No way! Tell me your not going to let that chiffon white beauty go for "just" another black S4? -Adam ---------- From: Oscar Munoz <OscarM@...>------------------------------------------------------------------------ Failed tests, classes skipped, forgotten locker combinations. Remember the good 'ol days ------------------------------------------------------------------------ To unsubscribe from this group, send an email to: PacNW928-unsubscribe@... |
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Re: 928 for sale
Adam Birnbaum
Oscar!
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No way! Tell me your not going to let that chiffon white beauty go for "just" another black S4? -Adam ---------- From: Oscar Munoz <OscarM@...> |
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Re: Drag Starts
Phil Wilson
Anybody have any tips for a 5-spd without limited-slip? Simply dumping the
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clutch high in the power band will really smoke the passenger-side rear tire, but probably won't move the car very fast.... By the book, my '87 S4 *ought* to be good for about 14 seconds at 100 MPH. If true, that should pose the question of whether it's better to over-rev in 3rd at the end, or risk a shift into 4th. Anybody tried this before? How many runs will we get? Any opportunity for practice? Time for some covert, midnight experimentation? -----Original Message----- |
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Re: Drag Starts
In a message dated 5/24/00 10:53:25 AM Pacific Daylight Time,
pwilson@... writes: Anybody have any tips for a 5-spd without limited-slip? Simply dumping thein 3rd at the end, or risk a shift into 4th. Anybody tried this before?Hi Phil, Never, ever, having done this before, I'll chime in as an expert. I think the main idea on these bracket drags is consistency rather than absolute best time. It may work best for consistency to not rev high enough to really smoke the tires, but just enough to get a good start without a serious bog. Maybe rev to only 1500 - 2000 and try a moderate clutch dump and fully open the throttle. Also try differential tire pressure to keep the right rear from spinning. I'd suggest about 4 psi less in the right rear to start with and see what happens. Maybe someone who knows what they are talking about can help. Louis Ott |
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Re: 928 for sale
Hi Rob,
Im not sure what your customer was thinking, but I suspect he would be considering the KBB Retail value at around $19K rather than the KBB Trade in value of $13500 as you stated. Then again, I won't tell if you don't ;-). Later, Tom midlman@... 87S4 --- In PacNW928@..., huntnphool@a... wrote: Hello all,for his sons education. It is a 89 S4. Black on Black/Auto with 42,000and has a $5000.00 sound system and alarm. He only wants blue book forit so I looked it up and found out that high book is $13,500.00. Hedeal. I just purchased a new Ford Excursion or I would be all over it. My |
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Re: Tune Ups
Hi Louis,
I found that you can do a full rpm run on an auto 928 bydisconnecting the throttle position cable to the trans and pulling the kick downrelay. I've never tried it so I'm not certain how you get it in the gear youwant. Once it is in that gear though you can floor the accelerator and itwon't kick down to a lower gear. This method was related to me by Marc Thomas(Devek). I have thought about disconnecting the kickdown, but not the throttle position cable. Does the TP cable actutuate a tranny kickdown also, (maybe used for upshifts??) or is the kickdown switch responsible for downshifts? Kind of redundant if they both do the same job?? Anyway on a seperate topic, hows the "DASTEK" working out?? Later, Tom midlman@... |
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Re: 928 for sale
Oscar Munoz
Rob,
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Where is this car located? -Oscar -----Original Message-----
From: huntnphool@... [mailto:huntnphool@...] Sent: Tuesday, May 23, 2000 8:54 PM To: PacNW928@... Subject: [PacNW928] 928 for sale Hello all, I have a customer of mine that is selling his shark to get money for his sons education. It is a 89 S4. Black on Black/Auto with 42,000 miles on it. He has several cars so it was only driven on sunny weekends. I know from experience that the car is in great shape, and has a $5000.00 sound system and alarm. He only wants blue book for it so I looked it up and found out that high book is $13,500.00. He would probably take anything close to that. IMHO, it is a great deal. I just purchased a new Ford Excursion or I would be all over it. My wife says thats enough toys for now. If anyone is seriously interested, email me back and I can put you in touch with him. Rob Fossett ------------------------------------------------------------------------ Savings + service + convenience = beMANY! ------------------------------------------------------------------------ To unsubscribe from this group, send an email to: PacNW928-unsubscribe@... |
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Re: Tune Ups
In a message dated 5/24/00 7:45:03 AM Pacific Daylight Time,
midlman@... writes: I have thought about disconnecting the kickdown, but not the throttleHi Tom, I think the TP cable determines at what speed the trans will do an upshift. You have noticed that at small throttle openings the upshifts come early while at larger throttle openings, but less than WOT, the upshifts come later. It is the TP cable that controls the trans to do this. At WOT, you also have the kickdown switch which forces a downshift. It may be that with the TP cable and kickdown both dasabled, you could have the trans selector in "2", or "3", and the trans would quickly shift to 2nd or 3rd and just stay there when you opened the throttle wide. You'd have to experiment a little. Don't think you would hurt anything. The Dastek is working fine, although I have it disconnected now to troubleshoot another problem. The engine quits intermittently. The ground from the LH (fuel injection) computer that keeps the fuel pump relay energized is going away, and that stops the engine instantly. I don't know why this is happening yet. I got a "loaner" LH computer from Dave Roberts and it has not stopped with his computer, but I'll have to run it a couple hundred miles to be sure. With my LH computer, I can sometimes go for a hundred miles and it won't quit. Other times (yesterday) it will quit 4 or 5 times within 100 feet. Oh, the joy of it all<g>. Louie |
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Re: Drag Starts
ADAM BIRNBAUM
Hey Chris,
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Have you been power braking on your starts? I don't know if I'm going to load the tranny or not, or shift manually or just leave it in "D". I'll probably do one dial in run with the full bore power brake/ manual shift just to see what happens, and from there on out just gas it and leave it in "D" for consistency. -Adam ----- Original Message -----
From: Chris Ford <cford@...> To: PacNW928 (E-mail) <PacNW928@...> Sent: Tuesday, May 23, 2000 4:01 PM Subject: [PacNW928] Drag Starts Come on then who's been practising ??? Well I have been playing a littlea decent surface, Pirelli tires don;t squeal much so audibly there isn'tmuch of a clue to lost traction. Lunch time I was coming round a (slow) sharpin stealth mode.was anyone in the passenger seat. Decided to make a quick getaway from thestop light and I was watching the rev counter checking to see what I waspulling in first gear with the selector in D. Anyway by the time I was on the wayto the redline in 2nd I remembered the passenger ooops......be useful for measuring 0-100 times (+/- 0.5s).lot of black deposit all the way down the strip. I presume this would aid a |
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Re: Tune Ups
ADAM BIRNBAUM
Hey Tom,
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I'd be up for a post tune up dyno, what the heck. -Adam ----- Original Message -----
From: <midlman@...> To: <PacNW928@...> Sent: Tuesday, May 23, 2000 1:55 PM Subject: [PacNW928] Re: Tune Ups Hey Adam, |
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928 for sale
Hello all,
I have a customer of mine that is selling his shark to get money for his sons education. It is a 89 S4. Black on Black/Auto with 42,000 miles on it. He has several cars so it was only driven on sunny weekends. I know from experience that the car is in great shape, and has a $5000.00 sound system and alarm. He only wants blue book for it so I looked it up and found out that high book is $13,500.00. He would probably take anything close to that. IMHO, it is a great deal. I just purchased a new Ford Excursion or I would be all over it. My wife says thats enough toys for now. If anyone is seriously interested, email me back and I can put you in touch with him. Rob Fossett |
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Re: Tune Ups
tmm
Hey, looks like we may need to arrange for a second dyno day!!!!
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I would definitely like to do the tune-up and then re-check on the dyno. Also would like to find a way to get a full run for the auto's. Here's an opportunity for those who couldn't make the last one. I would also like to see a header equipped S4 (Don H) and a chipped S4 (Ray H). Lets keep this thread going..... Later, Tom midlman@... 87S4 "redinger@..." wrote: Tom, |
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Re: Tune Ups
Tom,
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I'm game. The car is together, ready, willing, and able. Terry midlman@... wrote: Hey Adam, |
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Re: Tune Ups
I also have previously damaged the lip on an upper ball joint by using a
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pickel fork. My advice is never pound on our sharks with a pickel fork. Whether you do a group buy or individual purchase of the seperator tool, it will be money well spent. Terry Redinger '89 S4 auto midlman@... wrote: Hi Adam,As far as the coils are concerned, I don't know the protocol totest |
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Re: Tune Ups
In a message dated 5/23/00 8:48:35 PM Pacific Daylight Time,
midlman@... writes: Hey, looks like we may need to arrange for a second dyno day!!!!to see a header equipped S4 (Don H) and a chipped S4 (Ray H). Lets keep thisTom, I found that you can do a full rpm run on an auto 928 by disconnecting the throttle position cable to the trans and pulling the kick down relay. I've never tried it so I'm not certain how you get it in the gear you want. Once it is in that gear though you can floor the accelerator and it won't kick down to a lower gear. This method was related to me by Marc Thomas (Devek). Louie |
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