|
Re: How consident shifting without tach ?
[Re: OUTLAWD]
#1555007
12/30/13 02:11 PM
12/30/13 02:11 PM
|
Joined: Jun 2005
Posts: 95
NW INDIANA
ta3834bbl
member
|
member
Joined: Jun 2005
Posts: 95
NW INDIANA
|
Even though I'm don't spend too much time at the track ( although I'd like to ) , I use a tach. I usually have a full exhaust under the car and sometimes have a hard time hearing my engine when staged next to a dragster of other really loud engine. Back when I had a 4 speed, the first time out, I nearly killed the engine because I think I dumped the clutch in my 440 roadrunner at what I would guess was around 1500-2000 rpm. The next time out was next to a green mustang pro-street, gave it some gas and burned the tires through the first 2 gears  . Next run I taped a tack to the steering column..... was much faster on the 3rd pass  That was over 20 years ago, now I'd like to get rid of the monster tach ...
67 Dart GT Convertible 273 68 Barracuda 383 68 Roadrunner 383 4spd 1 '01 Ram 2500 4x4 diesel 2 '02 Rams 1500 4x4's 4.7s 3 '03 Rams 2 1500's 4x4 and 1 2500 hemi 4x4 Oh, and a 03 Grand Cherokee and an '00 durango 
|
|
|
Re: How consident shifting without tach ?
[Re: ta3834bbl]
#1555008
12/30/13 03:56 PM
12/30/13 03:56 PM
|
Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
Too Many Posts
|
OP
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
|
Actually at the starting line I dont need to hear the eng as I just look at the tach there and come up on the converter to about 2000. Thats about the only time I really use the tach in a normal pass. Sometimes I make myself look at the tach so I can see where I am shifting at. When I raced my 340 Dart four speed I usually only used the tach when launching. I would bring the rpm's up to about 5000 as the tree started and then on the last yellow let the clutch out as the gas pedal went to the floor. I was very consisdent in that low 12 high 11 Dart also. Ran 12.17 three passes in a row one night. To bad I rolled that car but I have to admit I like my 63 better. Ron
Last edited by 383man; 12/30/13 03:57 PM.
|
|
|
Re: How consident shifting without tach ?
[Re: ta3834bbl]
#1555009
12/30/13 03:58 PM
12/30/13 03:58 PM
|
Joined: Nov 2006
Posts: 2,255
IL
furious70
top fuel
|
top fuel
Joined: Nov 2006
Posts: 2,255
IL
|
20yrs ago I had a Challenger with a magnum 383, 727, and 3.55's in it. I had big tires on it and didn't have a tach, but it didn't sound like I was going through the traps with much rpm so I tried a pass where I kept it in 2nd through the traps. That did sound more exciting!  Got my timeslip and it was within a 1/10th of the time when shifting to drive! I think mph was about the same too.
70 Sport Fury
68 Charger
69 Coronet
72 RR
|
|
|
Re: How consident shifting without tach ?
[Re: slantzilla]
#1555013
12/31/13 07:41 PM
12/31/13 07:41 PM
|
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
chryco
super stock
|
super stock
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
|
I rarely use my tach , which is making me think about going to one with a playback mode. That way I can see what rpm`s I`m shifting at and going through the eyes at. Definitely slows the car down to shift (`Glide) into high by the redline .At launch I use my MSD launch RPM module set for 5400 and I can feel where peek torque is and shift there. Works every time .02 consistency ! chryco 
Last edited by chryco; 12/31/13 08:12 PM.
Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
|
|
|
Re: How consident shifting without tach ?
[Re: 383man]
#1555015
12/31/13 09:00 PM
12/31/13 09:00 PM
|
Joined: Jan 2004
Posts: 8,251
fredericksburg,va
cudaman1969
master
|
master
Joined: Jan 2004
Posts: 8,251
fredericksburg,va
|
Quote:
Quote:
put a chip in the msd box with the rpm you shift at, when it stutters ,shift, very simple, after awhile you will shift with no delay. anytime you change something you start over the process. by the way the first shift is the most critical for consistent ets.
That would not work for me as I dont have MSD on my car. I use the MP orange ECU and a Mallory dist. But like I said I just seem to always shift when it feels right to me no matter what I drive. Ron
I did the same with my max wedge back in the 70s Ron, never could get a tack to work so i just drove it. when i did get one i didn't use it, when i finally did look i was right on 6800 every time. Never even looked at any gauge except in the pits
|
|
|
Re: How consident shifting without tach ?
[Re: cudaman1969]
#1555016
12/31/13 09:28 PM
12/31/13 09:28 PM
|
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
master
|
master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
|
So, as I read through this thread, I'm suprised by how many guys don't look at their tach during a run. It begs the question: what are you looking at or paying attention to? (I don't mean this condesendingly, I mean it literally). I can understand that at the top end, you're focusing on the opponent, the stripe and the relationship between the two and yourself. but through the gears, what is occupying your attention?
Now, I realize most of you guys have your hands a little more full than me with my 11 second footbrake street-car. but typically, I'm looking downtrack to keep my line, then when I know I'm getting near the top of the gear, I focus in on the tach to make sure I hit the shifter at the exact moment.
(Sorry to Hi-Jack, Ron. But I think the question is relevent to your post.)
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
|
|
|
Re: How consident shifting without tach ?
[Re: StealthWedge67]
#1555017
12/31/13 09:53 PM
12/31/13 09:53 PM
|
Joined: Oct 2003
Posts: 7,506
Az
Crizila
master
|
master
Joined: Oct 2003
Posts: 7,506
Az
|
Quote:
So, as I read through this thread, I'm suprised by how many guys don't look at their tach during a run. It begs the question: what are you looking at or paying attention to? (I don't mean this condesendingly, I mean it literally). I can understand that at the top end, you're focusing on the opponent, the stripe and the relationship between the two and yourself. but through the gears, what is occupying your attention?
Now, I realize most of you guys have your hands a little more full than me with my 11 second footbrake street-car. but typically, I'm looking downtrack to keep my line, then when I know I'm getting near the top of the gear, I focus in on the tach to make sure I hit the shifter at the exact moment.
(Sorry to Hi-Jack, Ron. But I think the question is relevent to your post.)
Reaction time, Boost gauge, fuel pressure gauge, oil pressure gauge, opponent.
Fastest 300
|
|
|
|
|
When you are bracket racing, consistency is everything. I use a shift light. I do set my timing by feel though 
