|
Re: Whats holding me in the 109 MPH range
[Re: mrart01]
#456650
09/03/09 07:01 PM
09/03/09 07:01 PM
|
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
Maybe I didn't read the whole post but has anyone suggested valve springs? Major part of being held back. I had a w2 340 590 cam stock ports, could not get past 110 mph 12.10 et . Changed the springs and went 11.5 can't remember the mph but you should definately check your spring pressure 
Were they Mopar springs... I had 2 sets on my W-2s
that were junk... valve float from the moment I'd let
go of the button(just didnt know it)
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: Von]
#456651
09/04/09 08:26 AM
09/04/09 08:26 AM
|
Joined: Nov 2007
Posts: 5,337
the house on the left.
cogen80
master
|
master
Joined: Nov 2007
Posts: 5,337
the house on the left.
|
Quote:
Quote:
[unless it's a real street car, a nice 4500 converter would do wonders but it'll be crap for the street.
Why 
Sorry to get offtrack but why do most people say a high stall converter is junk on the street???
The TA 8inch (5k flash off the footbrake)in my stuff drives around town very close to a stock converter. In fact the guy at the local muffler shop backed my car off of the rack and asked me if I had a stock 'vert in it. No, I replied, just a quality converter.
they say it because they are stuck in the past.
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: 65cuda]
#456652
09/04/09 11:01 AM
09/04/09 11:01 AM
|
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
Dodgem
master
|
master
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
|
Post your complete 1/4 breakdown 60" 330" 660" and MPH 1000" and 1/4 time and mph!
Also what is your rev limiter chip?
Last edited by Dodgem; 09/04/09 11:06 AM.
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: viperblue72]
#456654
09/24/09 06:13 PM
09/24/09 06:13 PM
|
Joined: Feb 2003
Posts: 515
Dayton, Ohio
65cuda
OP
mopar addict
|
OP
mopar addict
Joined: Feb 2003
Posts: 515
Dayton, Ohio
|
Finally have some new info. i ran the car a couple times. i got a new best but still not much on the top end. most of my improvment has been before the 1/8. 11.84@110.09 heres my break down also i dropped the exhaust system and ran open headers 60' 1.58 330 4.73 1/8mph 90.7 1/8 et 7.43 1/4 et 11.84 1/4 mph 110.09 now i went last thur. to test and tune and broke a u-joint on 2nd run with new super victor intake so no data with with that. the u-joint has been a problem all season i had 2 get loose and this was the second pass on a new one. that was last thur. i have the drivshaft repaired and upped it too the dana size joint with the u-bolts holding it in.
65 Cuda 360,3.23 SG-13.97 @99.4, 88 D100, 2000 Kota Qcab, 71 Duster 416 11.84 @110., 73 Imp ,(2)72 & (1)71 Dart Swingers
GarysMocars Legendary Dealer
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: 65cuda]
#456655
09/24/09 06:34 PM
09/24/09 06:34 PM
|
Anonymous
Unregistered
|
Anonymous
Unregistered
|
Just for comparison my 416 ran 11.0's@120.00 through the exhaust '70 street duster...and with the 360 11.70's..so i think you've got more there..
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: 65cuda]
#456656
09/24/09 06:56 PM
09/24/09 06:56 PM
|
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
Finally have some new info. i ran the car a couple times. i got a new best but still not much on the top end. most of my improvment has been before the 1/8. [Email]11.84@110.09[/Email] heres my break down also i dropped the exhaust system and ran open headers
60' 1.58
330 4.73
1/8mph 90.7
1/8 et 7.43
1/4 et 11.84
1/4 mph 110.09
now i went last thur. to test and tune and broke a u-joint on 2nd run with new super victor intake so no data with with that. the u-joint has been a problem all season i had 2 get loose and this was the second pass on a new one. that was last thur. i have the drivshaft repaired and upped it too the dana size joint with the u-bolts holding it in.
Have you checked your pinion angle.... that'll break
U-joints .... also you should have the trans checked
if you blew the U-joint(over running clutch... sprag)
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: MR_P_BODY]
#456657
09/24/09 07:01 PM
09/24/09 07:01 PM
|
Joined: Feb 2003
Posts: 515
Dayton, Ohio
65cuda
OP
mopar addict
|
OP
mopar addict
Joined: Feb 2003
Posts: 515
Dayton, Ohio
|
well i think everything is in the stock location but i did measure it while the shaft was out and i have pinion 4 degrees up and tailshaft 4 degrees down. it has a bolt in sprag. i ran it on jackstands today it sounded and shifted normal. can i tell if something happend to the sprag?
65 Cuda 360,3.23 SG-13.97 @99.4, 88 D100, 2000 Kota Qcab, 71 Duster 416 11.84 @110., 73 Imp ,(2)72 & (1)71 Dart Swingers
GarysMocars Legendary Dealer
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: 65cuda]
#456658
09/24/09 08:10 PM
09/24/09 08:10 PM
|
Joined: Feb 2005
Posts: 4,324
Prospect, PA
BSB67
master
|
master
Joined: Feb 2005
Posts: 4,324
Prospect, PA
|
Quote:
Have you checked your pinion angle.... that'll break
U-joints ....
 Something is not right if this is a repeat problem.
Also, have you monitored the fuel pressure through the traps yet?
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: 65cuda]
#456659
09/24/09 08:36 PM
09/24/09 08:36 PM
|
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
well i think everything is in the stock location but i did measure it while the shaft was out and i have pinion 4 degrees up and tailshaft 4 degrees down. it has a bolt in sprag. i ran it on jackstands today it sounded and shifted normal. can i tell if something happend to the sprag?
Currently you are at 0 pinion angle.... roll the
pinion down a few degrees.... about 4* - 5*
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: MR_P_BODY]
#456660
09/24/09 09:04 PM
09/24/09 09:04 PM
|
Joined: Feb 2003
Posts: 515
Dayton, Ohio
65cuda
OP
mopar addict
|
OP
mopar addict
Joined: Feb 2003
Posts: 515
Dayton, Ohio
|
Mr P are u sure about that? i was reading in the tech. archives the 0 is what u want. they say to subtract the #s and u should get 0.
i haven't checked the fuel pressure. i have 3/8 lines all the way and a carter street/strip pump. it doesn't seem to be cutting out or surging. it bounces around 7-8 at idle.
Moper i never thought about lowering the the timming that low but i will try that if i ever get to run anymore this year. i did try to build a quench motor. it was 0 deck pistons with a 21cc dish to keep it pump gas.
65 Cuda 360,3.23 SG-13.97 @99.4, 88 D100, 2000 Kota Qcab, 71 Duster 416 11.84 @110., 73 Imp ,(2)72 & (1)71 Dart Swingers
GarysMocars Legendary Dealer
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: 65cuda]
#456662
09/24/09 09:19 PM
09/24/09 09:19 PM
|
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
Mr P are u sure about that? i was reading in the tech. archives the 0 is what u want. they say to subtract the #s and u should get 0.
i haven't checked the fuel pressure. i have 3/8 lines all the way and a carter street/strip pump. it doesn't seem to be cutting out or surging. it bounces around 7-8 at idle.
Moper i never thought about lowering the the timming that low but i will try that if i ever get to run anymore this year. i did try to build a quench motor. it was 0 deck pistons with a 21cc dish to keep it pump gas.
Your pinion is parallel with the tailshaft which
equals 0... you want 0 when under full load thats
why you roll it down 4-5 degrees on a leaf car so
it can wind up under load to become 0 pinion
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: 65cuda]
#456663
09/24/09 09:22 PM
09/24/09 09:22 PM
|
Joined: Nov 2004
Posts: 1,745
Maryland
340_Dart
top fuel
|
top fuel
Joined: Nov 2004
Posts: 1,745
Maryland
|
Quote:
i haven't checked the fuel pressure. i have 3/8 lines all the way and a carter street/strip pump. it doesn't seem to be cutting out or surging. it bounces around 7-8 at idle.
Maybe i just got a lemon, but i had one of those carter street/strip mechanical pumps on my 416 in my dart, 3/8 line and 3/8 pickup in the tank, and the best it would muster was a 12.20 @ 110. The car never shut off, and i couldn't feel it laying over but it was. The way i figured it out was with a mechanical fuel gauge. I'd have 7lbs out of the hole and it'd slowly drop to 3 lbs by the time i hit the traps.
Anyhow, pitched the carter mechanical, put on a holley blue pump and regulator, and went 11.60 @ 116 the next time out! might want to try it! -Andy
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: Hemiroid]
#456664
09/24/09 09:22 PM
09/24/09 09:22 PM
|
Joined: Feb 2003
Posts: 515
Dayton, Ohio
65cuda
OP
mopar addict
|
OP
mopar addict
Joined: Feb 2003
Posts: 515
Dayton, Ohio
|
Yes it's leaf springs that i added a couple of springs to each side. i put 3 extra clamps on them today just to make sure they weren't wrapping. it also says in the archives that for drag racing it should 2*. so i was looking arong town to see if anybody had the shims that go under the springs. haven't found any yet. got some more places to check tomorrow.
Anybody know if i will need to take the tranny out to check sprag. it worked ok on the jack stands.
65 Cuda 360,3.23 SG-13.97 @99.4, 88 D100, 2000 Kota Qcab, 71 Duster 416 11.84 @110., 73 Imp ,(2)72 & (1)71 Dart Swingers
GarysMocars Legendary Dealer
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: 65cuda]
#456666
09/24/09 10:18 PM
09/24/09 10:18 PM
|
Joined: Aug 2003
Posts: 43,368
Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,368
Bend,OR USA
|
You should have a minimum of - 5 degrees difference between the drive shaft and the pinon on a leaf spring car being raced at the drags at static ride hieght and weight with the driver in the seat with the suspenion loaded like it is sitting still, not up against the converter making the chassis preload  I'm glad you made some improvements, to bad about the broken U joint. Take the trans out and have it check by a competent shop before it hurts you or someone else  MR Gasket sells leaf spring shims, check with Summit or Jegs. it is really better to take the old perches off of the rear end housing and put a new set on and set the pinion angle before you tack weld them to the housing and then remove the housing to have them welded on all the way, add a brace across the top of the housing and (1.5x.125 thick or what ever size you want to use) onto the front and rear of the new spring perches also. IHTMS 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: Whats holding me in the 109 MPH range
[Re: Cab_Burge]
#456667
09/24/09 10:35 PM
09/24/09 10:35 PM
|
Joined: Feb 2003
Posts: 515
Dayton, Ohio
65cuda
OP
mopar addict
|
OP
mopar addict
Joined: Feb 2003
Posts: 515
Dayton, Ohio
|
Thanks Cab so u are saying that even if the tranny seems fine it might still have a broken sprag. that will let loose sometime.
Mr. P i have read everything i can find about the pinion angle. so it says they should be 0 but you plan on spring wrap and u place the pinion down enough to wrap back to 0. because something is wrong. i now i have a stonger u-joint now but i feel there is a cause and i am trying to figure that out.
65 Cuda 360,3.23 SG-13.97 @99.4, 88 D100, 2000 Kota Qcab, 71 Duster 416 11.84 @110., 73 Imp ,(2)72 & (1)71 Dart Swingers
GarysMocars Legendary Dealer
|
|
|
|
|
