Re: Shifting a Small Block!
[Re: 10sec.dart]
#2320342
06/13/17 02:08 AM
06/13/17 02:08 AM
|
Joined: Aug 2003
Posts: 43,176 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,176
Bend,OR USA
|
We did that in the bad old days because we could, why do that now if the motor is not still pulling hard at 7000 RPM? Shift it when it quits pulling hard, DO NOT wait for it to nose over
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: Shifting a Small Block!
[Re: Cab_Burge]
#2320371
06/13/17 06:41 AM
06/13/17 06:41 AM
|
Joined: Jan 2003
Posts: 6,142 Melbourne , Australia
LA360
master
|
master
Joined: Jan 2003
Posts: 6,142
Melbourne , Australia
|
My junk has made peak power @6900 rpm, so I imagine I will be. It's going back on the dyno for more testing, I wasn't happy with the manifold, and new headers. The engine is a cast crank 360, so I'm not going to be buzzing it too far past 7K if I don't need to. A factory block will most likely split a bore before it breaks a cap.
Alan Jones
|
|
|
Re: Shifting a Small Block!
[Re: 10sec.dart]
#2320453
06/13/17 10:53 AM
06/13/17 10:53 AM
|
Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
|
Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
|
I used to shift my 340 at 8K, the 360 at 7.2K, the 408 hasn't been to 7K but it's close.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon! 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
|
|
|
Re: Shifting a Small Block!
[Re: 10sec.dart]
#2320819
06/13/17 10:31 PM
06/13/17 10:31 PM
|
Joined: Nov 2006
Posts: 733 jacksonville,FLORIDA
slammedR/T
super stock
|
super stock
Joined: Nov 2006
Posts: 733
jacksonville,FLORIDA
|
Turn mine to 7800 rpm on the bottle, main stud girdle, half fill, stock magnum block, zero issues.
2000 Dakota R/T, 408 magnum, 727, Indy heads 1000cfm 4150 carb, 93 octane fuel. motor; 10.258 @ 132.78 200 shot; 9.262 @ 144.69 racemagnum
|
|
|
Re: Shifting a Small Block!
[Re: 10sec.dart]
#2320923
06/14/17 01:36 AM
06/14/17 01:36 AM
|
Joined: Dec 2005
Posts: 11,566 Fulton County, PA
CMcAllister
Mr. Helpful
|
Mr. Helpful
Joined: Dec 2005
Posts: 11,566
Fulton County, PA
|
I ran a stock bottom end 340 to 76-7800 every pass for years. Stock crank 360 with good rods to 7200. I wouldn't do it for hundreds of runs. Have to maintain them.
If the results don't match the theory, change the theory.
|
|
|
|
|