Re: Is the engine centered in the chassis ?
[Re: hemienvy]
#2856057
12/06/20 02:04 PM
12/06/20 02:04 PM
|
Joined: Jan 2003
Posts: 2,926 A shed in England
Tig
master
|
master
Joined: Jan 2003
Posts: 2,926
A shed in England
|
This would be E-body, big block, and normal engine mounts, K-member.
How about the tranny mount, that looks centered to me (?), I guess. No, it's over to the pass side by about an Inch, Plays havoc with my OCD now I've cut a hole in the hood for the T/R. I don't think the trans is central either
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
|
|
|
Re: Is the engine centered in the chassis ?
[Re: Cab_Burge]
#2856102
12/06/20 03:26 PM
12/06/20 03:26 PM
|
Joined: Dec 2005
Posts: 11,621 Fulton County, PA
CMcAllister
Mr. Helpful
|
Mr. Helpful
Joined: Dec 2005
Posts: 11,621
Fulton County, PA
|
The driveline - center of the crankshaft bolt to the center of the pinion shaft - should be straight, as far as side to side, and parallel to the chassis centerline. The A Body stuff I've dealt with was like an 1 1/4". And I believe that number holds pretty close for the other chassis. Tolerances being what they were, that 1 1/4" could be +/- 1/8 or more. Drop stringlines and get it as close as you can.
If you're using all OE mounting, not much you can do with it. Maybe fudge the trans one way or the other.
If the results don't match the theory, change the theory.
|
|
|
Re: Is the engine centered in the chassis ?
[Re: hemienvy]
#2856152
12/06/20 05:31 PM
12/06/20 05:31 PM
|
Joined: Jan 2003
Posts: 31,050 Oregon
AndyF
I Win
|
I Win
Joined: Jan 2003
Posts: 31,050
Oregon
|
This would be E-body, big block, and normal engine mounts, K-member.
How about the tranny mount, that looks centered to me (?), I guess. Mopar cars are offset. The actual amount of offset depends on make, model and year. There is no one number for all cars. TTI has the best list of offsets that I've seen published on their website. I use the TTI offset guide when I design parts.
|
|
|
Re: Is the engine centered in the chassis ?
[Re: AndyF]
#2856154
12/06/20 05:39 PM
12/06/20 05:39 PM
|
Joined: Feb 2004
Posts: 34,928 S.E. South Dakota !
bigdad
Still Posting A Lot
|
Still Posting A Lot
Joined: Feb 2004
Posts: 34,928
S.E. South Dakota !
|
I centered my motor in my 64 Belvedere after a few "friends " badgered me into .. sounded easy but, its not .
For every action, there is a opposite and equal reaction
Sir Isaac Newton
Last edited by bigdad; 12/06/20 05:40 PM.
The lips of fools bring them strife, and their mouths invite a beating.Proverbs 18:6
|
|
|
Re: Is the engine centered in the chassis ?
[Re: AndyF]
#2856252
12/06/20 09:02 PM
12/06/20 09:02 PM
|
Joined: Jul 2018
Posts: 170 Sticky South
Rodenteliminator
member
|
member
Joined: Jul 2018
Posts: 170
Sticky South
|
How much offset would one dare go with if you haven’t started the process of engine position forward or aft or offset with a front and mid plate on a Bbody and a low deck wedge?Rearend has not been spec,d either so the slate is clean. Thanks DK I should add headers will not an issue as they will be fender well headers.
Last edited by Rodenteliminator; 12/06/20 09:14 PM.
Sorry honey I spent the rent
|
|
|
Re: Is the engine centered in the chassis ?
[Re: Rodenteliminator]
#2856269
12/06/20 09:40 PM
12/06/20 09:40 PM
|
Joined: Jan 2003
Posts: 31,050 Oregon
AndyF
I Win
|
I Win
Joined: Jan 2003
Posts: 31,050
Oregon
|
How much offset would one dare go with if you haven’t started the process of engine position forward or aft or offset with a front and mid plate on a Bbody and a low deck wedge?Rearend has not been spec,d either so the slate is clean. Thanks DK I should add headers will not an issue as they will be fender well headers. If it is a stock floor car with a stock firewall then I'd put the engine and trans in the factory location. If it is a tube chassis car then put stuff where you want it.
|
|
|
Re: Is the engine centered in the chassis ?
[Re: AndyF]
#2856294
12/06/20 10:30 PM
12/06/20 10:30 PM
|
Joined: Feb 2004
Posts: 34,928 S.E. South Dakota !
bigdad
Still Posting A Lot
|
Still Posting A Lot
Joined: Feb 2004
Posts: 34,928
S.E. South Dakota !
|
hings that you never even think of , get in the way .. oil filter vs lower radiator hose , I had to fight the throttle linkage cause then it hit firewall , headers where a S ob .. i had to make a slip tube on two tubes , thats just a few things , it was a pita
The lips of fools bring them strife, and their mouths invite a beating.Proverbs 18:6
|
|
|
Re: Is the engine centered in the chassis ?
[Re: second 70]
#2856543
12/07/20 01:45 PM
12/07/20 01:45 PM
|
Joined: Dec 2005
Posts: 11,621 Fulton County, PA
CMcAllister
Mr. Helpful
|
Mr. Helpful
Joined: Dec 2005
Posts: 11,621
Fulton County, PA
|
When we did our chassis car, the driveline was put in 1" to the right. A little extra room for the driver. Desired corner weights and balance easy to achieve with minimal preload or spring manipulation from neutral. It worked well. It wasn't a big power deal. If it is i would want the stuff centered.
Stock floor, stock trans mount, stock K frame, steering, etc, I would put it in factory location. Super Stock Hemis are done that way and they work just fine. The whole engine/trans assembly can be moved back and/or down with some changes to the trans mount, if using motor plates. That would be more beneficial than spending a bunch of effort getting everything in the center. Removable/custom trans tunnel is likely needed to accomplish that. Headers on the left side with stock steering is always a challenge.
If the results don't match the theory, change the theory.
|
|
|
Re: Is the engine centered in the chassis ?
[Re: CMcAllister]
#2856561
12/07/20 02:03 PM
12/07/20 02:03 PM
|
Joined: Jan 2003
Posts: 19,376 Las Vegas
Al_Alguire
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 19,376
Las Vegas
|
As stated factory bias is about 1.5" to the pass side. Footwell, steering box clearance is why as Ive heard both.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
|
|
|
|
|