Im installing a 302 in a 240sx with motor plates and Im looking for facts, advice and opinions on setting the engine back in the chassis. Im wondering if it is worth the work to modify the firewall to set the engine back 3 to 5 inches, maybe more.
This question came up when looking at the clearance for the oil pan in regards to the cross-member and steering rack.
I'm using a 5.0 H.O. which uses a rear sump oil pan because in a fox body Mustang , the steering rack sits on the front of the k member. Well, the 240sx has the rack on the rear of the k member. After some measurements Ive come up with a few options Id be willing to do....
A- use a front sump pan from an older 302/289 and have the engine pretty well centered in the engine bay with no modifications to the firewall
or
B- use the rear sump pan and set the engine back the 3-5 inches and pretty much "notching' the firewall, because I was planning on retaining the stock pedals, master cylinder, steering column and whatever else I'm forgetting.
This is a drag only car, so there doesn't have to be any consideration for the wiper assembly or anything else that would be mounted near or on the firewall. Mainly worried about functionality and safety.
Lets hear your thoughts,
Joe
Setting engine back in the chassis
Moderators: David Lemmond, Dave Morgan
Re: Setting engine back in the chassis
Depends on your racing application. Some class racing does not allow firewall mods...
Trucks are for haulin...
Re: Setting engine back in the chassis
If its just a bracket car I would switch the pan.
- Moparious Maximus
- Posts: 125
- Joined: Mon Oct 05, 2009 6:05 pm
- Location: Iowa
Re: Setting engine back in the chassis
The motor in our car is setback 9.5 inches, we made our own firewall. I think it helps us out, we are moving alot of weight on some pretty small tires and alot of power, and our weight distribution is about 51/49 front to back. The only problem now is on a great track the front end wants to stay up for what seems like forever.
Nostalgia car.
Nostalgia car.
'63 Plymouth, Straight axle, Leaf springs, Drum brakes, 31x10.5wx15 Rears 3215lbs
Best time to date 7.99 @ 170 mph
572" Wedge 8-71 @ 28% OD, ALKY, Glide, Dana
http://www.youtube.com/watch?v=vq-xzFWHtFk
http://www.youtube.com/watch?v=JfyZSw59R_o
Best time to date 7.99 @ 170 mph
572" Wedge 8-71 @ 28% OD, ALKY, Glide, Dana
http://www.youtube.com/watch?v=vq-xzFWHtFk
http://www.youtube.com/watch?v=JfyZSw59R_o
- Carolina Kid
- Posts: 254
- Joined: Sat Jul 26, 2008 10:56 am
Re: Setting engine back in the chassis
what he said.sc racing wrote:If its just a bracket car I would switch the pan.
Re: Setting engine back in the chassis
Thanks for the input guys.
Moparious Maximus, your car sounds bad ass !!!
Moparious Maximus, your car sounds bad ass !!!
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