Krossmember Question ..

Heads, valves, pistons, rods, crankshaft, etc...

Moderators: Helpinators, Moderators

Post Reply
N1446
Second Gear
Posts: 279
Joined: Tue Oct 14, 2008 6:33 am
Location: Tantallon, NS

Krossmember Question ..

Post by N1446 »

i f i m installing a na motor in a SS chassi , Must i change out the turbo crossmember as well for the NA manifold to work :?
N1446 Brutus
91 Legacy SS 5mt 2.5GT Swap
Legacy GT Suspension, 16" Fozzy Wheels, 2.5RS OBX EL Headers, Gutted Mid-Pipe, Subaru Catback c/w AWD BABY !
evolutionmovement
Knowledgeable
Knowledgeable
Posts: 9809
Joined: Mon Jun 16, 2003 11:20 pm
Location: Beverly, MA

Post by evolutionmovement »

To be clear, you're converting a turbo car to N/A?

Then, yes, or you can cut a notch in the somewhat valuable crossmember's extended wall on the right side for exhaust clearance or have an exhaust shop fab up a new pipe on the right side to go under the wall and up to the manifold. Or, you can use the turbo exhaust and have a pipe fabbed to take the place of the turbocharger.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
wtdash
Fifth Gear
Posts: 2349
Joined: Fri May 04, 2007 4:09 pm
Location: N. ID

Post by wtdash »

I read it that they're putting an NA engine into an SS chassis (I'm doing the same - long, boring story).

See evolutionmovement's post below.

Good luck.
Last edited by wtdash on Fri Jun 12, 2009 6:44 pm, edited 3 times in total.
Turbo Subies:
'87 GL-10 Turbo - SOLD
'90 BJ EJ22T/DOHC & 5speed swap - SOLD
'04 FXT, Forged internals, VF39, STI TMIC, Cobb AP- SOLD
'93 Legacy SS - 5-speed, SOLD :-(
'02 WRX -SOLD
'96 BD-turbo'd-SOLD
'98 SF - NA-T
evolutionmovement
Knowledgeable
Knowledgeable
Posts: 9809
Joined: Mon Jun 16, 2003 11:20 pm
Location: Beverly, MA

Post by evolutionmovement »

No it won't. The turbo x-member has a wall that extends lower on the passenger side to make up for loss of rigidity the up pipe clearance pocket would have left. The front horizontal longitudinal pipe on the N/A exhaust wants to go through this wall. I have an example of it in my garage and is a big reason the car's been parked for almost 4 years. The amount of space needed is more than an inch.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
wtdash
Fifth Gear
Posts: 2349
Joined: Fri May 04, 2007 4:09 pm
Location: N. ID

Post by wtdash »

Craptastic....

Thanks for the head's up.

(Note to self: Subarus are 'almost' like Legos.)

Edit: Besides the crossmember, the front SS/Tubo's swaybar is lower on the passenger side (to fit under the crossmember?) and may also get in the way.

The NA's swaybar fits in the turbo 's crossmember w/out issue...@ least on my '90 swap.
Last edited by wtdash on Sat Jun 13, 2009 5:48 am, edited 2 times in total.
Turbo Subies:
'87 GL-10 Turbo - SOLD
'90 BJ EJ22T/DOHC & 5speed swap - SOLD
'04 FXT, Forged internals, VF39, STI TMIC, Cobb AP- SOLD
'93 Legacy SS - 5-speed, SOLD :-(
'02 WRX -SOLD
'96 BD-turbo'd-SOLD
'98 SF - NA-T
evolutionmovement
Knowledgeable
Knowledgeable
Posts: 9809
Joined: Mon Jun 16, 2003 11:20 pm
Location: Beverly, MA

Post by evolutionmovement »

I was a little surprised myself. And annoyed.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
Post Reply