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Mag Intake on an ATX

Posted: Sun Aug 20, 2006 1:12 pm
by SolarYNeon
Just before I buy all the parts I want to double check that I will be able to basically just bolt up the mag intake on an ATX (and do the wiring yes) without getting a new TB or anything like that.

Posted: Sun Aug 20, 2006 2:58 pm
by white2000neon
I can see why not. I would try to get a magnum head while your at it to and that should give you a nice little gain in power. Hint hint atx->mtx swap.

Posted: Sun Aug 20, 2006 3:02 pm
by SolarYNeon
Haha never to fear, later in the year im actually going to do the swap, just gotta save two paychecks for the tranny and all the other stuff :)

what tranny would you reccomend the 3.55 or 3.94? :O

Posted: Sun Aug 20, 2006 3:21 pm
by 03blackrt
get the 3.94 transaxle. I still get 31.5 MPG with mine @ 3,500 rpm in 5th (about 75mph).

the magnum intake manifold bolts right up to any sohc head. you will need a replacment bellows tube because the intake to the intake ( :) ) is at a different angle then non-mag mani's

Posted: Sun Aug 20, 2006 3:27 pm
by 03neonRT
How do you manage to get 31mpg? I drive like 80% highway with the cruise set at 75 and i can only manage 28mpg or so...guess your just lucky as hell!

As for which tranny, 3.94 FTW!

Posted: Sun Aug 20, 2006 3:35 pm
by 03blackrt
well, stock i got 28 mpg... mods increased it to 31.5 highway and 25 city.

intake got +1 mpg, cam got +1 mpg, LTH got +1.5 mpg. i was very surprised to see this happen

right after the cam install i got like 10 mpg :shock: but after the computer "learned" the new flow it adjusted and went back up.

Posted: Sun Aug 20, 2006 3:51 pm
by SolarYNeon
03blackrt wrote:

the magnum intake manifold bolts right up to any sohc head. you will need a replacment bellows tube because the intake to the intake ( :) ) is at a different angle then non-mag mani's
For the bellows tube, can I just get some piping and do it myself, or do I absolutely have to purchase the stock mag bellows tube?

Posted: Sun Aug 20, 2006 4:01 pm
by 03blackrt
the bellows tube is different. you could bend your own, buy one, or try and bend/manipulate a non mag bellows tube to fit.

Posted: Sun Aug 20, 2006 4:27 pm
by SolarYNeon
hm any idea on price?

Posted: Sun Aug 20, 2006 4:41 pm
by tamadrumr88
03neonRT wrote:How do you manage to get 31mpg? I drive like 80% highway with the cruise set at 75 and i can only manage 28mpg or so...guess your just lucky as hell!

As for which tranny, 3.94 FTW!
highway ive pulled 36mpg with 3 people in the car, but i also have alot of 'breathing' mods and 15" wheels (stock snowflakes were used, not my track 15's :))


if you can, locate a PT tranny... it has the 3.94 with the .72 5th gear (the rt/acr tranny has .82 5th).... the .72 allows the car to still have great torque throughout gears 1-4 but 5th gear has the theoretical gearing of the 3.55 with .82 5th so you still get good highway mileage

Posted: Sun Aug 20, 2006 5:07 pm
by SolarYNeon
sounds good :)

Posted: Sun Aug 20, 2006 5:15 pm
by 03blackrt
tamadrumr88 wrote:
03neonRT wrote:How do you manage to get 31mpg? I drive like 80% highway with the cruise set at 75 and i can only manage 28mpg or so...guess your just lucky as hell!

As for which tranny, 3.94 FTW!
highway ive pulled 36mpg with 3 people in the car, but i also have alot of 'breathing' mods and 15" wheels (stock snowflakes were used, not my track 15's :))


if you can, locate a PT tranny... it has the 3.94 with the .72 5th gear (the rt/acr tranny has .82 5th).... the .72 allows the car to still have great torque throughout gears 1-4 but 5th gear has the theoretical gearing of the 3.55 with .82 5th so you still get good highway mileage
if think that if i whent about 55 (2,500rpm) i could pull some good mpg numbers

Posted: Mon Aug 21, 2006 7:24 pm
by Mopar00Neon
My car averages 33.3- MPG, I have 15" K1s, iceman, stock magnum exhaust and intake manifold, and an UDP. And of course, a 5spd. My best mileage was about 42mpg, Which I am not sure how I got, other than buring Nevada gas.

Posted: Thu Aug 24, 2006 8:39 pm
by SolarYNeon
Mopar00Neon wrote:My car averages 33.3- MPG, I have 15" K1s, iceman, stock magnum exhaust and intake manifold, and an UDP. And of course, a 5spd. My best mileage was about 42mpg, Which I am not sure how I got, other than buring Nevada gas.
I'm moving to nevada. :wave:

Posted: Thu Aug 24, 2006 9:00 pm
by jonnymopar
03blackrt wrote:...cam got +1 mpg...
Wait... wha? What kind of cam? I've always wanted to just throw the Magnum cam in mine to see what it would do, but I didn't know the consequences.

Posted: Thu Aug 24, 2006 9:36 pm
by 03blackrt
jonnymopar wrote:
03blackrt wrote:...cam got +1 mpg...
Wait... wha? What kind of cam? I've always wanted to just throw the Magnum cam in mine to see what it would do, but I didn't know the consequences.
comp 400 (in a magnum head of course)

and if i put my foot in the tank, i get like 10-15 mpg (depending on how long i go at it :lol: )

Posted: Thu Aug 24, 2006 9:46 pm
by SolarYNeon
ouchies. :( cant afford that. 3 bucks a gallon here. :(

Posted: Thu Aug 24, 2006 10:23 pm
by 03blackrt
SolarYNeon wrote:ouchies. :( cant afford that. 3 bucks a gallon here. :(
Thats why i rarely "put my foot in the tank" :D . I do enjoy the better mpg when im not hard on the throttle tho.