Do 2v 4.6's in the 96-98 have more HP potential than a 5.0?
- Thread starter Pokageek
- Start date
The info above the pic says ... cammed, stock head PI
but
The info below the pic says ... stock cam, LT, stg 2 ported heads
I guess I'm lost and need a bit of enlightenment
Grady
first one:
aftermarket cams (not sure on specs, just know that they were somewhat expensive), stock PI heads (no work done)
second setup:
stock cams, LTs, Stage 2 ported PI heads
sorry I can't be more specific...I'm not knowledgeable with the 4.6 crowd. One thing I found out is that a lot of people like to post their dyno results without actually putting sheets up
It does appear with cams, headwork and LTs they can be easily over 300RWHP though...
we are comparing 2V to 5.0.
no one is going to argue that 4v cobra engines have excellent power compared to a relatively stock 5.0
For my way of thinking which is what I based my combo goals around
I would ask that question like this
How soon does yours put up 300 pounds
For a street car ... torque is where its at
and
I just ain't gonna wait for it
Thats why its so much fun to drive
Big Blocks
KB Combos
etc
because they make ...........
Lots of tq and its there in spades at low and mid range
Grady
blksn955.o
Founding Member
Thats why I love the bottle, its there when you want it to be INSANE. 100hp might make 85-100 rwhp but make 125-140 extra ftlbs over n/a. Feels like the motor wants to jump out ahead of the car.
It is deff. crack for the car and gearhead.
It is deff. crack for the car and gearhead.
Well, I meant taht my torque is spot on with that 4.6. I don't have anything out of the ordinary of any other H/C/I. So my point is that there is relatively no difference in the engines and their low end comparetively speaking. So the fact that it hits 300FT pds at 3750 is so close to ours that it is negligable... Now as tostock for stock, I dunno..
first one:
aftermarket cams (not sure on specs, just know that they were somewhat expensive), stock PI heads (no work done)
second setup:
stock cams, LTs, Stage 2 ported PI heads
sorry I can't be more specific...I'm not knowledgeable with the 4.6 crowd. One thing I found out is that a lot of people like to post their dyno results without actually putting sheets up
It does appear with cams, headwork and LTs they can be easily over 300RWHP though...
Ha Ha ... I can be so slow to catch on to things sometimes
I didn't realize we were looking at two different combos there
oh:I might play around with those blue curves a bit and see how they stack up against a real motor
True the blue curve looks better
but
It don't start to make much headway over the other until 4750.
And down low ... ugly with a Capital U
Grady
Adam95GT
New Member
i had a choice between the 4.6 and the 5.0... i went 5.0 because you can go basically anywhere even like a yardsale and find parts... i went to a fleamarket today and found a set of chrome VC's for $10 but they didnt have the oil fill on the right place
I was tired last night when I put up that little comparison and forgot to point out something that can be easily seen here
Things would look very different on the big end if I put up the curves of a typical afr/fti/edel combo as the cats and stock parts I was using did hold things back a bit up there.
but hey ................
My input in this thread is to show there is more to be considered with street car performance than just peak dyno numbers
300 to the wheels is not the same for every combo
Grady
Things would look very different on the big end if I put up the curves of a typical afr/fti/edel combo as the cats and stock parts I was using did hold things back a bit up there.
but hey ................
My input in this thread is to show there is more to be considered with street car performance than just peak dyno numbers
300 to the wheels is not the same for every combo
Grady
Iggyshane
New Member
With my experiences with a 98 mustang gt we did a pi head and intake swap, and vt stage 2 cams it took the car from a 14.6 to a 13.1 untuned in the 1.4 mile and thats with a stock car besides cai and 3.73 gears which it had before the hci swap. I feel the 4.6 takes mods just as well as the 5.0 and cost around the same.
With my experiences with a 98 mustang gt we did a pi head and intake swap, and vt stage 2 cams it took the car from a 14.6 to a 13.1 untuned in the 1.4 mile and thats with a stock car besides cai and 3.73 gears which it had before the hci swap. I feel the 4.6 takes mods just as well as the 5.0 and cost around the same.
I can see exactly what you are saying
1/4 mile et improvement
and
cost effective to mod
I wouldn't and couldn't disagree with any of that
however
Put that heavier mod motored Stang at a steady cruise on the road .......
in 4th gear at say ... 45 mph
and
mat the skinny pedal without up shifting.
Thats where the different torque characteristics of each motor is gonna really be felt
Where is J T
Its kinda like 2 stroke and 4 stroke bikes
Each is great
... but ... different Grady
Iggyshane
New Member
Holding post spot intill i finsh my finals tomorrow sorry
... i might beable to finsh my post on thursday sorry i have to many finals
... i might beable to finsh my post on thursday sorry i have to many finals
The results of a little Comparo
Grady
EDIT - I will say that my tq curve is "smoother" than both of yours in the 3500-5000 range and a bit higher than the 4.6. and..Oh, and wait.. that dude has long tubes....I don't. That's going to give more low end and mid range tq..Wait.. I think yu do as well right? So a 4.6 with long tubes can make almost as much TQ as a 5.0 without... But apples to apples... not. Is that a fair analysis?
BlackVert
15 Year Member
let's see your graph please. i'm working on an "area under the curve" program
grady, can you export your raw data i can import the graphs into excel?
BlackVert
15 Year Member
Grady, my combo doesn't hit 300ftlbs of TQ until 3500rpms, but it definitely doesn't lack anything down low.
I will try and find my mom's dyno graph from her 2001 bullitt. I drove numerous 2V GT's and her can feels SO MUCH stronger than any 2V I ever drove, modded or not. Bone stock with my ET streets I ran a 13.5 at 101 in it.
I will try and find my mom's dyno graph from her 2001 bullitt. I drove numerous 2V GT's and her can feels SO MUCH stronger than any 2V I ever drove, modded or not. Bone stock with my ET streets I ran a 13.5 at 101 in it.
