a_penquin

I'll re-estimate then at about 230-250hp considering baseline is 215hp @ 4200rpm. Also on that note the 4V of the same year made 300hp @ 5000rpm. So 85hp out of a engine not on boost is well worth it, however the motor Im looking for is 390hp @ 6000hp.

97gold

i think i have about 265 270hp maybe with every bolt on and a pi engine after cams and tune i should have over 300hp

jmac72187

You have no idea what you are talking about.

a_penquin

Specs are coming from the AM tech site, the 390hp is the 03 cobra motor Im attempting to track down, the single and dual overhead specs are both for 98 model engines

jmac72187

You are talking about crank hp. No one talks about crank horspower. You are definitely not making 230rwhp.

EDIT: Also expect to pay a lot for a Termi drivetrain. They make that much because they are boosted.

97gold

don't the non pi make 215 at the crank and like 185 or 195hp at the wheel's

a_penquin

listen, Im not here to fight about power at the wheels, at the crank, or whatever, Im looking for information for a few things I want to do, lets get back on subject.

jmac72187

Have fun... but if you think you make 300 hp crank or rw from your mods on your NPI engine, you have a lot to learn.

Aereon

The guys over on svtp have gone through this, look for a thread with the title of the red pill or something along those lines. There are many weakness's inherent in the cobra's IRS, the biggest one being that Ford decided to use rubber bushings in the IRS instead of with something a little stiffer like poly-urethane.

When we first swapped the IRS into my car, I decided to test the whole wheel hop issue since I did not believe it was as bad as was posted online. I went over to my friends workplace which is like a deserted hangar during the day (they park bus's in there during the night) and we messed around for an hour or so dumping the clutch. It felt pretty damn bad when the tires warmed a bit and it started hooking, felt like my SRA on a rough road. After swapping out the bushings for poly-urethane ones (did not go with delrin as they require regreasing quite often and I put too many miles on it to really be bothered with having to do this) and going back to the same garage, albeit these weren't in a perfectly controlled place, the test provided impressive results as far as wheel hop (there was almost no wheel hop)

This is what I've done to the IRS, I will not be going with the dss lvl 5 halfshafts as I've seen a lvl 5 halfshaft get demolished by a stock cobra, I'll replace it with another 03-04 halfshaft if it breaks as it's cheaper and to me is plenty strong enough for my non drag car.

Maximum Motorsports IRS Urethane Subframe Bushing Kit
Maximum Motorsports IRS Urethane Control Arm Bushing Kit
Maximum Motorsports IRS Urethane Swaybar Bushings
Maximum Motorsports IRS Differential Mounts
Maximum Motorsports IRS Sway Bar End Link Set
Maximum Motorsports IRS Adjustable Complete Tie Rod Kit
Low Profile IRS Subframe Bolts
IRS Subframe Front Mounting Bolts
IRS Subframe Front Mounting Nuts
Billetflow IRS Bracket
Billetflow Differential Cover Brace

97gold

i've never had problem with wheel hop except for the probe i had and that was frwd
but i never tried dr's etheir