5.0 with 9.5 compression and RV cam

7 posts 3 contributors 2,412 views

Member since Mar 2003
4 posts
Moses Lake, WA, USA
1 vehicle in the registry

Apr 12, 2003 at 10:31 AM

What kind of power would a stock 1990 5.0 out of a Bronco make with 9.5 compression and an RV cam (sorry no numbers available for the cam). I believe the stock compression is 8.5 and power rating is 190hp/210ftlbs.

Thanks for any help!

1990 Bronco Custom
1978 FJ40

Pony-boy

Member since Mar 2003
147 posts
Roy, WA, USA
7 vehicles in the registry

Apr 12, 2003 at 12:30 PM

What exactly are you looking for?
You wont know HP or Torque unless you Dyno it.
What Tranny are You gonna use. 5.0 what? 351?
Are you taking it out for another rig,

Get where I'm going,
351w are strong if you built them right,

Thats not dented, It's customized

Brent RaymondOP

Member since Mar 2003
4 posts
Moses Lake, WA, USA
1 vehicle in the registry

Apr 12, 2003 at 9:01 PM

What am I looking for? The increase in power I can expect from two factors (9.5 increase in compression and RV cam) based on the factory ratings of 8.5 compression and stock cam for a 1990 5.0 sitting in a Bronco. This should be quite simple; not much to read into it. My guess is 220-230 horse. Anybody?

1990 Bronco Custom
1978 FJ40

Pony-boy

Member since Mar 2003
147 posts
Roy, WA, USA
7 vehicles in the registry

Apr 13, 2003 at 2:52 AM

Sorry, your right I read tooo much into it.

From experience on (unfortunately) a chevy 350

Flat top cast pistons and a 272 or 484 Crane cam
and 4.11 gears he was running 298 hp off the dyno.
cant remember the torque. This engine sucked prior
to the rebuild. He said it was well worth it.
Approx 170 hp before, 200 extra hp is in the
right range if its built right. He had a engine shop
do it.

Thats not dented, It's customized

edited Apr 13, 2003 at 2:56 AM

Brent RaymondOP

Member since Mar 2003
4 posts
Moses Lake, WA, USA
1 vehicle in the registry

May 15, 2003 at 12:10 AM

Thanks for your replies, Pony-boy. Your guestimate on power is pretty good. I ordered a 9.5 302 with HO cam that is rated at 275hp and 300+ftlbs.

BTW, if anybody is looking for a good crate engine, check out http://www.enginefactory.com/ or http://www.fordcobraengines.com/ (same company.) They have great service and quality engines. I am very pleased with the new motor they sent to me!

1990 Bronco Custom
1978 FJ40

Pony-boy

Member since Mar 2003
147 posts
Roy, WA, USA
7 vehicles in the registry

May 17, 2003 at 3:02 AM

Good to hear we got everything strait,
Sorry bout the first post.
Post some pictures if your doing the build-up yourself.
Sounds like you got a really fun project ahead of you.

Thats not dented, It's customized

shiepo

Member since Jun 2011
75 posts
carson, CA, USA

Mar 12, 2012 at 8:07 PM

Quote:

What kind of power would a stock 1990 5.0 out of a Bronco make with 9.5 compression and an RV parts cam (sorry no numbers available for the cam). I believe the stock compression is 8.5 and power rating is 190hp/210ftlbs.

Thanks for any help!

i have an rv parts and i also own bronco i was thinking on where can i buy some parts of it. can you help me on this mate? thanks a lot.

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