"get you motor runnin'.."

[Mr. Land Yacht]

...get out on the DRAGway!"

I need a better 1/4 mile time...
I'm considering giving the bottom end of my car a full rebuild, including valve relief pistons, so that I can have a large cam and 1.7 Roller Rockers...
this way, the car will run like it did when it was younger...and then some!
I'm also noticing that on most of the bigger cams for 5.0's, they're always listed as "not computer compatible".

here's my questions:
#1-What parts do I need to get to rebuild the bottom of the motor?

#2-How much will those parts cost?(roughly speaking)

#3-Does "not computer compatible" mean that it's not compatible with the HO ECM? meaning that I would have to convert to MAF...or does it mean that the motor can't be EFI and has to be Carbed?

-Colin

[Blaze86Vic]

SD ECUs do not take well to changes in cams. MAF ECUs however do. But too extreme of a cam will require tuning. An E303 cam will not require tuning on a MAF ECU. Tuning however is recomended no matter what.

[mrltd]

Copy and paste from the other site... was just reading that thread...

1. Depends on what you want to do...
2. Depends on what #1
3. Yes, the cam will not run well with the HO ECM. You will need a lot of tuning and might need to convert to MAF or go carb to have a decently drivable car.


And an added comment about the other thread. Injectors are rated by the amount of fluid they flow in an hour, ie 19lbs per hour, 24 lbs per hour. You need a MAF calibrated to the injector size, or a ECM that can compensate for the difference.


A stock HO motor with a stock HO cam, mildly ported heads, a decent intake and exhaust will run very well and be perfectly drivable. That's the way my old 87 was, and it was great. Super reliable, very very strong running car.

[Lincolnmania]

i'm with mike on this one, but i would stick with the ho cam, and go with a decent set of ported heads..........my towncar is very driveable

[Mr. Land Yacht]

hmm...let's say this is motor my set up:

-HO upper intake, EGR and TB
-Holley Systemax I lower intake
-19PSI injectors
-MAF conversion(ECM, Sensor, wiring, etc.)
-E303 cam(.498 lift)
-GT40 heads
-1.7 Roller Rockers with new valve springs, retainers, etc.
-shorty headers w/ dual exhaust
+full bottom end engine rebuild w/ valve relief pistons

would I need to have the MAF ECM tuned for it to run right?

[Grand Marquis GT]

Yessir. I do know that setup would run pretty damn good...

[N A]

Summit Racing has a 306 engine kit for $880. Rebuild your shortblock, put it in the car and go out have some fun.

[Mr. Land Yacht]

306?
does that mean you bore out out your cylinders a little but and then put in the kit?
what's in the kit...you have a link?

[Grand Marquis GT]

.030 over 302...

[mrltd]

Meh, better cams out there than the E cam. Even with the E cam you might still have idle issues. I'd stick with the stock cam.

And again...19lb/hr injectors...not 19PSI...Injectors are rated buy the flow per hour at a set PSI...

The E cam might warrant a MAF conversion. Stock cam should be fine with the SD. I ran mildly ported heads, big exhaust, headers, and a stock HO cam. Put down 196hp on a 250K stock lopo shortblock.

[Freshmeat]

I'm not sure 1.7 rollers would work well with an E cam. I'd stick with 1.6s, personally.

[mrltd]

+1....

[Mr. Land Yacht]

And again...19lb/hr injectors...not 19PSI...Injectors are rated buy the flow per hour at a set PSI...

sorry, I was told both terms..I got confused...
hmm...there was one cam I saw on sumitt that had .471 lift...maybe I should go with that instead of the E303.

hmm...If I had the .471 cam with 1.7 Roller Rockers...would I still have to convert to MAF?

the reason I'm asking all of these questions is 'cuz I want to get as close to 300 hp as I can...naturally aspirated anyway.
I don't want to throw on a supercharger and intercooler on it if I can avoid it.
that's way too much $.

[mrltd]

Need more specs on the cam....

[Grand Marquis GT]

A comp cams grind similar to the one mrltd has would be killer..