i was looking in a summit mag yesterday and it had a chart of duration @.050 of cams. it said intake 190 deg. - 204 deg. could be use with a stock convertor. my cam card says it is 204. that mustang hass 4:11 gears in the back and i still don't think my cam is the right one but i am going to put and aftermarket 3 key timing set. i think with those gears and the new timing set to either 0 deg. or 4 degrees advance it will have great acceleration with an auto tranny. what you think.

 

If the duration is right, I'd say your on to something. When you had that motor in your truck, at idle with your foot on the brake, say at a stop sign or light, did it feel like it wanted to lunge forward? (I think I described that right)

If the timing chain is new in the motor, if it were me, I might leave it alone and run it, see how those 4.10 gears work out, since its not your daily driver you could always tear it apart later, then again the motor is out and accessable, who knows, I think either way you can't go wrong.

I bet your itching to see what that 302 will do in that mustang, can't blame you either. later

 

i know i can't wait and they guy just went out of town so i have to wait till he gets back to tie up this trade. the timing set i have is new but it is just the stock replacement for the 90 truck that it was once in. so it has the 4 deg. retard in the timing already built in. everybody tells people on this site that if i get a pre 71 set or an aftermarket set it would perform a bit better on acceleration. and at a light it took a little bit of gas to creep. not too much but some. it did not want to put you back in the seat at takeoff but probably around 1800-2100 rpms it would brake your neck. we had a burnout contest with it and a bunch of other trucks and hotrods one late night and we put those wore out 31 inch tires on the back to burn off and i knew it was not going to do it. but when it was my turn i tried without oil and with oil and bleach. it would not do it. now if i let off the brake in reverse it would burn them off then stop. so i went from reverse to 1st(being dumb) and finally got it going. a matter of second this thing was cooking those tires off. both of them i think.i put it in second and burned them in second then let off the brake and it burned off down the road. it sounded like a tractor pull with my 2 foot of straight pipe off of the motor. i know a big part of that is it is in an ext. truck with a HD c6 that takes up to 60 HP to turn and a 9 inch rear end. that is major power loss right there. stangs weigh in at around 3300 pounds. so this one has a lift off fiberglass hood that is pretty light i'm sure. it has 4:11's also. so with the help of the less weight, way lower gears, better dynamics and a different tranny and the different timing gears i think the motor will be just fine.

 

Something to think about, I read an article a few months ago, where they dynoed a cam by retarding and advancing and then straight up, didn't make any noticable difference. Whether that is how your engine is affected is another story, but its something to think about.

You say that old truck sounded like it was in a tractor pull.....I know what you mean. later

 

do you remember which article
maybe i will post something

 

Well your in luck after going through a stack of different magazines I found the article.

Muscle mustang & fast fords--Novermber 2003--Vol. 16--Issue 11

Article entitled "A difference of degrees" page 158

ON this particular motor 347 w/t afr205 heads and xr286r roller cam. The cam had 4 degree advanced ground into it. So when they advanced the cam +4, 0, and retared -4, in reality the cam was advanced +8, +4, 0.


hP wise this is what happened.

Timing set at.....0..............+4...............-4......
Horsepower numbers
3200..................233.........232............. .227
3600..................261.........365............. .358
4000..................288.........290............. .279
4400..................335.........343............. .327
4800..................388.........394............. .384
5200..................427.........431............. .419
5600..................449.........451............. .430
6000..................473.........477............. .455
6400..................488.........492............. .472
6800..................490.........499............. .480

Advancing the cam gave 10 more peak hp when advanced 4 and lost 10 hp when retarded 4 compared to installed straight up. IN reality the hp peak occured at the same rpm, so advanced or retarded didn't move the power band, in this case, up or down, except at on point at 4400 it gave a gain of 8 hp advanced and lost 8 retarded.


timing set at ............0............+4..............-4
Torque numbers
3200.........................383.........381...... .....373
3600.........................381.........387...... .....376
4000.........................379.........381...... .....367
4400.........................399.........409...... .....390
4800.........................425.........431...... .....420
5200.........................431.........436...... .....423
5600.........................421.........423...... .....404
6000.........................414.........417...... .....399
6400.........................401.........404...... .....387
6800.........................379.........385...... .....371


Advanced the cam picked up 10 lbft at 4400 and lost a lot when retarded after 4600. When advanced it didn't really gain much on the top. The article pointed out that all engine will react differently. But then again how can someone know unless they run it on the dyno or at the strip a lot. Look the numbers over and see if its for you. Later


ps...did you happen to see or remember what brand and number gasket you used on your e7 heads?

 

oh the intake no i forgot but i am going outside now so i will post next time

 

I noticed in the horsepower numbers above at 3600 the magazine said the hp jumped from 261 to 365 advanced 4 and 358 retarded 4. That makes no sense, but it is as stated, so you might consider that a misprint. Just a thought

 

hey the intake set i use is a fel pro 90 361 R8. it was a fuel injection kit but it is the same as a carbed intake. thanks

 

Appreciate it.


So what have you decided, as far as, the timing set? later

 

not sure yet
i got the car it is badass

 

Sounds good, the way you have been going you will have the motor in it and running, by mid week. later

 

ok i need to get motor mounts and a tranny crossmember and a driveshaft. i hope i can use the driveshaft out of the other stang. but i think i may have to customize my own driveshaft. do you think i should use a 3 spd c5 or the aod. the car originaly came with an aod but that was changed to a c4 i think they said.did you try that yahoo messenger thing yet

 

No, I have aol intant messanger, will it work with the yahoo or is it specific to yahoo? I use the aol instant messenger occassionally.

If your gonna drive it on the street the aod, if more strip than street then, c5. If your like me and could care less about overdrive, then either way c5. later

 

you have to get yahoo messenger to chat with me on yahoo but you could get it free