LT, O/R mid pipe, LM2's
GT (the supercar) cams
Fr500 heads P&P'd
intake spacer
CAI
P&P'd intake
4.10's
tuned
there was something else too, but i don't remember off the top of my head.

the most i've seen out of a N/A 4.6 DOHC is 451rwhp ~410rwtq

 

That is really good. I didn't think you could get that out of a 4v being n/a.

I'm just trying to get an idea about the mods for his car. I have owned mine for about 4 years now and this will be his first. So he is comming to me to help him mod the car. Just want to have a general idea about it so that i can answer his questions when he asks them.

 

you can, but it costs 5x's more than any power adder.

 

OH and to answer your gear questions

Manual
.62 ratio, 80mph, at X.XX:1 rear gear ratio

3.55 = 2304 rpm
3.73 = 2421 rpm
4.10 = 2661 rpm
4.30 = 2791 rpm
4.56 = 2960 rpm

top speed w/ 3.55s, 5th gear @ 6798 rpm = 236 mph
top speed w/ 3.73s, 5th gear @ 6780 rpm = 224 mph
top speed w/ 4.10s, 5th gear @ 6787 rpm = 204 mph
top speed w/ 4.30s, 5th gear @ 6769 rpm = 194 mph
top speed w/ 4.56s, 5th gear @ 6771 rpm = 183 mph

Auto
.70 ratio, 80mph, at X.XX:1 rear gear ratio

3.55 = 2602 rpm
3.73 = 2733 rpm
4.10 = 3005 rpm
4.30 = 3151 rpm
4.56 = 3342 rpm

top speed w/ 3.55, @ 5789 rpm = 178 mph
top speed w/ 3.73, @ 5775 rpm = 169 mph
top speed w/ 4.10, @ 5784 rpm = 154 mph
top speed w/ 4.30, @ 5791 rpm = 147 mph
top speed w/ 4.56, @ 5765 rpm = 138 mph

 

Thanks USMCrebel! Very helpful! I think i will tell him to use the 4.30s. Seems to be a great balanced gear for the mach1.

 

4.10's are better if he is planning on modding a lot down the road. the 4.30's will blow the tire off in 3rd gear if your not careful...

 

He will eventually be supercharging it.

 

yeah 4.10's then and if he wants mass HP from the S/C then i would just wait and leave the 3.55's JMHO

 

I agree with the 4.10s. My manual Mach was lightly modded on 4.10s and had a severe lack of traction. I think 4.30s would be a bit steep with a supercharger. People do it though.

 

another 2 cents worth...

3) majority of dynos I've seen are in the high 270s, which equates to 325 hp at the crank. ET (13.1)/Trap speed (106)/vehicle weight (3665 incl. driver) calculators equal to right around 325 so I'm convinced those hp #s are the correct ones.

6) to compensate for the 3.55s, the Mach has a 5th gear .62 ratio which yields 27-28 mpg hwy. because of the high OD, 4.10s increase cruising RPMs by only 300, 4.30s by 400.

Per your question to USMCrebel...4.30s...70 mph rpm 2400, I think 80 mph rpm around 2700. With 4.10s being 100 rpm less. 4.10s decrease mpg by 2 city 3 hwy, and 4.30s a little more....ofcourse. Rebel correct me if I'm wrong on this.

P.S. just realized thier was 2 pages of responses, sorry for the redundancy.