Mustang? - Page 2 - Fuel Economy, Hypermiling, EcoModding News and Forum

oldschooleco · 06-16-2015, 08:39 PM

Quote:

Originally Posted by Baltothewolf

Bigger alternator means it will run at a lower cycle rate which means it doesn't pull as much from the engine. Testing will be needed for Underdrive pullies, but if you go a high flow water pump and a good radiator (like you should) then it shouldn't be a problem. I gained 1mpg when I upped my alternator to a 140amp from the pathetic 80A that's stock on my '91. Not to mention my lights don't dim at night anymore.

Also, I would run like 12-14° timing if possible, I gained like 2mpg when I bumped my timing to 14°. Cruising was way easier as was my acceleration. Idk with a 351 if you will be able to run that high of timing without knocking. Again, testing will be needed.

Still, I think stock you can get 19-21 on the freeway, if you do some other mods you can probably get 25ish

How high of compression are you running?

Im going to try to run between 9.5-10:1(until i build my turbo 351). and there is no OBD2 and it will be carbed.Im not trying to put lipstick on a pig because I'm not expecting what you guys get for mileage 35 and up lol. Ill be tickled to death with low to mid 20s at 65mph which isn't to much to ask from a light weight slippery body with some tricks done to it,Thank you all

dirtydave · 06-16-2015, 09:33 PM

hey man copy / paste the links I posted

(on mobile ill fix em later)

a few pics of a nice mustang with some sweet aero

oldschooleco · 06-16-2015, 09:42 PM

Quote:

Originally Posted by dirtydave

hey man copy / paste the links I posted

(on mobile ill fix em later)

a few pics of a nice mustang with some sweet aero

That thing is BEAUTIFUL! I still think i have an advantage with the hatch,ill post some pics tomorrow!

Baltothewolf · 06-17-2015, 12:52 AM

oldschool, why turbo? Every fox owner I know that lives near me has done turbo, but torn them out within a year and went supercharger because they feel its superior. Especially with a 351, you will have the top end power there at your disposal, what you are going to need is 1500-3500rpm power which is where a supercharger excels.

oldschooleco · 06-17-2015, 07:25 AM

Quote:

Originally Posted by Baltothewolf

oldschool, why turbo? Every fox owner I know that lives near me has done turbo, but torn them out within a year and went supercharger because they feel its superior. Especially with a 351, you will have the top end power there at your disposal, what you are going to need is 1500-3500rpm power which is where a supercharger excels.

Ill get better mpgs with a turbo?no?

Baltothewolf · 06-17-2015, 05:08 PM

Quote:

Originally Posted by oldschooleco

Ill get better mpgs with a turbo?no?

Maybe? I know my buddy has a extremely powerful Fox (450ish HP with 3.73 gears) and a supercharger and he gets 22-23 at 75mph. He said he got like 27 at 65. So idk. I wouldn't spend so much money and in the end go turbo on it, just saying.

oldschooleco · 06-18-2015, 07:22 PM

Pics as promised,Im still not to sure on a supercharger.Id make all the piping for the turbo myself And it would probably be more economical for me to do it that way anyways.How do i upload pics?.Thank you!

UltArc · 06-19-2015, 12:01 AM

Post them somewhere else, then copy the URL. Click the icon of a painting, and paste the URL.

Balto, I would argue the turbo because the super is always draining on the engine. If OP wants power first, and doesn't care MPG, yepp, SC it. But if he likes power but still has a priority on MPG, then T it up! Plus, one of your points aren't helping...if people are selling turbos for SC, then it will be even cheaper!

Plus, he can do a lot of work himself. Tuning may be the biggest challenge.

pgfpro · 06-19-2015, 01:04 AM

IMO I would go the turbo route also. You can build a turbo engine for great mpg and performance. With a good turbo match you can control when you want to make power or not.

Here's a pic of a good friends car that we turbo charged and ran a Haltech management system that I tuned. The car gets decent fuel mileage on E85 and ran 9.40 @ 145 mph in the 1/4 @ only 10lbs, it should be running in the low 9's this year when he turns the boost up. Compression is at 9.5:1.

oldschooleco · 06-19-2015, 08:27 PM

Thats a Beautiful car^^^ and I know id like to go turbo, and ill be building a 302.Because it will be lighter, cheaper, and better on fuel. Like i said i was getting 26-27 mpg going 65 mph.Im hoping for 300whp until i can go turbo