Krob

Alright i will say first off it was fun to find out what the old girl can do. I did not do the driving and it was on a mustang dyno.

With the chip turned off i made 271hp. Alright so what kind of injectors do you think the truck has then?

With the chip turned on i only made 300hp my question on this one is did the guy only move the switch for the xzt+ over one to the timing or does the old girl even with in the timing fuel setting only gain 30hp with these injectors?

Thanks hope some one might be able to shed some light on this one for me.

Krob

Alright i got the chart infront off me

1st go supposedly with XZT+ fuel and timing but id bet only on timing i got 300hp at about 2500 rpm
728ft lbs 1800rpm

2nd go xzt+ off i got
278 HP at about 2600 rpm
591 ft/lb at about 2300 rpm

Alright so once again what kind of injector do you think i have?
when we say rv 275s is it ment at the ground or at the flywheel? same with the stock HO 245hp ground or at fly wheel?

also do you think the guy did not flip the switch all the way because that is only a gain of 30hp which would be perfect if it was timing however i know you cant always just add numbers up.

Thanks sorry if i am repeating my self.

Sandaholic

I'm not very familiar with the sticks or boxes used on the 2nd gens so I can't be of much help, but I do have a question. Where did you dyno at today?

Fishin2Deep4U

Well, it depends....

Okay, if it's an HO, it'll respond better to injectors than a box.

RV275's won't give you a 275HP engine. IF that's what you are asking. Generally, they make about 35-40HP. Usually around 30HP on a Mustang dyno depending on type. The box will be good for another small kick as well, but you can't add up the advertised power from the components.

The numbers listed on the factory engine is flywheel HP. Usually, aftermarket companies like to use RWHP. But that's for a single given product. And the fact that SO and HO trucks can fuel so differently, it's hard to say.
Dave

Krob

Dynoed at fast specialties in vancouver they had some kind of diesal dyno days. There were probably 60 trucks that went through.

Krob

Beuller beuller... anyone got any ideas