i just didnt know if it would make a difference to get a fuel pin or not since its at the deepest point and i dont have to wait for the fuel to get there, ya know what i mean?

 

oh it'll make a huge difference... the deepest setting of the stock pin isnt even close to the deepest point of the M&H pins, the stock pin has a gradual steady ramp up, M&H profiles are different and far more aggressive

 

You can see the difference here.

https://www.dieselbombers.com/5-9l-r...in-review.html

If I was to do it again I would go with a M&H M3 or M4. My DennyT stage 2 makes great power up top but fuels to hard down low and is hurting my spool up.

 

alright guys i have the bully dog pin, and i was thinking about getting the m and h m3 pin, is it worth the swap

 

i've heard of issues with the bully dog pin being too soft of a steel and the pin wearing a groover into the pin, so any hardened pin would be better at this point. i've got the M3 and i cant really complain, its got a power surge tho, it'd probably be less noticeable possibly eliminated with some AFC tuning, just i havent been able to get around to it.

 

I wouldn't buy a Dennyt. I just removed mine because it's deeply gouged after 4 months of occasional use. Certainly not hardened and he won't answer my email. I have pics if anyone cares. And yes it fuels too fast. I'm thinking an M3 this time.

 

I just got off the phone and everything worked out with DennyT. He had a bad batch of material get through and he is replacing mine with a pin with the correct hardness.

 

Wow. I'll have to check mine. I know he had an issue with some bad material and replaced a some for some other people. Keep trying him.

In all reality its not hurting anything.

 

so my question is do you drive every day with these fuel pins? i keep debating on buying one but am not sure. whats it do to you egt's?

 

Everyday driving is no problem. Towing is smokey but heat is manageable. Just tune the afc to come in late.