Bill1374

Just acquired an EZ off ebay. Looking to add the smallest power as I'm towing a 14k fifth bud the manual does not refer to power adds directly. Can I assume that "most responsive", setting 3, refers to highest HP gain and that low boost setting 1 is the lower gain?

Thanks, Bill

graphitecumnz

Actually, the gain will be within 10%... almost negligible at those levels(60-65rwhp). Jumper 3 brings full additional fuel in at lower boost levels... I believe it was 10psi... the jumpers are really for low boost smoke control.

bullboy85

ya but on the EZ i set it to the highest and never had a problem. now with the XZT+ i acculy am a little leary about haveing it all the way turned up with the stock trany and a heavy load. but yes low boost is the lowest setting

mopar-or-no-car

ya its like 60-65 hp just put it on the highest and it'll be fine

erics76

It's not worth the time to open it up and change the power levels.
Level 1: HP-60 torque-160
Level 2: HP-63 torque-170
Level 3: HP-65 torque-180
so you're looking at a difference of 5hp and 20ft/lbs between 1 and 3. It wasn't worth the effort to me, I never changed it in the 4 years I had a EZ. Their literature says the jumper can be moved in accordance to the size of injectors used, i.e. stock injectors use 3, moderate injectors use 2, large injectors use 1.

GFB

Those hp/tq numbers mean nothing about the adjustment. It's all about how hard and low the fuel comes in, not max hp/tq.

AggieJustin

The jumper settings on the EZ are all about low end fueling.

#3 starts fueling at 2psi
#2 starts fueling at 10psi
#1 starts fueling at 20psi

The top end is about the same on all levels as previously posted. So adjusting the levels will provide more smoke control and better protection of your transmission since the additional fuel won't come in until you're further into it.

erics76

That's odd, it came right off their website. I guess they don't know what they're talking about.

mopar-or-no-car

Ya it does start fueling sooner on three, but it still isn't enough to worry about hurting anything

HOHN

GFB is correct. The reason the "power levels" change is because Edge advertises hp gained at the point of maximum gain.

Thus, if the fuel comes in more aggressively, then you will have a faster tq rise, and hence more "peak gain".

IMO, the Edge EZ is far more driveable in the mildest jumper setting, whether you have stock injectors or bigger ones. After trying setting #1, I'd periodically try the other settings for awhile only to end up going back to setting #1.

ON the higher settings, you'll soon get tired of the fact that the last inch of your loud pedal is useless.

The actual power differences between levels are neglible, imo-- and the enhanced control of the fuel delivery at the lowest level far outweighs the extra couple HP.

Hôhn

hink

The XZT+ is not any more HP than the EZ is. Shouldn't be a problem if you ran the EZ on the "highest setting" too.

AggieJustin

Even though the peak HP ratings are the same, the XZT+ may have a steeper fueling curve to that peak number. If it does, it would be harder on parts than the EZ because the power is hitting "harder" down low.

hink

Alright, then let me put it this way--I've ran both boxes, there shouldn't be a problem. Just my $.02

Valv

Bill1374, if you tow heavy set it on jumper 1.
The reason is, as others explained, the fuel delivery is harder on higher settings.
I have same box, since I tow heavy I rather have less fuel at lower rpm, it will give less immediate surge of power, otherwise I have to really watch my pedal to avoid clutch slippage.

Practice a couple of times and you'll find out the difference in a hurry, it's much easier and smoother to tow on 1 than 3

Bill1374

Thanks, all, thats what I was looking for. Since I'm going to be over 20k on the road with the fifth, setting number 1 it will be.

Bill