Ive wondered this for a while, how would a EZ (90hp i think) or smilar do compared to the same size injectors (90 hp). Would the smoke and EGT's increase be the same?

 

EZ is 60 HP with timing. Nice in it's own little way
Injectors are a different story altogether, you can't turn them off..
Get both!!

 

90 HP is 90 HP.

But what is not very often discussed is difference in the shape of the dyno charts comparing the two.

Is that what you are asking?

Jim

 

I have put on 7 EZ's and all have got as good or better MPG, Injectors not so much. Like nice is like sluggo42 said, the EZ is 65HP with timing and you can turn it off. The smoke and EGT's is lower with the EZ. Also a lot less work and $$$. By the way why would you want a EZ if you already have a COMP

 

do both 275s and ez nets you about a 100hp

 

Its for my buddies truck. I was just wondering if a 65hp EZ would produce as much smoke and heat as a 65hp injector. I was wondering if there was any difference. I just want to know if it would be the same EGT and smoke-wise

 

On a stock truck RV275's and EZ will get you rougly 305 or so. But will defanitly get you over the 300 mark.

 

would a EZ versus a comparable hp increase injector smoke the same and have the same EGT's

 

No. The EZ is rated for peak power and that power has a smaller footprint on a dyno graph. Injectors seem to carry their power through a larger part of the graph.

Once boost is up most any fueling device will clear unless you are under turboed or way over-fueled.

 

so how much more would a set of injectors smoke vs. an EZ and what about EGT's

 

I don't have an EZ but my SC has about the same EGT's as my Jammer 3's. Power seems to more with the injectors, don't know about mileage cause I can't keep my foot out of it. I just run injectors now and leave the SC for code reading....until I can beef up my tranny.

 

The EZ is going to run cooler because of the timing. The injectors would only add fuel which is adding heat. The EZ adds mostly timing which causes lower EGT's, the EZ gets most of its power from timing and not fuel. Alot of people who want nice towing performance with a stock turbo say that you can tow most big grades and stay under 1250* with just 275's and an EZ. I towed with an EZ and Jammer III's and stayed under 1250* up a one mile 6% grade (thats about as bad as we get in Texas). The story may not be true for altitude and 8-9% grades.

Jamie

 

I ran the EZ with sticks (90hp) and had to change the jumper settings because of the low boost fueling. I could black out an intersection if I got in it but that is with the stock turbo. It was okay on jumper setting 1 though. I really don't like to roll it in town, never know who is behind you. If I had it to do again I would have bought rv 275's. I had the ez on first and didn't really get much smoke so I can't really compare against each other seperately. I have never had any egt issues but live at sea level. Does fine in the mountains (hills) of Va too. Sticks + EZ made me smile ALOT.

 

I ran just an EZ with stock injectors and like said above it is a timing box so it doesn't smoke very bad at all with stock injectors. I have never ran just sticks with no box so I don't know how bad they smoke by themselves. If I had to guess the EZ would be the best way to go for smoke/EGT control, I think just the injectors would be the hotter/smokeyer choice.

Just tell him to get both and LOVE LIFE!!

 

Well still confused about what you want. But I'll try.

With the injector the power will likely increase across the entire RPM range maxing out, about where it would with the stock injectors. With the EZ the power would come on like stock at first, then once the box starts doing its thing the power will come on pretty hard and noticable. You will get a wider power band with the injectors and a more abrupt power band with the EZ. The EZ power feeling would be similiar to a 2-stroke dirt bike when the RPM gets it "up on the pipe". The injector would be closer to the power band of 4-stroke dirt bike, same power just wider.

I don't know how bad the EZ would smoke. I am going to guess that you are after less smoke as opposed to more smoke. The EZ will allow more boost (with a boost elbow) and should smoke less. The EZ will likely wait for boost to build a bit before doing its thing. With the injectors only, you will be limited to about 20 psi of boost so likely more smoke especially at low RPM's. Although, nothing that is not controllable by being a bit easier on the go peddle. A 65 Hp injector should be very managable on smoke.

The EZ will allow more boost and should control EGT's better due to that and the fact it is increasing timing. However, with injectors your boost will be limited to about 20 psi so the potential for higher EGT's is there due to added fueling with no added air from raising the boost pressure. I am going to guess that because the stock ECM will just defuel at 20 pis of boost anyways so the two choices might be a close push in comparison. I have no experience with this.

If it were me, I would recommend to my friend to go with the EZ first. Installation is a snap and so is removal if he does not like it. Injectors are more involved. The EZ is adjustable and can be turned off if things get out of control and or tuned to a desired driving style.

As a few have suggested, a very good combination to start would be a EGT gauge, a Boost Gauge, an EZ, a boost elbow and then maybe RV275 injectors. He will be loving life until the urge for more power sets in. In which case his wallet is doomed.

Jim