Engine/Transmission (1998.5 - 2002) Has anyone dynoed a set of Mach 2s yet?

[PC12Driver]

Just put my truck on the rollers at Scheid and was quite surprised with the results. With the Mach 2 EDMs (100hp), an Edge Comp on 5x5, and a Dodgezilla 40/35 w/a 14cm2 housing, I was only able to get 350hp/800tq (I have boost wastegated at 39psi and temps were about 1400 deg or so). With the injectors only (comp off) I only pulled 278hp/580tq (30 psi and 1100 deg).



The way I figure, I'm missing about 100hp somewhere. Even the dyno operator said that the results aren't much higher than he normally sees with just a comp. Injectors only should still pull over 300hp, probably close to 320hp. Fuel pressures won't drop below 10 psi, and the truck runs great otherwise (no codes, starts easy, smooth idle). I'd get the normal heavy smoke on spoolup and then burn clean once on boost. And the wire is tapped correctly; I also did a run on 2x2 and that spun a 320hp - so there was a difference between level 2 and 5.





So, any ideas? It almost looks to me that I've got a bum set of injectors, so that's why I'm wondering if anyone else has dyno experience with these sticks. I'm currently on vacation pulling a 10k trailer (first pull with new injectors), and the truck doesn't seem to pull the hills as well as it did back when I just had an EZ. Kinda frustrating.

 

[Leroy D]

Where did my hp go

Last year at the schieid diesel I dyno-ed 289 hp/ 630fp torque. Later I realized that my lift pump was sick so it was replaced and a pusher pump was added. Then a set of 65 hp injectors and then a 35/40 Dodgezilla turbo which should have added about 40 hp I was told. It runs pretty good so I decided to have it dynoed again. I went back to the Scheid diesel event at Terri Haute. Guess What -----275hp/ 810 fp torque. I lost 14 horsepower but gained 180 fp of torque. There is something here that I don't understand. I expected to see 375+ hp but the dyno operator tells me 275.

 

[Snow man]

Sounds like you havea bad connection at the pump

wire. Was there a difference between power level 1 and 5?. The numbers you got are average for a truck with an ez. Check your pump wire.

 

[PC12Driver]

That's what I thought at first (bad connection). But two runs on 5x5 were within 1 hp of each other, and a run on level 2 showed a 30hp loss. If the pump wire wasn't connected I wouldn't have seen any change, and if it was loose I'd think the truck wouldn't run very smooth and would set codes. Also, that wouldn't explain where the power went with the box OFF completely, as I'm missing 40-50hp there, too.

 

[RCone]

I would think that with your setup you should be 400+. What is interesting to me is the 30hp difference between level 2 & 5. Hmmmmmmmm. We do know that ETC's respond better with your setup than ETH's but something is wrong here. You obviously have enough boost, although did you say you can reach 39 on 5x5 or that is what you are WG'd for. So I would assume no boost leak. You could try swapping comp boxes with someone. And are we to assume even tho you have an upgraded fuel delivery system that you pressure is good???? Just random thoughts. I can't see it being the injectors but stranger things have happened. No weeping injector lines etc?



Roger

 

[Pinion Twister]

PC12Driver:

I too, was very very upset with my #'s last weekend.

In 2002 with comp box, bullydog 2's, 4" exh. I put down 356 hp 929 tq on there mustang dyno, now this year after upgrading to a drag comp, Dons mach 3's and a B1B-2 my results were 381 hp 1060 tq. Talk about a kick in the a++.

 

[RCone]

Am I wrong or does there seem to be a common denominator here? It would appear that you both dynoed at Schieds since you are both from Indiana. Me thinks the dyno may have been way off. Both of you should have quite a bit more than the dyno indicated.



Roger

 

[PC12Driver]

My fuel pressure is good (>10 psi), no leaks, and otherwise the truck runs good. I'm pretty much ruling out the comp box too, since it was turned off for one of the runs, which also showed low numbers. As far as the dyno, there were a bunch of trucks that day putting out what they're supposed to. My back to back runs on the same setting were almost identical, so the dyno appears to be fairly consistant, anyway.



The main reason I started this thread was to see how many folks have actually dynoed a set of the F1's to see if they really do live up to their claims, and to see if they're consistant from one batch to the next.

 

[RCone]

Ask DonM himself, assuming of course that is the brand of EDM's you have. Get ahold of him on DTR or NWBombers. My setup, other than the fact I have an ETC, is just about the same as yours. 2. 5hp for every tenth so therefore Mach 2. 4's are 10hp more than yours. FWIW, without my DodgeZilla, I dynoed 482. 2 at PDR last year.

 

[Idaho CTD]

PC12,







If you used a DynoJet I’m certain your numbers are correct. Its difficult for the operator to get it wrong. All of the F1 injectors were developed on DynoJets. If you used the Mustang dyno that Scheid has, the numbers will vary greatly.







Examples: Fred Huber has Mach 6’s and tested at 585 HP on the DynoJet. At the same event he also tried the Mustang dyno and got 468. The Mustang numbers are rarely what the majority of vendors and the majority of customers are used to seeing. There were several examples of people who dyno’d on both dynos and came up short on the Mustang.





F1 injectors are not made in batches. They are produced one at a time as the orders come in. Consistent results are the norm not the exception. I know that Don will make it right if the trouble lies in the injectors. In contrast to your dynoing with low numbers nearly everyone has higher than advertised. This past weekend we dyno’d a set of Mach 2. 5’s with a comp box and HX40 turbo on a DynoJet. The HP was 472.



PM me and I'll give you Don's number, if you dont already have it, so he can do what's needed to make it right with you.



Nathan

 

[Leroy D]

Yes the common denominator here was the mustang dyno. I did not realize that there could be that much difference between the mustang and the dynojet. None of the Scheid techs mentioned thatI think it was the dyno!!!! Oo.

 

[PC12Driver]

As soon as I get back into cell range (friggin nextel) I was gonna give Rip and/or Don a call and see what they think. I have Rip's number, and I'll drop you a note if I need Don's. I know they're both excellent guys to deal with and will make it right if there's a problem. At this point I'm not sure if it even is the injectors where I'm loosing power. But then again, I don't know what else it could be, either.



As far as Dyno's, I'm not sure what flavor I was on. It was Garmon's (Diesel Performance Motorsports) mobile dyno. Looked like a gooseneck carhauler with a 4' drum in it. The printout I got was very DD-like.