Engine/Transmission (1998.5 - 2002) Got my mach 4's

[rubberneck]

Got in on the group purchase a while back for the EDM's. Kept hearing all the hype and decided what the heck. Brown truck showed up at work today at 1:30. By 2:30, had the mach 4s installed and truck running again. Couple of observations. Power is definitely up. Havent dynoed, but the speedo sure gets up there in a hurry compared to my old DD3's. They seem to be just as driveable as the DD3's were around town with the drag comp off. I will have to reserve final judgement on that for when we see a good hot/humid day, thats when i notice the most smoke problems. I'm seeing 3-4 more PSI boost at all settings of comp with my standard housing and wheel B1. EGT's are up, but staying in the 1500 range. (it was 64 degrees ambient today, and there was lots of traffic preventing me from making a good long hard pull into the triple digit speed, so we'll see what EGT does then. ) I'm kind of surprised, the B1 actually cleans these injectors out quite well, only a slight haze at WOT. I guess that leads me to my only dissapointment. I think i should have gone with the mach 5's. I didn't because the recomendation was that mach 4's were the max without twins. I guess I'll have to trust that recomendation as i certainly haven't dynoed as many combinations as those in the "know. " The B1 seems to be handling the job just fine, and i cant see it not handling more. Anybody have mach 5's and a single care to comment?? Something else that i noticed is that the idle is much smoother on my truck now. I didn't expect that. My truck is one of the ones that tends to get the rough "romp romp romp" idle the bigger injector i go. (Super mentals did it very badly in my truck) One last thing is that idle EGT and EGT at cruise are down. Better burn or?? Overall I like them. Still thinking i should have gone bigger, but I guess that's normal for power psycho.

 

[Forrest Nearing]

the grass is always greener... I'm a fan of going big and TRYING to regulate EGT's w/ the right foot, but...



sounds like you've got a better burn going!



wish I could afford some real injectors!



Forrest

 

[Bob Wagner]

There is only a 10hp difference between the Mach 4's (150HP) and Mach 5's (160HP)



Glad to see you are happy with your purchase

 

[willyslover]

did you keep the smaller ones for the heavy 5er pulling ?

 

[rubberneck]

Gary, yep kept the smaller ones. I might be totally nuts here, but i think with the right turbos (note i said turboS) i can tow with these. We will find out, i'm determined to do it. To those on the fence, I would say i'm happy with these. I dont have a lot of mileage on them yet, but i like how smooth the truck feels with them. If i cant tow with them, i think i might buy a smaller set to tow with and sell my dd3's, just because of how smooth these run. I think a set of mach 2's and my other mods would make a badazz tow vehicle

 

[rubberneck]

Originally posted by Bob Wagner

There is only a 10hp difference between the Mach 4's (150HP) and Mach 5's (160HP)



Glad to see you are happy with your purchase

Ok ok, guess i need the twins and mach 6's then, and NO2 and water/meth, OH nevermind. LOL

 

[Bob Wagner]

I just downsized to Mach 2. 4's yesterday for towing season. These are going to be sweet for towing.



I tow a 30' 10k+ 5er

 

[rubberneck]

Cool, I might follow, my fiver weighs 14k

 

[willyslover]

I'm in at about 16K fully loaded [and you can be sure my wife will make sure it's fully loaded LOL]

 

[kbond]

Originally posted by Bob Wagner

There is only a 10hp difference between the Mach 4's (150HP) and Mach 5's (160HP)



Glad to see you are happy with your purchase

Why does the site say 180 for Mach 5's?

 

[Bob Wagner]

Originally posted by kbond

Why does the site say 180 for Mach 5's?

My mistake, I forgot Don~ did change that rating. I've adjusted my schedule.



sorry for the misinformation

 

[kbond]

mach 3 to mach 4.5's?

So is it still true Don can make my 3's, 4. 5's?

 

[Bob Wagner]

Re: mach 3 to mach 4.5's?

Originally posted by kbond

So is it still true Don can make my 3's, 4. 5's?

I will have an answer in a minute

 

[Bob Wagner]

pm sent

 

[kbond]

Originally posted by Bob Wagner

pm sent

Thanks Bob. I'll be ready once I have the twins installed. Keep you posted.

 

[rubberneck]

Originally posted by willyslover

I'm in at about 16K fully loaded [and you can be sure my wife will make sure it's fully loaded LOL]

Dang gary, what did you buy?? Must be huge. But then again i guess you old retired guys have nothing better to do than to wander around living in your trailers. LOL