Engine/Transmission (1998.5 - 2002) All the hype about Mach IV's.....

[SMoules]

..... is underrated. I finally installed mine and wow!!! These things are everything that has been said about them and then some. They are freakin awesome. The truck runs so much smoother from 0-100. The throttle response is way better and my SPS 62 spools even quicker. Oh yeah, and that is all without the comp on. When I say quicker, I mean both in the lower rpm's it starts spooling and from 10-45 psi it is just lightning quick. I know I am really excited about these but the machs or the comp running by itself, I would choose the mach IV's. But no one is taking away my comp because together with the SPS 62, it feels like it should be illegal. It took about 5 weeks to get my Machs but it was worth it.

 

[Joe Mc]

Looking at doing the same set up - how the egts empty. Empty is all O'm concernt with since I don't tow - plan to run it down the quarter mile once I get the 5's and 64/14.



Let me know about the egts with Comp settings high 5/5 (or so) and low 1/3 etc.

 

[hdtrukn]

Just a thought !

Leave the 6's in and go with a SPS66.

Just remmember to hold on !!!

Scott

 

[BILLVO]

You have a similar set up as me do you get any lope at idle with the Mach 4? are they 150 hp sticks? I just went with BD xxxx155 hp sticks and I get a lope at idle the warmer it is out the worse it gets. I was going to go with mach 4 but my local dealer took my 90 hp in trade and installed the new 155's for $300 to boot. I am kind of wishing I would have gone with the 130 hp instead,

 

[BILLVO]

Just a thought !

Leave the 6's in and go with a SPS66.

Just remmember to hold on !!!

Scott

Maybe I am wrong but I believe his sig shows 1. 6's. I don't think he could get an sps66 lit to good with those. I just put on a silver 62 with 90 hp sticks and had to run the comp on 3x3-4x4 to get to 40 lbs boost on 3x3 it was WOT and week to get there. Now with the 155's it gets there real easy on 2x2.

 

[hdtrukn]

Sorry my BAD.

Read as 6's not 1. 6.

I am running 3. 8's and have no lope at idle. not much lag, but still gets pretty HOT.

Scott

 

[BILLVO]

Sorry my BAD.

Read as 6's not 1. 6.

I am running 3. 8's and have no lope at idle. not much lag, but still gets pretty HOT.

Scott

Your sig shows 200 hp injectors. I thought that 200 hp injectors were mach 6's.

 

[hdtrukn]

their in the tool box right now.

just have not updated sig

sorry

scott

 

[elandon1201]

Your sig shows 200 hp injectors. I thought that 200 hp injectors were mach 6's.

MACH 5's are 200HP the Mach 6's are 220

 

[16919]

I have a set of m4s waiting to be installed, after my shiny new turbo :-laf

 

[elandon1201]

You will not beleive the Difference !!!!! I am excited for ya keep us posted

 

[rubberneck]

My truck is an ETH, so im not sure the EGT will be the same, and I have mach 4. 5's. From dead stop, hard run to 100 will get me 1550-1600 with drag comp 5x5 and full size B1

 

[SMoules]

egt's are easily controlable. With comp on 5x5 WOT it will hit 1500 for only a second or two but then the sps 62 just cools everything down. Yesterday I took the truck for a drive up the Sierras, for most of the trip I had the comp on 1x1 or 2x3 and it is just unbelievably fun. The truck seems to want more grade to climb, thats how well this setup is working. The only thing to watch for when going up and down those hills with the comp on is when the truck goes into overdrive it, it smokes a little. I had to keep it out of OD until I had good rpm's so the people behind me didn't keep getting smoked. Other than that it is easily controlable. I did turn the comp off and there was less smoke on the final shift.

 

[SMoules]

They are 150 sticks and not much of a lope if any. I guess I really have not payed any attention to that yet. The only thing that I did notice is when I was going down hill with my foot barely on the peddle, I would hear and feel like a slight little rev every 3- 5 seconds. Like I said though it was only when I was going down hill barely leaning on the peddle. As soon as I would take my foot off it would go away and as soon as I would give a little more acceleration it would also go away.

 

[NDaniels]

This is sounding good, I just got my sps62 in the mail and planning on using the m4s along with a cam and o-ringing (maybe a little port/polish while getting o-ringed). I'm hoping the cam will help to keep egts in check- 1500* is a little higher than I'd like to see. Keep us posted, Thanks Nick.

 

[OPoole]

The f1 mach injectors are the best injector in my book and we are working on keeping them instock for faster shipping to customers! Don is slow but builds great parts!

 

[RLohman]

As far as I am concerned Mach Injectors are the way to go... my dad has them in his 02', Juice with Attitude, Mach 4's, intake and exhaust and a 35" tire and stock transmission and put 491 hp on Floor It Diesels Dyno. Remember you get what you pay for.



Hey ELandon how is that head gasket?

 

[Timbeaux38]

Don is slow ... ...

He cant help that :-laf He does seem to have those injectors down to a science though.

 

[Rebel Ram]

Steve! Youve been busy! I'll be home till next wednesday. Stop by and take me for a ride.

 

[elandon1201]

As far as I am concerned Mach Injectors are the way to go... my dad has them in his 02', Juice with Attitude, Mach 4's, intake and exhaust and a 35" tire and stock transmission and put 491 hp on Floor It Diesels Dyno. Remember you get what you pay for.



Hey ELandon how is that head gasket?

I Blew my Headgasket on christmas eve, I shouldnt have to tell you that, you run a 6. 0 you should know all about it :-laf