Engine/Transmission (1998.5 - 2002) Mach 4's Or DPP Stage 4's?

[16919]

tryin to keep it alive. Everyone else is welcome to give opinions.

 

[Warpig]

I just installed F-1 Mach 4's yesterday (thanx MillerTim). Prior to that I had stock injectors, Blur Chip FMS, Smarty (always on SW9) and an II hrvp. Pulling off from a stop (normal driving) I would really have to be carefull if I didn't want to smoke the road out. If I wanted to smoke the road out... wot from a stop would do it. After the install I noticed that during normal driving it will not smoke and I don't really have to watch my foot. If I want a smoke show, all I have to do is hammer it and they will turn day into night :-laf The F-1 Mach 4's are much tamer to drive with my setup than stock injectors, but at the same time they can be Al Gore's, and the rest of the big lib's worst nightmare. I almost forgot to mention that they are they best mod I've done so far..... Thanks to Don M for making a great injector, and Bob Wagner for getting them to me quick.



Tim W.

 

[16919]

Thanks for the response. It looks like I MIGHT sway towards M4's. Keep it coming!!

 

[DWeiler]

Same here,Smarty sw#7,Mach 4's and B1-2 is a good combo in my books,if you drive without mashing, no smoke but stomp on it and i can black-out both lanes beside me--"smoke at will". This summer i towed with them,Smarty#3 though and ran all day,some flat some good hills,just dropped a gear on the steep hills and still ran ok-65mph---no smoke on the back of truck or traveltrailer. My 2-cents on the F1-Mach 4's. LaterDW

 

[bbodammer]

f-1 the only way to fly... thought I was nuts going with 4's and towing everyday, but don built me some customs and the temps stay cool and the sticks run clean... of course I can still fog the night by dialin' up the comp :-laf . . can't go wrong with don and everyones input helped me decide

 

[Joe Mc]

James - I went with F1 1. 6s and am really displeased . . . that I didn't get 4s to begin with. Now I'm waiting for the right time to get them. When I get the bigger turbo - still undecided - I'm going with 5s.



Kelly4463 forgot to mention something - when he was pulling the egts he mentioned earlier he was towing his 5th wheel Cross Roads trailer (I'm guessing about 30+ feet long) on the PA Turn Pike going up a 2-3 degree grade @ 65 mph. I was following him there and the only time he would smoke was when he got into it. When he did get into it we're talking freight train black outta both stacks - oh baby :-laf

 

[DWeiler]

James - I went with F1 1. 6s and am really displeased . . . that I didn't get 4s to begin with. Now I'm waiting for the right time to get them. When I get the bigger turbo - still undecided - I'm going with 5s.



Kelly4463 forgot to mention something - when he was pulling the egts he mentioned earlier he was towing his 5th wheel Cross Roads trailer (I'm guessing about 30+ feet long) on the PA Turn Pike going up a 2-3 degree grade @ 65 mph. I was following him there and the only time he would smoke was when he got into it. When he did get into it we're talking freight train black outta both stacks - oh baby :-laf

Joe Mc----i made the same choice/mistake as you with my 1. 5's(for sale now in TDR classifieds),if i had stayed with my stock HX35 then i would of stayed with the Mach 1. 5,but more air--- room for more fuel :-laf :-laf :-laf .

 

[R-N-R]

How would each injector compare in smoke level to DD3's? Does any one know?

I ran DD3s before the Ms, there is no comparison, the M4s (mine are 4. 5s) enable significantly improved smoke control while also providing more power. My theory is that they flow in a manner that enables improved atomization thus a cleaner burn, smoother power, and less smoke unless desired. I am definitely not an injection expert by any stretch, but I believe I have a qualified SOP meter. :-laf

 

[16919]

Do you think I could run the 4. 5's without studs? i have a smarty and a APB box, soon to have a sps 62/14.

 

[Warpig]

What's the difference between 4's and 4. 5's ??



Tim

 

[16919]

I think they are 175 hp.

 

[DWeiler]

JamesThomas are you going to tow with the Mach 4. 5,cause with mine and my elevation i'm at my limit in size(EGT)---even with my B1-2. I have more than enough power to tow what i own and even less towing as of this year cause the rv is parked at the lake for good. Aren't Mach 4. 5's might be at the limit of the vp44?

 

[16919]

No I never tow anything. I might just stay with the 4's.

 

[HeavyHauler]

Do you think I could run the 4. 5's without studs? i have a smarty and a APB box, soon to have a sps 62/14.

James - unless you are planning on running some off-the-wall timing advance with your injectors, it will be your boost and drive pressure (turbo choice) that determines whether you need any head work done.



Everyone seems to consider the magic number 50psi for our engines. If you end up with the SPS 62/14, keep the wastegate set between 40-45 psi and you won't have any problems with the head lifting. Most aftermarket turbos are set in this range in the first place. There aren't many that still provide good air passed 50psi in the first place.



So your injector choice has nothing to do with needing studs or o-rings, provided that you choose a turbo with a low drive pressure ratio (like the SPS).

 

[CumminsAholic]

James, The 64 works good. It spools quick in my opinion and I can't get it too hot, even with a big load behind. A 62 would probably be good too, a little quicker spool and probably less haze. I went with the 64 just in case I go with more fuel... . who knows M4. 5's may be in the future, I'd love to try a set to see if they smoke a lot more than the 4's. If they didn't I'd get a set and sell my 4's. . ya can never have enough power. As for studs. I'd do them, but that's just me. I blew a head gasket with the stock turbo, under 40 psi. It depends on your luck. With a bigger turbo and less drive pressure you should be ok, but if you have the $ I'd put the studs in, then again if you go that ar you may as well o-ring it. The best thing to do would probably be to leave it until/if it blows and if it does do the studs and o-rings and don't worry about it.

Corey

 

[zstroken]

Have customer who has an 01 ETC and he runs 50-55 psi every hook on stock bolts torqued to 120 psi. Not saying this will work for you, he has a set of studs ready to go in. We are just doing it for fun!

If he gets the studs in before the HG goes, we will just stick the studs in. If it blows, we will go with a fire ring or oring. He hasn't told me which route he wants to go.

 

[MRoberts]

Ddp!

First, I have never owned a set of F-1's. I went from stock to DD2's and from there I went to DDP J-48's (I believe these are now called Stage 5). I love them and wouldn't consider switching. Why? Because they give the power I want, they improved the idle, they run smooth, the customer service I have received is top notch and they are very easy to drive daily with. I can smokeout tailgaters if I need to and if a trooper is behind me, I can keep it clean.



I live a few miles from Lenny and his crew, if I have a question or problem they take care of it. I feel like I get straight information, they don't try to sell me on products and they have a good time doing what they do! One of the great things about them is that they don't bash other vendors, they let their products speak for themselves.



I've never heard a bad thing about F-1's, so I think you'll be smiling no matter which way you go. Have fun!

 

[16919]

Thanks for all the info. Keep it coming.

 

[16919]

Now that I think I have my mind made up on injectors, I need a turbo. I am gonna get on before the group buy cause I think the stocer has about had it. I have been looking at the sps 62/14. Do you guys think that will be good for me? I have a smarty and an APB box as well. After the turbo and injectors I am done with mods other than wearable items (thats what everyone says, I know). What is the difference/bennefit in the sps over the regular ps?

 

[R-N-R]

What's the difference between 4's and 4. 5's ??



Tim

4s are rated 150hp and 4. 5s are rated 165hp.