Engine/Transmission (1994 - 1998) Power for 98 12 Valve

[TLadd]

I've got a 1998 Dodge Ram 12 Valve 5 spd. with the BHAF, straight exhaust, and star wheel full forward. Looking for extra power. What should I do to put the truck to about 300-330 HP. Also at what power level does the stock style clutch start to slip. I rarely tow with the truck and if I do it is only a 20 ft. car trailer.

 

[Olmsted]

Fuel Plate and GSK

Call TST Products and talk to them. You can do a fuel plate and Governer Spring Kit so it can rev higher. Might need some valve springs if you really want to rev it up. Get a pyro gague so you don't melt a piston. Have fun.

 

[JoshPeters]

I'd recommend a 10 plate. I'd put it around the stock location. A Governor Spring Kit (GSK) will really wake the truck up as well. Like was said before, if you want to spin 4,000rpm (they sell kits) you need to replace your valve springs. The Stockers are good for around 3500rpm or so. After that they float.

That will be about the limit of the clutch, if you slide that 10 plate forward. Get a clutch and some injectors and your at an easy 400hp.

JP

 

[w-cummins]

I'd recommend a 10 plate. I'd put it around the stock location. A Governor Spring Kit (GSK) will really wake the truck up as well. Like was said before, if you want to spin 4,000rpm (they sell kits) you need to replace your valve springs. The Stockers are good for around 3500rpm or so. After that they float.

That will be about the limit of the clutch, if you slide that 10 plate forward. Get a clutch and some injectors and your at an easy 400hp.

JP

That will be the end of the clutch for sure. The #10 with out the springs will eat the clutch no problem in the stock position. I started with the #11 plate and that was a nice sweet deal ... then the #10 plate and bye bye clutch. Also don't kid your self into thinking that you will drive it easy to save the clutch either. :-laf:-laf

William... .

 

[Olmsted]

This Just In.....

I just installed a TST #10 plate and a 3K GSK this weekend and it made an unbelievable difference! I'm amazed at how much performance you get for the money with this setup.



I'm not sure what the performance numbers are supposed to be but this thing runs so well that it's like a whole new truck. It pulls great up through the RPMs and has gobs of power. It idles perfectly and has minimal smoke except for a small puff if I gas it hard off idle - 'er should I say "diesel" it hard off idle.



I owe it all to the TDR. Folks on here have posted enough information that I was able to search and have every question answered. Thanks everyone.

 

[WShupe]

I'd recommend a 10 plate. Get a clutch and some injectors and your at an easy 400hp.

Good waste of money buying a fuel plate, I've done 400hp with stock injectors on a 175hp '95. Maybe you can re-explain to me how to build a performance motor for the 12v application including the 14mm headstuds?

 

[Hammer]

Good waste of money buying a fuel plate, I've done 400hp with stock injectors on a 175hp '95. Maybe you can re-explain to me how to build a performance motor for the 12v application including the 14mm headstuds?

So then IF you made what you claimed here then do you not think that maybe,just maybe,it would have been alot easier to explain what YOU did to make the big power out of your 95 with stock injectors,instead of criticizing someone who was trying to help?... ... . Andy

 

[WShupe]

So then IF you made what you claimed here then do you not think that maybe,just maybe,it would have been alot easier to explain what YOU did to make the big power out of your 95 with stock injectors,instead of criticizing someone who was trying to help?... ... . Andy

No, this is an unfinished topic from another discsussion. There is no IF about it, 400hp uncorrected with a bad liftpump, 2095 rack plug, ??GSK, 022 dv's, stock holders, no plate, 19* advance, HX35 w/18. 5cm turbine housing. 500hp is possible out of an 887 equipped truck with stock injectors, stock headgasket, and 18* advance.

 

[arthr31]

No, this is an unfinished topic from another discsussion. There is no IF about it, 400hp uncorrected with a bad liftpump, 2095 rack plug, ??GSK, 022 dv's, stock holders, no plate, 19* advance, HX35 w/18. 5cm turbine housing. 500hp is possible out of an 887 equipped truck with stock injectors, stock headgasket, and 18* advance.

I'm pretty sure in saying this, but I think most people here run some kind of fuel plate, whether it's a 6, 10, 0, 100, etc. No plate seems to be way less common.



And, if you have an unfinished topic/discussion from another thread, why muck up this thread? Take it offline. :-{} OK?

 

[WShupe]

I'm pretty sure in saying this, but I think most people here run some kind of fuel plate, whether it's a 6, 10, 0, 100, etc. No plate seems to be way less common.

Most would be suprised to find out how little of the fueling range is controlled by the fuel plate.

 

[arthr31]

Hi,

I'm interested. Can you point us in the direction of some good reference/reading on that? thx!

 

[WShupe]

If setup properly the AFC controls the fuel curve, then if the plate is used it acts only as a rack stop short of the rack plug.

 

[Olmsted]

Darn, I got ripped off!

I don't feel like I got ripped off at all. I don't doubt that there are other ways to make big power. For the time and money, I'm stoked at how well I'm running. I spent a Sunday tinkering on my rig and Monday I was smiling all the way to work.



So, who can tell me how to make my 12 valve run this good for $300 bucks and an afternoon of light work?

 

[WShupe]

So, who can tell me how to make my 12 valve run this good for $300 bucks and an afternoon of light work?

I only spend money on springs and rack plugs, from there maybe some machining or EDM work.

 

[Olmsted]

I only spend money on springs and rack plugs, from there maybe some machining or EDM work.

Without divulging your competition secrets, what's the general idea on the setup you are running. No fuel plate? How does the rack plug work? How fast are you spinning your engine? Valve Springs and GSK?



Sorry to hammer you w/ ?? I just entered the performance world last weekend.

 

[WShupe]

Depending on how much rack travel you are looking for I either use a #0 plate as a rack stop, or no plate and I use the front plug as a rack stop. The 2095 rack plug is 2mm deeper than the stock 2000 rack plug, but it is not to be used on the 215hp(887-913) injection pumps due to the retard notch in the plunger head. The GSK issue is still being worked on, the trick is to allow a lot of rack travel at low RPM and still sustain fueling at higher RPM. Most motors on the street don't make much power beyond 3200RPM, but I normally use atleast 60psi springs on the exhaust valves.

 

[JoshPeters]

Leave our other conversation where it was.



If you have an issue with me or the advise I give, take it to PM's. I walked away from that conversation for the pure and simple fact that Yes you can do it how you recommend. You can also do it how I recommend.



There is more than one way to skin a cat. Taking it to every internet forum where I give advise is not the way to do it. Your just making an @$$ of yourself.



Most of the advise (like in this case) I'm giving to a novice. There is no need to over complicate the issue. A fuel plate is cheap and easy. It also comes with directions and pictures. Not everyone has seen a P7100 injection pump, nor are they nessissarily computer literate. Once they get the taste for easy power, they can either ask for more advise, or they will search and find out themselves.



When they start asking again, you can spout off all you want about how stock head bolts and headgaskets will hold 800hp. In the mean time I'm going to keep giving good, solid, RELIABLE advise to people.



JP

 

[FDavid]

the trick is to allow a lot of rack travel at low RPM and still sustain fueling at higher RPM. .

0 plate ff, foot lever removed from afc

 

[WShupe]

Your just making an @$$ of yourself.



In the mean time I'm going to keep giving good, solid, RELIABLE advise to people.

I'm an @$$? Reliable advise? You argued about Jeff's truck when you did not have any first-hand knowledge and I surely do. I'll leave our other conversation out of this, but keep reading on the internet and see who is running stock headbolts regardless of your opinion.

 

[WShupe]

0 plate ff, foot lever removed from afc

If I choose to use the plug as a rack stop I do not use a fuel plate. I often will modify the AFC to allow more travel and more fuel at low RPM, but I do not remove it completely. Adjusting the governor arm to ride on the AFC lever will allow the fueling curve to be very smooth and prevent the governor arm from hanging on the bottom lip of the fuel plate if used. Governor tension is the key to adding rack travel at low RPM.