Gov spring kit install, easy,easy

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Put my governor spring kit and AFC kit in last night. This was alot easier than all the posts led me to believe. I had all injector lines off too for 370's install so that may have helped. I had to install one set of springs over again because the directions said to remove "THE" (I assumed 1pc) bottom seat, so I did, then installed the new seat and springs. I rotated to the other set, removed the springs and bottom keeper. Hey! wait a sec. There are two pices to the bottom keeper on this side and I only removed one from the other side. Maybe that is why the spring was soooo tight. #ad
Let's do it again!

Just be sure to remove both pieces or you probably will have no governor at all.

Easy install, go for it.
LarryB

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1972 Chinook class C with 96/215 5spd, 4/5" exh, 4"BD, MagHytec, 85gal fuel, K&N RE0880, AutoMeter, 370's, BD gov kit, BD afc kit, yada-yada-yada
www.fostertruck.com/cummins

 

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Larryb,Was it worth the $ and effort?what rpm will it pull at in forth now?

 

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Great to hear its an eaiser job than I expected.

Let us know how you like it.

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Bill R
94 2500 SLT 4x4 5 Speed, 3. 54 LS, JRE 4" exhaust, Autometer Pyro, Boost & Water temp gauges, Bosch 215 HP injectors, Timing @ 14. 7 º, JRE Stage III #4 plate 270/675, AFC spring kit, Scotty Air, Bully Dog Propane Injection, Roadmaster Active Suspension, Optima Red Tops, Geno`s Exhaust Blanket,Espar Heater (won it!), Synthetic lubes throughout.

 

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Since I put the 370's in too I have way more power than I need. I seem to have a bit of a problem with it being too touchy right off idle. You feed it just a little and nothing happens, feed it a little more and WOW! Too much response. It makes it hard to drive down my driveway without lurching all over. I still have not adjusted the afc any. After the first test ride I immediately slid the stock plate back from stock position about . 040". It helped ease my clutch worries but the low speed problem is still there.

The thing I like best is It just keeps reving if I want. I certainly don't need a gear splitter now. The power band is really, really wide. I'm not always bumping the governor in the low gears. I can keep it right in the power without a problem. For me it's well worth the money. I can now pull easier and don't need to think about a $2,000 splitter.

I wanted the 60# springs for my e-brake anyway so the gove kit was an easy decision for me.

Now I just need to bump up the timing and go do a mileage check. #ad

 

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LarryB,
It is nice to see someone else thinks the governor springs makes the truck too responsive. I thought I had done something wrong during the install. Like you said, it goes from idle to whole lotta power with hardly any throttle movement.

I recently installed delivery valves in my 160hp pump and this smoothed the transition quite a bit. My pump wasn't fueling the 370's properly at light throttle so the surge was really dramatic.

Glad to hear I'm normal. Thanks for posting the honest feedback. It is good for future bombers to hear both sides of the story before making the decision to buy.

-Chris

'94 2500 4x4, 3. 55, auto, DTT TC & VB, 4" exhaust, 370's, hi-perf. delivery valves, Gov spring kit, custom pump mods, scotty air.

 

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Strick-9,

How were the delivery valves to install?

Any tips or things to watch out for?

I wonder if the Gov spring Kit can be adjusted to make the throttle reponse smoother?


[This message has been edited by HEMI®Dart (edited 11-10-2000). ]

 

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S9
Did you install the 370's at the same time? I know better than to make 2 changes at once but I guess I'm too thick headded to learn. I now am not sure if it is the gov kit or 370's.

Yea I hope I can smmoth out the response too. It really takes off the instant the boost needle comes off bottom. According to what Joe D. has written, timing advance trades bottom response for top end and MPG so this would be the perfect trade for me. I guess I'll have to take the $$ hit and buy the miller timing kit. (no rhyme intended #ad
)



[This message has been edited by LarryB (edited 11-10-2000). ]

 

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Please keep us posted Larry. I was thinking on going this route..... if the money ever loosens up. #ad

 

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Joe D. Just advanced my timing to 16 deghere is what I noticed... .

There is a slight loss in low end torque not response. I get boost just as fast as before the loss is felt after the boost is in not preboost. If anything it feels stronger preboost. It runs much stronger after 2000 RPMs to the governer (3100) and it seem to like to run up there in the high RPMs(2000+) better. I find myself staying in 3rd longer now. Response preboost is controlled by the AFC spring and adjustment. When I did my 370 injectors, I also did the 16 CM2 housing and by giving the AFC spring about 20 turn rich got rid of all the lag and the response is super. I would suggest the TST AFC spring kit with the medium spring adjusted about in the middle to start. Since doing injectors and the turbo housing I have had mine adjusted from completely loosing all rear view mirror sight from smoke to finding where there was lag.

Have fun and bombs away.

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EAT'M UP
97 2500 Club 4X4 3. 54, Forrest Green/Driftwood, LSD 5 speed, & Psychotty Air System, TST #11, 370 HP injectors, timing at 16 deg. , 16CM2 housing, AFC spring kit, Geno's Exhaust Blanket, TST EGT gauge & 0-60 boost gauge in A Pillar, Cat-be-gone, 4" Dynomax Bullet muffler, Crome 4" turn down, AmsOil Through out, Geno's trans filter kit, AmsOil Bypass system, Lund Winter front, Leer Cab Level Shell Driftwood , 255/85R16, Dyno'd 342 HP pre injectors & turbo housing *NRA/USPSA member and proud of it*

 

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After making some AFC adjustments I have found that with the housing and star wheel all the way forward I get no pre boost smoke. Seems like I'm not getting enough fuel pre boost. Maybe Ill try the softer AFC spring. Or am I thinking backwards? Will the softer spring allow fuel to be added at lower boost or do I need to go back to the stiffer stock spring to do that? I,m not quite clear on how the AFC functions.

 

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HEMI,
The delivery valve install is easy. Once you get the injector lines off there is nothing to it. The internal spring is a lot smaller than I expected. From what I had read, I expected when I loosened the valve holder a spring was going to shoot the socket wrench across the driveway. The spring inside is a tiny little thing. Maybe that is why people were so concerned with dropping it? Start to finish it took 1 hr and 10 minutes. A few of those were spent searching for the rear valve cover hold down nut. I dropped it and somehow it rolled down the transmission and nearly made it all the way to the transfer case!

I love the how smooth my truck is again. I took off to test things out and hit 42psi of boost in 2nd gear. Believe it or not I don't notice the low end smoke near as bad either. Maybe the fuel is actually popping the injector off properly and burning the fuel more efficiently?

Chris

 

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LarryB,
No, I have had the 370's in for nearly 5 months now. I try to keep my changes to one at a time too. Sure makes backtracking easier when you screw up! #ad


Seems odd that you aren't getting any smoke with the starwheel all the way forward and the 370's. To answer your question, a softer spring will not allow more fuel preboost, but it will allow more fuel during low boost (less than 10 psi). To adjust preboost fueling, loosen the locknut on the back of the AFC housing and turn the setscrew in a few rounds. The setscrew may have a tamperproof cover. If memory serves me correctly, it is a torx headed bolt.

Someone jump in here and correct me if I'm wrong.

-Chris

 

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Thanks for the tips guys.

The only thing I`m waiting on are the delivery valves. Ordered almost a week and a half ago. Still not here. #ad


I also got an HX40 16cm2 in route from Piers @ BD power. I will let you guys know how I like it. The midrange & top end accelleration should downright terrifiying #ad

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Bill R
94 2500 SLT 4x4 5 Speed, 3. 54 LS, JRE 4" exhaust, Autometer Pyro, Boost & Water temp gauges, Bosch 215 HP injectors, Timing @ 14. 7 º, JRE Stage III #4 plate 270/675, AFC spring kit, Scotty Air, Bully Dog Propane Injection, Roadmaster Active Suspension, Optima Red Tops, Geno`s Exhaust Blanket,Espar Heater (won it!), Synthetic lubes throughout.

370`s, Delivery Valves & HX40 16cm2 ready to install.
And maybe a Parachute?




[This message has been edited by HEMI®Dart (edited 11-10-2000). ]

 

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Chris
Very good! Thanks for the heads up. Man Oh Man it runs good now. Just like stock except lots MORE!!! I still don't have smoke, mmmm, seems odd.

How in the world can you guys drive a pickup with this much power and a big plate to boot. My plate is only stock and I got more power than I could ever use. I can't imagine more in a lighter vehicle. Mine weighs 9200#
I'm still at stock timeing too. WOW!!

I can't wait to tackle Grapevine hill #ad
Passin fords like they were standin still, telephone poles look like a picket fence, Son yure gonna drive me ta drinkin if ya don't stop driven that Hot Rod... . er ah... Dodge. #ad
#ad
#ad


[This message has been edited by LarryB (edited 11-10-2000). ]

 

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I finished my install of the gov spring kit a couple of weeks ago. I had read on the forum of somebody trying a couple of clicks tighter on the springs and I tried that. The truck was way to responsive (for me) right off of idle. I called BD and talked to a pump tech. I told him what the symptoms were and what I had done. I explained to him that the spring pack seemed a little loose without the extra clicks in there anyhow. He agreed that they should not be loose but they should be snug. I opened the pump up again and backed off the spring packs to . 039" from the . 070" that they were set to. That was the stock set up. The spring packs are snug. The truck is now much more manageable at low rpm's and the posi tire tracks out front are fading. . I am very happy with the kit. It allows me to rev further in the rpm range and negates the 3rd to 4th shift problem when pulling my 13K pound fifth wheel up mountain grades.




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98 2500 Quad Cab, 12V, 5spd, 4x4, HD Transfer Case, 370HP Diamond B Injectors, #4 TST, 16cm2 Housing, AFC Spring Kit, Governor "Modified", Walker Muffler, 285/75-16 BFG AT's, SS Tube Steps, Fifth Whl Hitch, Leather, CD, LSD Dana 80 Rear, 60 Front, Centerforce Dual Friction Clutch, Rancho RS9000 Shocks, Rancho Steering Stabilizer