7.3+75psi+400cc=broke rods?

[Short Bus]

I'm not dragging anyone through the mud but IMO the are glorified cat ****. Had several trucks cone in with broke valve terrain so I got part numbers from HRT as to what's in my build. Direct drop in and absolutely no problems. My engine has seen 4500+ Rpms combined with 80+ psi boost when the twins were on. Going on 3.5 years now since engine was built, currently in the 550-650 hp range.

 

[slim613]

my truck will medaily drive and towing my mud truck to drags everyone once in awhile i gotta pull people out of the mud BUT it wont be up the drag strip but a few times to see what she will do and about 500-600hp i think


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[blcsmok]

Why do you say that about 910s? Just wondering is all cuz a lot of people recommend them on a daily basis..

comp 910s are't made for a 7.3 , big block chevy if i remember right , they're a close fit as far as specs but they require shims, i wouldn't run or recommend them. They dont have as much seat pressure as the other brands , i run Irate and there a high quality spring no complaints, plus they are a beehive. If u want to spend the money hypermax did a couple tricks on the way they hook to your heads and lighten up your rotating weight.

 

[isootmypants]

I have Crower vs and stock valves. Got them from WOP. My motor has seen 4750, numerous times.

 

[lincolnlocker]

I'm not dragging anyone through the mud but IMO the are glorified cat ****. Had several trucks cone in with broke valve terrain so I got part numbers from HRT as to what's in my build. Direct drop in and absolutely no problems. My engine has seen 4500+ Rpms combined with 80+ psi boost when the twins were on. Going on 3.5 years now since engine was built, currently in the 550-650 hp range.

Id take a pm on more info on that setup.

Why do you say that about 910s? Just wondering is all cuz a lot of people recommend them on a daily basis..

comp 910s are't made for a 7.3 , big block chevy if i remember right , they're a close fit as far as specs but they require shims, i wouldn't run or recommend them. They dont have as much seat pressure as the other brands , i run Irate and there a high quality spring no complaints, plus they are a beehive. If u want to spend the money hypermax did a couple tricks on the way they hook to your heads and lighten up your rotating weight.

So your saying UNSHIMMED 910's are no good? But properly shimmed to 130lbs are ok.

live life full throttle

 

[slim613]

Id take a pm on more info on that setup.

So your saying UNSHIMMED 910's are no good? But properly shimmed to 130lbs are ok.

live life full throttle

i know i gotta run 0.030 shins with 0.450 lift at 125lbs for stage one cam


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[psduser1]

Short Bus, you have a pm.

 

[m j]

there is a lack of info on better springs.
people seem to want to capitalize rather then share the info

 

[97stoker350]

Yes. You hear about the bad when 910s work for alot of people and then you ask an alternative and everyone shuts up

 

[isootmypants]

I have Crower vs and stock valves. Got them from WOP. My motor has seen 4750, numerous times.

This

 

[V-Ref]

Yes. You hear about the bad when 910s work for alot of people and then you ask an alternative and everyone shuts up

These springs are the ones you want. Call Crower @ 619.661.6477

Here's the quote from WOP about the springs from back in the day:

"Hey Timothy-

I spoke with the spring manufacturer and got the specs on those springs.

Seat pressure is 145
Installed height is 1.935"
Coil Bind is 1.070"


Zane says there isn't a big enough cam in the world to send those springs into coil bind. Those are the same springs we run in our Dragster with our performance race cam and it's been over 5000rpms with no valvetrain issues."

http://autorotate.smugmug.com/photos/i-sWbgvLJ/0/X2/i-sWbgvLJ-X2.jpg

http://autorotate.smugmug.com/photos/i-q9zSTQ6/0/X2/i-q9zSTQ6-X2.jpg

 

[97stoker350]

What's the price tho haha can't really beat 910s there

 

[V-Ref]

http://autorotate.smugmug.com/photos/i-DWfQDPt/0/L/i-DWfQDPt-L.jpg

$140 from Jake

OR...???

You'll need to nug out actual valve lift, and BP for your truck to see what you need for installed seat pressure and bind height. There's no magic to it.

Swamps has done a real nice write up on the math behind it. You might decide 910s are right for you.

http://www.swampsdiesel.com/site/pdf_instructions/7.3L_Stage2.pdf

 

[slim613]

http://autorotate.smugmug.com/photos/i-DWfQDPt/0/L/i-DWfQDPt-L.jpg

$140 from Jake

OR...???

You'll need to nug out actual valve lift, and BP for your truck to see what you need for installed seat pressure and bind height. There's no magic to it.

Swamps has done a real nice write up on the math behind it. You might decide 910s are right for you.

http://www.swampsdiesel.com/site/pdf_instructions/7.3L_Stage2.pdf

il be runnin a stage one cam but not too hi in HP levels and only 45 psi of boost, gearhead recommends the 910 and i think the 0.030 shims ans bigger push rods just dont see many runnin a stage one cam but u cant use stock springs with jt


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[97stoker350]

I was thinking about getting a cam Idk tho

 

[Powerstroke Cowboy]

I was thinking about getting a cam Idk tho

I would. If you have the engine out what can it hurt? If anything it will help you use the fuel you have better and help keep smoke and EGT's down. The air Improvements you can do to the engine the better off you are.

 

[Magnum PD]

My beehive springs didn't cost that much.

 

[97stoker350]

I want a swamps cam but they are so damn expensive. Do they sound like a cammed gas motor or just the same

 

[Powerstroke Cowboy]

Depends on what size you go with. But most of that lope can be tuned out of it. I would say there smaller ones that do not need the pistons cut will not lope.

 

[Magnum PD]

DI can custom grind your cam.