Cummins Big Cam IV - Turbo Whistling

Driving up and down a hill. This is a 1989 International 9700 with a 300hp Cummins.

Category:

Autos & Vehicles

Tags:

• Cummins
• Turbo
• Ntc
• COE
• bobtailing
• cabover

[bigred42091]

The way that thing bounces like that. It must have spring suspension.

But good truck though. Love that sound

[Vista0009]

But those are the front springs though, would it really be any different if it was air ride?

[priapusfudd]

Unless the engine was replaced, that is not a big cam. JBH trucks and most big companys used cummins' 300 formula engines. The formula engines, also called squeezers ( cuz they squeezed every drop of fuel to optimize mileage) had smaller cams and heads 1/2 the size. They were about the most popular engine on the road until Detroit came out with the electrical controlled 60 series.

[Vista0009]

I think you might be right i do remeber reading Formula Cummins somewhere, but shouldnt it be a Big Cam if the letters were stamped on the drivers side of the engine block? I dont know I'm just asking.

[Jinete28]

@priapusfudd

I have a 1990 volvo and it has a 350 BC 4 formula, all this is writen on the engine.

[Vista0009]

Wheres BC 4 formula written?

[bonnevillessei]

you can always tell an old JB, lol! thatframe always be painted over to get rid of the orange/redish color. Remember when JB and Schiender purchased the 9700 48" sleeper with the longer ferings to make it look like 110" sleeper? lol!

[Hotrodx199]

Love the holset whistle. Tell your dad to put some bitchin' straight pipe on there.

[quadcepts]

Sounds Awesome. Nice truck

[TheDavidpayne]

I wana buy it :P

[nokiaicon]

@Vista0009 It's a Big Cam just a formula model

[fishtankfreak]

@gregrory89 The whistle is the turbo in the Cummins diesel. 

[SeaDollarsBertram]

@fenderpaman16 I see a few every now and then near Houston

[eatoncorona]

I love these flat top 9800s. If I can ever find one, I'd love to stick the cab on a longer frame, like maybe five feet longer. I only run across the high profile units with the double bunks. You have a great looking truck. I wish I had my head on straight 15 years ago, I should have bought one then. They were on the roads by the hundreds at that time.

[floddy3831]

real ugly truck !!!!

[fenderpaman16]

Sounds great I miss those old cabovers now they are far and few

[gregrory89]

why does it whistle

[Ladylawless8]

@Vista0009 i would say on the aftercooler, we have a 315 formula like that. its a low-flow bc4.