American Truck Simulator

American Truck Simulator

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cat 3408
love too see kriech or odd fellow do a cat 3408 sound plenty of videos and samples.
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Showing 1-14 of 14 comments
Leetpandaz Jun 12, 2018 @ 5:23am 
Ya i want this engine too, but mainly theyre for the modded 389. There is a Detroit Diesel 8v71 v8 as an option.
Last edited by Leetpandaz; Jun 12, 2018 @ 6:17am
LarryA Jun 12, 2018 @ 8:07am 
3408 Cat would be great mod. Also like to see a 1693 T. 325 H.P and a 1693 T.A. 425 H.P.. Best engines Cat ever built. 270 T.A. Cat was no slouch in its day in the 60s. Easily turn it up to 300 H.P..

Leetpandaz Jun 12, 2018 @ 8:48am 
Originally posted by GoggleEye:
3408 Cat would be great mod. Also like to see a 1693 T. 325 H.P and a 1693 T.A. 425 H.P.. Best engines Cat ever built. 270 T.A. Cat was no slouch in its day in the 60s. Easily turn it up to 300 H.P..

Ya i like running some of the older engines, right now im using a DD Series 60, has good rumble and a great Jake. Before that i had a 3406 cat, n14 cummins and 444.
morrisonjake05 Jun 12, 2018 @ 11:38am 
Originally posted by GoggleEye:
3408 Cat would be great mod. Also like to see a 1693 T. 325 H.P and a 1693 T.A. 425 H.P.. Best engines Cat ever built. 270 T.A. Cat was no slouch in its day in the 60s. Easily turn it up to 300 H.P..
Oohhh there almost unheard of today them old motors
LarryA Jun 13, 2018 @ 6:30pm 
Originally posted by morrisonjake05:
Originally posted by GoggleEye:
3408 Cat would be great mod. Also like to see a 1693 T. 325 H.P and a 1693 T.A. 425 H.P.. Best engines Cat ever built. 270 T.A. Cat was no slouch in its day in the 60s. Easily turn it up to 300 H.P..
Oohhh there almost unheard of today them old motors

Yep, those engines drove Cummins & Detroit Engineer folks crazy.

270 Cat, Cummins 210, 220. then the 335, Detroit Screemin Jimmy 318 V-6 2 stroke.

1693 T or T.A. Cummins 335, 350, small cam then the large cam 400, KT 450, Detroit V-12

The Cat engines were painted white for trucks not yellow like the 3406 models.

Add a 5 & 4 or a 6 & 4 boxs perfect set up. 359 Pete with a 172 inch hood 245 wheel base.

Same sound file could be used for the 270 T.A. 1693 T or T.A. and the 3408 Cat engines. All three had postive fuel pressure pumps the fuel was metered at the pump. They used direct injection from the fule pump. Used Spray nozels in the heads in stead of Injectors like the Cummins and Detroit engines. Why they rattle. Cat engine sound like they are going to break untill they reach about 1100 R.P.M. then they smothe up. Best operating R.P.M. 1750 to 1800 shift at 1900...With a 5&4 boxs have a 250 R.P.M. split between the gears. 4:63 rears 5th & 4th over 63 M.P.H.
LarryA Jun 13, 2018 @ 6:50pm 
Why Cat engines came with a Retarder if you ordered one with. You cannot put a Jake Brake on an engine that uses spray nozzels instead of injectors it is impossible. Cat developed the Retarder for the 1693. Cummins had a Jake Brake on the 335 and up. You could put jakes on a Cummins 220. Cat did not use a Jake Brake untill they came out with the 3406 models. Cat did a way with the direct fule pumps and went with injectors. Huge mistake on Cats part. Issues with the cam followers on the 3406 engines.
morrisonjake05 Jun 13, 2018 @ 11:53pm 
Originally posted by GoggleEye:
Why Cat engines came with a Retarder if you ordered one with. You cannot put a Jake Brake on an engine that uses spray nozzels instead of injectors it is impossible. Cat developed the Retarder for the 1693. Cummins had a Jake Brake on the 335 and up. You could put jakes on a Cummins 220. Cat did not use a Jake Brake untill they came out with the 3406 models. Cat did a way with the direct fule pumps and went with injectors. Huge mistake on Cats part. Issues with the cam followers on the 3406 engines.
Your pretty damn correct there.. cat engines can handle a lot too throw anything on the ol girl she’ll soot.. odd fellows c15 sounds are pretty good... but like anything today though emissions this emissions that.. more sound deton... you must consider though back than they prob didn’t have as heavy loads like they do today. No need for the jake.. I do recall a lotta people in the yard, telling us they had brake problems because of people frying them up back then haha
LarryA Jun 14, 2018 @ 6:32am 
Originally posted by morrisonjake05:
Originally posted by GoggleEye:
Why Cat engines came with a Retarder if you ordered one with. You cannot put a Jake Brake on an engine that uses spray nozzels instead of injectors it is impossible. Cat developed the Retarder for the 1693. Cummins had a Jake Brake on the 335 and up. You could put jakes on a Cummins 220. Cat did not use a Jake Brake untill they came out with the 3406 models. Cat did a way with the direct fule pumps and went with injectors. Huge mistake on Cats part. Issues with the cam followers on the 3406 engines.
Your pretty damn correct there.. cat engines can handle a lot too throw anything on the ol girl she’ll soot.. odd fellows c15 sounds are pretty good... but like anything today though emissions this emissions that.. more sound deton... you must consider though back than they prob didn’t have as heavy loads like they do today. No need for the jake.. I do recall a lotta people in the yard, telling us they had brake problems because of people frying them up back then haha

Off Topic sorry...

It was an issue with brakes getting burned up if you did not have experience running mountains. In the Mile-High if you did not have a minimum of 2 years experience running to the west coast most companies would not consider you for a driving job. I.R.L.. Insurance companies had restrictions on driver qualifications as well un less the company was willing to pay the extra premimum. They started adding emission to the 1693 T & T.A. in 1974 because of California emissions law. But it was simple to bi pass the emissions consisted of a air actuator mounted on the left side of the engine. Put a rivot in the air line closed the actuator. In spectors never checked the air line. LMAO. In Colorado on state roads GVW 96,000. 36,000 per tandem 20,000 steer. Interstate GVW 73,280... On a good paying load the authoruty was in the ink pen. What weight laws are you refering to. LOL...14 Western States.

18 miles of 7 percent grade a jake or retarder. Was a common law requirement between companies, owner operators and independents out of Mile High (Denver, CO.).

On Topic.

Viper, Kretchum and odd fellows develop very good mods. Example Viper 389 Pete. If some one knows them maybe they could make the initial contact.

If they would agree to build the Cat Engines listed above for the SCS 389 and KW 900 of course the Viper 389. Like to see a 5 & 4 and a 6 & 4 optonal transmissions for the cat engine. Restrict to Other transmissions... 10 speed, 12513 and twin counter shaft boxs 5 & 4 or 6 & 4 had twin countershafts could with stand the torque. Rest of the transmissions were not developed back then. First was the Allison Automatic died to lack on interest. If I remember correctly been a long time.

Think the place to start would be to ask Viper, Kretchum or odd fellow. If they would make a firm commitment. It would be very generous on there part for the community.



morrisonjake05 Jun 14, 2018 @ 2:10pm 
To make sound mods I believe they need samples if not live recordings. One recording of start up and idle, another of the truck going up 4 on the bottom box.. and etc etc.. kriechbaum has a weird audio sound in between like he’s used a sound to keep the audio in flow... were odd fellow doesn’t.. kriech needs new start up and switch off sounds.. c15 needs attention.. twin turbo Acert.. turbo spool should be kicking in after 1200 revs. And make the cat more throaty down low. But I’m not complaining lol vipers 389 is one of my favourites tbh don’t mind the old freighters too.... loads and emissions referring to Australia is that’s where I’m from
morrisonjake05 Jun 14, 2018 @ 2:17pm 
Drove a freightliner fld with a 600 Detroit 16 litre.. lovely truck to drive, turns on a dime. Been around the clock once. Had a few issues with the turbo timer and the bastard useto freeze up the dash clusters ahhh... you couldn’t stall it being 600 horse
morrisonjake05 Jun 14, 2018 @ 2:31pm 
Cummins signature series 600 and so forth arnt too bad if you like changing the filters in the muffler all the time... but anyway..
LarryA Jun 14, 2018 @ 7:03pm 
Originally posted by morrisonjake05:
To make sound mods I believe they need samples if not live recordings. One recording of start up and idle, another of the truck going up 4 on the bottom box.. and etc etc.. kriechbaum has a weird audio sound in between like he’s used a sound to keep the audio in flow... were odd fellow doesn’t.. kriech needs new start up and switch off sounds.. c15 needs attention.. twin turbo Acert.. turbo spool should be kicking in after 1200 revs. And make the cat more throaty down low. But I’m not complaining lol vipers 389 is one of my favourites tbh don’t mind the old freighters too.... loads and emissions referring to Australia is that’s where I’m from

Australia is amazing country like to visit, wish list...

Yes that is correct. Might be able to record a 1693. T.A.. Need a yes for the MOD not a maybe. . Tractor been parked since 2005. Last time it was started 2011 maybe 2012? 1693 T.A. Engine has a air starter not electric motor. 74 359 Pete.

Originally posted by morrisonjake05:
Cummins signature series 600 and so forth arnt too bad if you like changing the filters in the muffler all the time... but anyway..

Be lost the way new tractors and engines are designed air shift transmissions.

vsTerminus Dec 11, 2018 @ 10:10pm 
I know this thread's a bit old but in case someone stumbles on it in the future or whatever, I made a CAT 3408 engine mod and you can get it here: https://steamcommunity.com/sharedfiles/filedetails/?id=1586277412
Leetpandaz Dec 12, 2018 @ 9:09am 
Originally posted by vsTerminus:
I know this thread's a bit old but in case someone stumbles on it in the future or whatever, I made a CAT 3408 engine mod and you can get it here: https://steamcommunity.com/sharedfiles/filedetails/?id=1586277412


Hell ya im going to give it a try later
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Date Posted: Jun 12, 2018 @ 1:35am
Posts: 14