Outbehindthebarn Posted August 4, 2016 Share Posted August 4, 2016 Does this make sense? 200k on built mechanical 3406C13:6:1 compression Fuel timing advanced 32 degrees Peek engine turbo 600hp injectors Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/46324-3406-caterpillar-questions/ Share on other sites More sharing options...
RedBullDog Posted August 4, 2016 Share Posted August 4, 2016 I thought most cats run 14.5 to 15:1 compression ratios. Along with all that other jazz, it sounds like a molested motor 1 Quote Link to comment https://www.bigmacktrucks.com/topic/46324-3406-caterpillar-questions/#findComment-341331 Share on other sites More sharing options...
farmer52 Posted August 4, 2016 Share Posted August 4, 2016 If the boost is "jacked", lower compression would make sense. But sounds like a misfit engine. Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment https://www.bigmacktrucks.com/topic/46324-3406-caterpillar-questions/#findComment-341332 Share on other sites More sharing options...
Outbehindthebarn Posted August 4, 2016 Author Share Posted August 4, 2016 The truck is really really nice, but the guy selling it gave me that info about the engine... I'm not into 'hot-rod' problems. If anyone knows Cats on here, I'd be interested in finding out if this is bad info, or a quality set-up. .. Thanks Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/46324-3406-caterpillar-questions/#findComment-341334 Share on other sites More sharing options...
farmer52 Posted August 4, 2016 Share Posted August 4, 2016 49 minutes ago, RedBullDog said: I thought most cats run 14.5 to 15:1 compression ratios. Along with all that other jazz, it sounds like a molested motor 3406C used 14.5:1 CR Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment https://www.bigmacktrucks.com/topic/46324-3406-caterpillar-questions/#findComment-341337 Share on other sites More sharing options...
HeavyGunner Posted August 4, 2016 Share Posted August 4, 2016 I drove a Pete once with a Peak motor. Was told you always could tell when the peak motor injectors were going out because of the smoke and noticeable power gain. Sounds like a 3406c mechanical engine that's been rebuilt with some aftermarket power goodies on it to me. 1 Quote The problems we face today exist because the people who work for a living are outnumbered by the people who vote for a living.The government can only "give" someone what they first take from another. Link to comment https://www.bigmacktrucks.com/topic/46324-3406-caterpillar-questions/#findComment-341343 Share on other sites More sharing options...
Truck Shop Posted August 5, 2016 Share Posted August 5, 2016 The peak engines were interim design, and I will be blunt. The peak engine was a pile. Cat had alot of trouble with the timing advance arm breaking. If some one wanted a good engine the best way to go was to install the injector pump and advance from the B model 3ZJ engine. There are some tuned up turbos for them and different nozzles combined with using the 5EK and up piston liner packs and using a mechanical pump will put out 600 HP and 1850 torque. My big question when someone claims big power is where's the dyno sheet to back up that claim. My two cents. Truck Shop 2 Quote One ping only Link to comment https://www.bigmacktrucks.com/topic/46324-3406-caterpillar-questions/#findComment-341367 Share on other sites More sharing options...
Outbehindthebarn Posted August 5, 2016 Author Share Posted August 5, 2016 16 hours ago, Truck Shop said: The peak engines were interim design, and I will be blunt. The peak engine was a pile. Cat had alot of trouble with the timing advance arm breaking. If some one wanted a good engine the best way to go was to install the injector pump and advance from the B model 3ZJ engine. There are some tuned up turbos for them and different nozzles combined with using the 5EK and up piston liner packs and using a mechanical pump will put out 600 HP and 1850 torque. My big question when someone claims big power is where's the dyno sheet to back up that claim. My two cents. Truck Shop Yeah, I agree... I don't give a whit about 'big' power... I am only curious as to what those figures mean concerning timing and compression ratio.... Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/46324-3406-caterpillar-questions/#findComment-341410 Share on other sites More sharing options...
Dirtymilkman Posted August 8, 2016 Share Posted August 8, 2016 Sounds like it'd be a hard starting kitty with low compression and advanced timing. Quote Link to comment https://www.bigmacktrucks.com/topic/46324-3406-caterpillar-questions/#findComment-341684 Share on other sites More sharing options...
superdog405 Posted August 8, 2016 Share Posted August 8, 2016 Sounds like the engine I'm building for in my superliner, went with the C model for its bigger stronger crank. With a different cam, bigger turbo , steel dome pistons and inj. work we plan on 600+ hp. Quote Link to comment https://www.bigmacktrucks.com/topic/46324-3406-caterpillar-questions/#findComment-341696 Share on other sites More sharing options...
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