horsehelper

I just made my first pull useing the smarty.. running 15,000 lb gooseneck. What a differance in the drive. the best part is I always got around 10mpg and now with the smarty I ran at 12.5. This is all good stuff

AH64ID

Smarty doesn't effect anything at an idle, so I doubt it's related to the Jr.

JoshBrown

I wonder what it could be. It only does it on certain Jr. settings.

erslll

Since there seems to be a lot of info about the Smarty JR, I am going to jump in here.


Can anyone tell me about the Smarty JR on an 03? What I have been reading says that it will boost fool on the newer rigs with the electric waste gate but I haven't been able to find any info on what kind of boost numbers I will get on my 03. Does it come with a boost elbow? Or can I use my boost elbow from the Edge EZ I am replacing?

GLHS

Good info here as I just ordered a Smarty Jr and am looking for a he351 turbo to replace the he341 on my 2003 6 speed.

Looking for the same thing as everbody else; little smoke and the most mileage.

AH64ID

The SJR will "boost fool" on your 03, but it won't raise the boost as the WG isn't electronic. But it will allow you to keep the adj boost elbow from your EZ and not throw an overboost code.

You will get as much boost as you let it, on the stock HE341 I would have the WG open about 30-32 psi if it were my truck/turbo.

erslll

So the SJR doesn't come with a boost elbow?

Are most people that use the SJR with the HE341 using some kind of adjustable boost elbow?

AH64ID

No it does not come with a elbow, and I would presume so as the fuel it adds will get hot at stock boost.

erslll

Thanks for the info.

EPCO

MPG updates at 75 mph max: Going to keep it at SW2 TM4 TQ2

SW1 TMD TQD = 14.89 mpg overhead = 17.7
SW1 TMD TQD = 16.8 mpg overhead = 20 (driving 65 MPH max with tow/haul engaged)
SW1 TM4 TQ4 = 15.8 mpg overhead = 18.8
SW2 TM4 TQ2 = 15.4 mpg overhead = 18.5
SW3 TM4 TQ2 = 15.76 mpg overhead = 19.1
SW3 TM4 TQ4 = 14.84 mpg overhead = 17.8

-In SW2 and 3 the EGTs are hotter by 150-250 degs than in SW1, and they are slower to cool at idle.

-I really like how it responds in SW2 4-2, with little to no smoke, no stutter shift, and smooth idling. The truck would bog too much on inclines towing a camper in SW1 for me. So I will leave it at SW2 4-2.

-Lots of 1-2 stutter shift with SW1 and 3 settings. SW2 42 cures it.

-65 vs 75 mph - Pretty big difference there. ($4 gal fuel x 30 gal = $120 tank / 14.8 and 16.8 mpg = $30 difference) Is my math right? For me that is $60+ a month in savings.

-Odd sounds - In SW3 and SW2 D-D at idle (lights and drive throughs) I get a mechanical gear tension sound. Like the power steering is engaging sound (I'm sure it's not the power steering but it sounds like that). Have no idea what that is.

? - SW1 EGTs would stay around 800 degs. SW3 would get up to 1000+ on the same incline. From what I have read I don't want them to go over 1250 and 1100 is normal. Is this correct? Will I be OK in the Rockys up to 1250 degs towing in SW2 42?

? - On cool down I wait for EGTs to get below 400 degs. What is the acceptable cool down before shutoff EGT temp?

? - Has anyone noticed an improvement over 5.10 vs 5.12 versions? Nervous about updating and the stutter shift coming back.

Scottygl62

Regarding your last question, can't speak for the 5.10 version. However just purchased a Jr with 5.12 and installed on an 07 5.9. Settings are SW3, TM4 and TQ2, POD 99. Haven't noticed any shutter issue and my slight shutter at lock-up has gone away, smooth lock-up now. Love all but the smoke. Going to reprogram to SW3, TM2 TQ4 to see what that does. Stock trans and don't hot rod. So far a solid 2 MPG increase from 18 to 20 mpg, holding the RPMS @ 1800

JoshBrown

Why can't we get a tune that doesn't fuel so much at low boost? I can't stand the smoke.

Adaminak

It wouldn't spool the turbo as quickly, and the bottom-end launch wouldn't be any stronger than stock. When I lived in Colorado Springs I could get pretty good smoke from the stock truck when I got on it hard from a standstill, so factory is right at the limit of low RPM smoke and any improvements are going to have more smoke until the turbo spools...

AH64ID

I don't fully agree. The smoke is mainly from timing and advanced timing actually makes the turbo spool slower. So a little less low boost timing should make it spool faster and reduce smoke. But it's hard to say, there are so many minor difference in trucks...

I can make my truck smoke if I want to now but with the cam/turbo my low boost smoke is 90% gone, goes to show how a little efficiency really effects the smoke.

Adaminak

Agreed, in part. My turbo spools much quicker with the Jr than without, and if it's not timing (and I agree with you that it's not) I can only attribute it to more fuel. The timing has a negative effect, but I'm thinking the benefit of more fuel, faster, causes an overall reduction in turbo-lag. Unfortunately, the side-effect of extra fuel without boost is more smoke. Could the map be refined to reduce timing while still adding fuel and not cause a big spike in EGT? I don't know.

What I DO know is that I want your turbo and exhaust manifold!