LooseBoltsRob

Well, last night I finished up the install of the new toys. I updated my smarty to the new WILD program for aftermarket turbo/stock injectors as well. I loaded up SW9 and turned the MP8 to about 45%. First change I noticed immediately was the MP8...WOW....talk about response. I had to turn it down a tad because I was giving my passengers whiplash. It is amazingly sensative on the throttle with the MP8. The turbo is wonderful! The whine is actually reduced at lower boost levels, and it creates virtually no boost while cruising unlike the stocker. EGTs are almost 100 degrees cooler just idling! WOT runs were impresive. Spins the tires through 2nd and 3rd, and barks the heck out of them in 4th. I gave the wastegate actuator rod one full turn additional before I installed it, and got exactly what I was shooting for, 42-45 psi. I get around 42 in the lower gears and pegged 45 in 6th. Running to 3500 RPM in 5th and up to 2800 in 6th only resulted in 1250 max EGT....NICE!

The turbo is very close to stock in spool. The one area that it is very noticeable is low RPM in high gear, like 6th gear at 40 mph. The response is sad...almost like I no longer have a turbo! BUT, I'm talking 1200 RPM. With just a minor adjustment in driving style, I can stay in the RPM range the new turbo likes, and it will light almost as early as the stocker....just need to keep from lugging the motor around town when I want quick response.

Anyway, I was very impressed with the entire set up. The install was a cinch. We did have to slightly separate the preinstalled manifold peices. ATS pressed the two sections together too much, so the bolt holes weren't lining up with the head. After a few dozen soft blows with the back of a pry bar and hammer, everything lined up perfectly. The new wastegate design of the II turbo made the return line bolts difficult to install since the actuator is right in the way of the inside bolt. It was manageable though. II claims that you can make boost adjustments w/ the turbo on the truck....that won't be easy! Removing the snap ring and making the adjustment will not be easy since that side of the turbo faces the block. Maybe on a 2nd gen it would be easy, but not on a 3rd.

I am hoping to hit the dyno within the next couple weeks. As I type this, I am transferring the "moderate" torque management program for aftermarket turbos on the Smarty. It was definitely too smokey for normal city driving with the wild program. I'll throw that back on for the dyno tests, but right now I am going to load up SW7 with this version of software and hope for more manageable smoke at low throttle inputs.

t-boe

This is the kind of thing I love to hear. I'm debating on what turbo I want to get. Any info is always helpful. Thanks!

LooseBoltsRob

No problem! If your truck is an auto, the few mentions of lag in my post are that much less relevant. So far, I am 100% happy with this new Silver 62. For those who don't know what the turbo is, it's essentially a SPS 62/14, but with a different turbine wheel which is supposed to spool and hit a little earlier than the SPS. You also get a polished compressor housing. The turbo is about $400 MORE than the SPS though, so I'm not sure if the minor differences are worth the money over the normal SPS.

wap

Rob, nice write up, I have been waitin since you said you ordered to turbo to see how it does.

What is that clutch of yours rated for, hp?

congrats on the new parts

jwb600

how do you get that wild program for the smarty, ive heard guys say they run alot different

973604x4

Is the Silver 62 a 62/14?

I considered getting it but II said I would be fine with my SPS 6280 unless I start spraying nitrous.

LooseBoltsRob

Yes, 62/14. They said the turbine wheel is a different material that can handle a greater amount of heat? Other than having one more blade on the wheel, and it being made of a different material, the performance is virtually the same as the SPS6280. The spool speed difference may be 25 RPM lower from the added turbine blade, IMO. Maybe there's something better about this turbine wheel when used with nitrous?? If I could have done it again, I probably would have stuck with the SPS6280 since the performance is virtually identical. Although the polished compressor housing looks cool

LooseBoltsRob

The wild program is straight off the downloads page from madselectronics.com. When I went down to the moderate TM increase for aftermarket turbo program, on SW7, the normal driving feel was the same. I didn't notice anything that different on the wild tune. It's nice a smokey, and definitely makes power, but I only used with with the II turbo, so I can't report exact gains.

LooseBoltsRob

Thanks wap! The SPEC Stage 3+ is rated for 1000 ft/lbs, but David Norton, the owner of the company has personally tested it on a truck making over 1100 ft/lbs w/o slip. It's a full faced, metallic (feramic maybe?) lined, sprung hub disc. The engagement is a tad grabby in 2nd gear at low RPM, but if you give it any throttle over idle when coming out of the clutch, it's silky smooth. It has taken every ounce of abuse I've thrown at it, and grabs wonderfully at WOT. SPEC has a variety of diesel clutches, and they even advertise in the diesel performance magazine. They just released a new line of dual disc clutches for diesels too. I figured I'd try something different than the SB set-ups, and so far so good.

wap

thats why I asked, I have never heard of em and I am alway interested in learning about new parts and vendors
Thanks for the info

jwb600

I ran a LUK clutch in my 05 and I went thru 2 of them in a very short span, south bend seems to be a good one to run. My clutch was very grabby trying to back up a trailer or just trying to back up, I mostly took off in 1st gear because of the same 2nd gear thing it was very grabby then also.

LooseBoltsRob

The luk was probably an organic design? SPEC builds some of the best V8 dometic clutch kits on the market, and the design of the Stage 3+ is awesome. The owner of SPEC just replaced his Stage 3+ in his CTD with their new twin disc set up, and he said it had no noticeable signs of wear after quite a bit of abuse and heavy trailer towing around the country. I'll post up some photos soon if anyone wants.

Ponci

So hows your cruise egt at say 60mph. I am debating if its worth the cost diierence over my sps62.80.

LooseBoltsRob

Honestly, I haven't checked my EGTs while cruising. At WOT, it used to scream to 1300 and hold there until I shifted, then jump right back. Now it is just barely reaching 1250 by 3500 RPM when I shift, and it's moving a lot slower.

I will report back when I can check EGT at cruising speeds. If you already have an SPS6280, DO NOT buy a Silver 62!! I wouldn't say the $400 more is worth it even if you haven't bought a turbo yet, unless you really like a polished compressor housing. The turbine wheel is the only other difference according to Brandon at II, and the difference is in matieral and one extra blade. If I could do it again, I would have saved myself the $400 and gotten the SPS6280.

LooseBoltsRob

Okay, an update on EGTs...

70 mph, 2050 RPM, 580-600 degrees. Zero boost unloaded.
70 mph, 2050 RPM, 630-640 degrees towing 2500 lbs, 4 psi boost.

I'm still very pleased w/ the turbo. Towing the small load of 2500 is virtually the same as stock, but I am throttling it harder, which generates a little more smoke than I like in normal driving. I am going to go way down on the smarty, or go back to stock and just run the MP8 and see how I like it while towing....just to reduce the smoke.

Exhaust note is definitely louder while towing. I have a pretty good drone at 70+ MPH w/ the trailer...I could only imagine how bad it would be towing 10k+. Hopefully the 5" exhaust with the 51" long donaldson will keep things quieter on the highway. It virtually had zero drone w/ the stock turbo, so exhaust note really increases w/ the turbo upgrade. In normal city driving, it's just a slightly amplified sound of what it was w/ the stock turbo...sounds GREAT.