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Discussion Starter #1
Got to Uprev yesterday to get retuned for my Brian Crower Stage 2 cams. As you can see from my results, they are lower than expected. But that's life & I'm Ok with it. 12whp peak, though several points had 15whp+ and up to 17ftlbs gains in places. So I still got some gains from the cams, especially the upper end. Plus I know my truck runs great & sounds great. It feels great driving around town and I'm sure I will see some gains next trip to the track.
I had a pretty good time visiting Uprev again. They ran the piss out of my truck for this retune. I think we had a total of 27 dyno pulls before we were done. Couple of things they did besides the tune itself was bumping my idle up to about 730rpms and raised my rev limiter to 6800rpms. They also removed my random misfire ses code that the cams were creating.
Also I thing I must note. First thing guys I'm just learning here about dynoes, so bare with me. Apparently the local guys I went to about 9 months ago to get dynoed after swapping my flowmaster for magnaflows were crappy at their job. Or a little shady with their dyno. Anyway my numbers from that local dyno shop were 263hp/286ftlbs. And that was BEFORE my cams. I was pretty shocked when Uprev got me on the dyno yesterday and based lined 250hp/270ftlbs WITH my cams. Well I research now and see for one thing the local shop used "std" correcting factors vs "sae" correcting factors like Uprev and most other reputable shops use. So between the std vs sae issue and I guess the local shops basically "generous" dyno, I couldn't even match those numbers with my final tuned runs. So I guess I will stay with Uprev for any more dynoes. Plus the cool thing about that is they keep all of my runs on file. They were able to dig up some of my old runs so I could get some nice comparisons over the last year of mods.
So a few notes before my graph.
I didn't show it here, but I did actually lose a slight amount power at some places and at some points were slightly better with my cams before my retune. Overall it was down though I would say. But for certain, anybody else who decides to get camshafts, you WILL need a custom tune.
Also a note about the tapering off on the highends of the graph. My no tune baseline had the factory speed limit of 112mph and is why it stopped the shortest, the precam tune had the factory 6250rpm rev limiter and was hitting it at about 119mph, and the final tune had the new 6800rpms rev limit which allowed my truck to redline at about 129mph on the dyno. Pretty cool standing beside my truck screaming at 6800rpms and the wheels going 129mph :). I wont usually bring it that far but from the graphs and and from driving it around today, I'll shift around 6300-6400rpms.
THE DYNOGRAPH PULLS-----------------------------------------------
NO TUNE BASELINE-I had basically all my current mods except no camshafts(also had a flowmaster instead of current magnaflows), plus NO TUNE AT ALL. Done 1-10-2009.
PRE-CAM BASELINE-Same as above but with UPREV TUNE. Done 1-10-2009
CAM FINAL TUNE-Cams added (plus magnaflows instead of flowmasters). AND UPREV RETUNED FOR CAMS. Done 1-16-2010.
 

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nice to see someone do this, and get the numbers.
the gains i think are better for the 6800 rev limiter.

but from start to finish you have a lot more power.
 

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SO WHERE ARE THE 0-120mph Vids :)

Also, how is WOT and any CEL come on during the ride home????

Plus im not really disappointed in the small amount of power, Our trucks sound ballsy as hell and well be running mid to high 13's (burnout needed lol)

ALSO::::: ANDY awesome work on getting that bad boy runnin!!!!!! Well still beat u though :) lol
 

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Can't wait to see some 1/4 mile runs. That will be the real comparison. Nice job man.
 

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Discussion Starter #5
SO WHERE ARE THE 0-120mph Vids :)

Also, how is WOT and any CEL come on during the ride home????

Plus im not really disappointed in the small amount of power, Our trucks sound ballsy as hell and well be running mid to high 13's (burnout needed lol)
No clips yet. I did do some datalogs today though with Cipher. Some of them were pretty encouraging. I tried variations of shift points-from 5800-6500. The strongest was when I shifted at about 6400rpms. I think it did best, since I still have some power up there, and it also puts me higher into the next gear, about 4300rpms for the next. I had my regular street tires on so I feel pretty good with the higher shifting run, where I did 0-60 in 5.8sec and 0-90 in 11.8sec.. Cipher can be off some due to tires and etc., but it was by far my best Cipher run I ever did.
I'll get to the track soon to see where I actually am.
I got one code again coming back from Austin. It was the timing advance code. I dont know what the deal is with it. I had it with in my first 50 miles once, and then yesterday which was 2 weeks, 27 dyno runs, and 350 miles later. Cleared it and drove another 150 miles since then. Don't know. If it pops up again, I might take off the cam control unit and check for any blockages or rtv in the oil passages there. It's pretty easy to get to it. Hopefully it was just a little piece of rtv or dirt and now its filter out.
 

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Discussion Starter #6
Can't wait to see some 1/4 mile runs. That will be the real comparison. Nice job man.
Just found out the track is open tomorrow. Trying to decide if I want to go yet. My truck has had a lot of use & abuse this weekend. 27 dyno pulls, about 6 cipher datalogs, plus a little "playing" with a 350Z, and a 330mile round trip. Maybe though......
 

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Just found out the track is open tomorrow. Trying to decide if I want to go yet. My truck has had a lot of use & abuse this weekend. 27 dyno pulls, about 6 cipher datalogs, plus a little "playing" with a 350Z, and a 330mile round trip. Maybe though......
Do it! Post some vids too! :)
 

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nice RD, can't wait to see track results!!
 

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I had issues as well when I installed 350z nismo cams......Spent many nights at the dealership tuning the computer........Finally had to retard the timing 3 degrees neg...Been driving almost a year and no engine codes...... Only issue I had was 2 months ago had the forgot the name but is controls th timing go bad its a sensor...It was covered under warrenty.......Truck is diff strong.....
 

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U spinning on the 5.8 to 60?

Let us know more about that timing code
 

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Well crap :comphead:. Just went to the track and it was a no-go. They had a special imports show/event today at the track. They had a car show, dragstrip event, bikini contest, and crank it up contest. I actually never even heard about it on tv or radio, so I figured it wouldn't be too busy. BIG mistake. I drove 50miles to get there and hit a line about 1/2mile from the gate. Waited 30 minutes in line and only moved 1/4 a mile and still had another 1/4 to go. Got close enough to see the staging lanes and saw they were packed. So instead of paying the higher $25 race fee(plus my 2 passengers $17ea fee's) waiting another 30min in line, and only get maybe 1 run if I was lucky, we just blew it off, turned around and came back home.
That sucked. And my truck was running SWEET today. I feel it would have done pretty good if I could have run. I played a little more with my shift points today. I actually tried shifting about 6600rpm into 2nd gear for the first time. It was pretty impressive. I didn't spin into second, no, I actually started boiling the tires and going sideways :). Never spun that good before in 2nd gear. Sure doing a burnout from the hole I can spin all the way into to third even when my truck was new, but this was taking off reasonable, rolling into full throttle, and then shifting. I was on blacktop so it spins easier than concrete, but boiling the tires at 40mph is still pretty good regardless. Pretty interesting.
And johnny, on my datalogs I did yesterday, I was spinning a fair amount from the hole, but not severe. I think with my power band moving up slightly, it may be allowing me to control my launching a little. Thats a good thing if thats so, but I wont tell for sure until I get back to the track. And I've done better 0-60 before with my gtech, logged a 5.69 several months back on a lucky launch(didn't spin too bad), but on my current datalogs, the 0-90 of 11.8 is what I find encouraging. Going to 60 is always a crap shoot for me on the street, sometimes I boil the tires, sometimes it only spins half of 1st, so I can get any where from mid 5's to mid 6's depending how bad I sucked taking off.
Anyway, I'm afraid to say it in fear of jinxing myself, but I can't see any logical reason with how strong my truck pulls in the 4000-6800 range now, that I can't see some high 13's. If I shift at 6300+, it will keep me in my power band (4000+rpms) from about 25mph to the finish line. So here's hoping.
I will get to the track the next good weather friday they are open.
 

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Sweet deal man glad to hear truck is running good. im sad to hear No runs got in! But there is always next time............
 

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bummer.... how was the bikini contest?
 

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bummer.... how was the bikini contest?
Crap man, I never even got in the gate to see it! That would have been an extra bonus to some nice runs. But I waited 1/2hour in line on the highway and still had another 1/2 to go when we saw the long staging lines, and we gave up.
 

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Yeah that is a little strange. I noticed my usual big dip at 3600rpms, which I assume was the variable cam control kicking in, is much smaller and I have a second small dip at about 4400rpms which is where the precam tune meets the cam tune. This is true even with my cam pretuned dyno, so it's something to do with the new cams themselves. So I traded 1 big dip for 2 small dips. Strange.
 

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Where are these videos lol Im dying IN SUSPENSE!!!!!!!!
Also my camshaft sensor came in but its raining in Jersey so itll be installed tomorrow and Itll be tuned before next sunday, dont have an actual date yet
 

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Where are these videos lol Im dying IN SUSPENSE!!!!!!!!
Also my camshaft sensor came in but its raining in Jersey so itll be installed tomorrow and Itll be tuned before next sunday, dont have an actual date yet
No more videos until I get to the track again. And that will be done ASAP.
 

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Oh man! I smell......13s!!!!!
 

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Ooooooo alright :( lol

OK so this might sound really dumb but, if u keep getting that variable valve timing code again, check the connector the plugs into the sensor, cause mine popped off??? and I put it back on and drove 100 miles today without a problem....

Also I replaced "BOTH" Camshaft sensors today and No more CEL's occasionally random misfire popped up throughout nmy days journey but....Im getting tuned this friday So im not complaining :)
 
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