That's awesome. I will definitely look ya up sometime. That would be close enough to do even if I wasn't making a run...plus I try to avoid the Cambridge Weigh Station like the plague.
Elite 76 drop in
- Thread starter Stroked777
- Start date
That's awesome. I will definitely look ya up sometime. That would be close enough to do even if I wasn't making a run...plus I try to avoid the Cambridge Weigh Station like the plague.
Stroked777
New member
Now when you say stock housing, are we talking same size turbine wheel as the stock unit?
jdgleason
Active member
Lol I like that
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Stroked777
New member
What I was asking if the exhaust side is the same size as stock or bigger? Does it help lower EBP?
forcefed6.4ford
New member
I would suspect that EBP will stay the same if not go up. The exhaust still has to go through the same VGT housing before getting to the atmo.
I agree BUT I still have trouble trying to predict EBPs. In theory, if your VGT stays stock, it will primarily be the major factor in how high EBPs are. Since the 76 should flow more air, if anything, the EBPs will go up because the 76 ultimately lets you make more power/flow more air and you are not doing anything to change bottleneck (the VGT). Now, whether that will be the case is a different story...hopefully Friday I will know. I was thinking from Wayne's testing sometimes the EBPs didn't go up when I would have expected them to.
If you ever need a way around that station let me know as its right in my backyard.
Thank you. I have a found one way, but that road aint that great so next time I am going through the area, I may have to take you up on that offer.
For those of you that are thinking about running one of these larger atmos why not just put in a gate that you will need anyhow and gate to the high pressure turbo. This will make the atmo work a little harder while keeping EBP's at a safe number.
smokinstroker
New member
Josh already knows this but I'll throw it here for everyone to see.
When I talked about running one of these alone on stock fuel I was given some opinion/ advice. Talked to JD, Jared, Barder and Wayne a while back.
Info I was given in a nutshell... The 76 is a great charger with the potential to move ALOT of air. Yes you should pick up performance from stock or 71/72. But on stock fuel your limiting factor will be driving the charger due to the lack of fuel.
No one to my knowledge has tried a 76 on stock fuel.
Jd is on pumps and nozzles which may relate to driving the charger harder. i.e. Better performance than a stock fuel truck may see.
I was pointed at running a 59/71 or 72 setup and was told I would possibly enjoy it better.
Being as the dead spot( if there might be any) would not exist. Also with the 59/xx you have the vgt driving the Atmo harder.
Another perk to the 59/xx would be a lower necessity of a gate (still good insurance) as the turbine in the vgt would help keep things closer to spec.
Hope some of this helps y'all. Take it all with a grain of salt! I'm not pushing anything as I still plan on buying a 76
When I talked about running one of these alone on stock fuel I was given some opinion/ advice. Talked to JD, Jared, Barder and Wayne a while back.
Info I was given in a nutshell... The 76 is a great charger with the potential to move ALOT of air. Yes you should pick up performance from stock or 71/72. But on stock fuel your limiting factor will be driving the charger due to the lack of fuel.
No one to my knowledge has tried a 76 on stock fuel.
Jd is on pumps and nozzles which may relate to driving the charger harder. i.e. Better performance than a stock fuel truck may see.
I was pointed at running a 59/71 or 72 setup and was told I would possibly enjoy it better.
Being as the dead spot( if there might be any) would not exist. Also with the 59/xx you have the vgt driving the Atmo harder.
Another perk to the 59/xx would be a lower necessity of a gate (still good insurance) as the turbine in the vgt would help keep things closer to spec.
Hope some of this helps y'all. Take it all with a grain of salt! I'm not pushing anything as I still plan on buying a 76
powerstroked08
Active member
Jerry did you mean gate to the low pressure turbo? If so in the high power jr. setup you can't because that setup doesn't have the cast piece in between the chargers.
I already had everything with my gate (for over a year) to dump to the DP or that is what I would have done...and ultimately, I do wanna add fuel at which time I would prefer to dump to the DP.
Thanks. As I said earlier, I still don't feel like I have a complete grasp how exactly each turbo will affect everything (mainly EBP) so this was helpful cause what you posted is how I understand it. I will be on stock fuel a little while longer and I know I would have more max HP by running a 59, but since spool up is more important to me, I THINK (and I may be wrong on this) that the stock VGT, because of the smaller wheel, will spool slightly quicker. If that is not your impression (or anyone else's), please let me know. Of course, its too late for me to change right now anyways, but I am trying to get a better comprehension of this subject. In any case, I definitely plan to go to a 59 when I add fuel. Oh yeah, I am gating to the DP.
Riverside
Member
From my experience with my truck (stock fuel) I can say...
Going from spartan tuning - stock turbos - AFE intake - RCD cac pipe - AFE dpf delete pipe (rest of exhaust was stock)
To
Spartan tuning - elite 72/59 turbos - AFE intercooler - valve train up grades - 4" DP to 5" straight through exhaust - no limit intake - RCD ported intake.
The 72/59 came on sooner then stock
Came to full boost faster
And dam sure pulled harder.
Only reason I listed the mods besides the turbos is cause im sure they had an affect on the overall behavior of the 72/59 effects on the truck.
I then acquired gearhead tunes and OUO traction bars.
That further improved the overall manners of the truck and felt like it ran that much better....more pull on top is what I would say I noticed the most next to the shifting.....so nice.
Followed up was a fully built tranny w/1600rpm RCD TC.
The tranny made the truck "feel" like it was making more power...Although clearly it wasn't making any more power.
Now up is 6.0 manifolds and high power Jr's 76/59.
This will be ran on stock fuel without a gate.
Again, only reason I listed the steps of my truck is because of the other mods affect on the truck adding to the way it drives now to how it was when I got it.
Stock turbos boost and back pressure....
50 - 53 boost
What the hell is BP lol (I was learning)
72/59 :
58-60psi boost
80-85 of absolute BP. (My atmospheric pressure were I live is 14psi)
I will definitely share what the 76/59 delivers for me.
Going from spartan tuning - stock turbos - AFE intake - RCD cac pipe - AFE dpf delete pipe (rest of exhaust was stock)
To
Spartan tuning - elite 72/59 turbos - AFE intercooler - valve train up grades - 4" DP to 5" straight through exhaust - no limit intake - RCD ported intake.
The 72/59 came on sooner then stock
Came to full boost faster
And dam sure pulled harder.
Only reason I listed the mods besides the turbos is cause im sure they had an affect on the overall behavior of the 72/59 effects on the truck.
I then acquired gearhead tunes and OUO traction bars.
That further improved the overall manners of the truck and felt like it ran that much better....more pull on top is what I would say I noticed the most next to the shifting.....so nice.
Followed up was a fully built tranny w/1600rpm RCD TC.
The tranny made the truck "feel" like it was making more power...Although clearly it wasn't making any more power.
Now up is 6.0 manifolds and high power Jr's 76/59.
This will be ran on stock fuel without a gate.
Again, only reason I listed the steps of my truck is because of the other mods affect on the truck adding to the way it drives now to how it was when I got it.
Stock turbos boost and back pressure....
50 - 53 boost
What the hell is BP lol (I was learning)
72/59 :
58-60psi boost
80-85 of absolute BP. (My atmospheric pressure were I live is 14psi)
I will definitely share what the 76/59 delivers for me.
Stroked777
New member
I would be curious to see what my boost pressures read due to my cam. Entire I had a cam put in I would hit 52 psi on stock turbos. And now even when it's been sub zero out I can only muster 42-45psi on my stock turbo.
Riverside
Member
Truck is back up and running again so here is my initial impression and rough data numbers from running high power Jr's 76/59 on stock fuel and Gearhead race tune.*
From a dead stop spool up is just as good as my old TPP 72/59.
The 76 spools more aggressively.*
What I mean by that is weather your just rolling into it or mashing it to the floor it has more pull to it while spooling.*
The 76 is just as smooth at building boost as my ol 72 but the 76 just wants to go, witch translates to pulling harder through the middle and top.
It just feels like it has more punch to it.
Back pressure is down overall.*
It will still climb to low 80s (absolute) in the very top part of the RPMs at WOT.
Peak boost is down slightly from 60 to 54
EGTs are down as well.
WOT have produced 1350 egt were as the 72 was around 1475 - 1500s
Cruising temps are also down 50 - 100
Rolling into it fairly hard temps didn't break 1000.
Overall, *at least on my truck the 76 feels like it makes more power....spools as good.....dropped EGTs enough worth noting and drives as good if not better then my 72.
IMO its a worth while upgrade (especially if more fuel is added) over the 72 that im very pleased with.
Again, keep in mind I've had a 59mm vgt with the 72 and 76.
jdgleason
Active member
Awesome write up! Sounds about like my experiences going from the 72 to the 76. Glad to see you got the truck all back together buddy... Enjoy that thing.
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Awesome info!!! Thanks for the details...I agree the details do make a difference. Now I am even more excited to get my truck back!!!!
That's interesting your boost is down...but according to your butt dyno, the 76 did make more power, right? Do you have any actual dyno numbers on either setup?
Wayne
Active member
A lot of excellent posts have been made here. The only thing I would add is that I did do off idle acceleration tests with larger atmos and various vgt's. With the same atmo, going from stock vgt to a larger one there is a slight delay. It's not dramatic, but it is there. Those who "feel" like it responds quicker might be feeling a quicker lighting setup due to some ther factor like adding twin pumps or whatever though. And yeah, they still light really quick. It is a 59 mm billet vgt after all. Most of the delay is in the turbine wheel though. Part of the testing was with a controlled 59 mm compressor wheel, and several turbine wheels. The best match for power and response is the wheel currently offered, but does have a slightly greater response time than the stock counterpart.
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