Built Engine, MORE BOOST!
#11
JK Enthusiast
Join Date: Sep 2016
Location: Michigan
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again let me state that these are different motors so this might not apply but the GN's were good to about 20 maybe 22 with good head studs. After that o ringing the heads was about mandatory if you wanted them to hold up for the long run. Granted timing control, fuel delivery and ignition control is much higher tech today.
#12
Former Vendor
Thread Starter
It's been a while since the last update. A lot of time and hard work has been put into tuning on the dyno, both to perfect the tune for our Stage 1 and Stage 2 kits, and to work on the tuning for our Stage 3 beast with a built engine.
Unfortunately, we hit the limit of the stock fuel rail. But here's some dyno results showing where we are now. The red lines are a Stage 2 turbo Jeep. The blue lines are Stage 3. A high flow fuel rail is on order so that we can continue turning the boost up for even more power
Note: You may notice the torque/power curves do not cross at 5252 RPM like they should. This is because this chart is showing the raw torque recorded by the dyno (Dyno Dynamics), but the power is adjusted "comparison" power to be approximately comparable to DynoJet power numbers.
~Jeff
Unfortunately, we hit the limit of the stock fuel rail. But here's some dyno results showing where we are now. The red lines are a Stage 2 turbo Jeep. The blue lines are Stage 3. A high flow fuel rail is on order so that we can continue turning the boost up for even more power
Note: You may notice the torque/power curves do not cross at 5252 RPM like they should. This is because this chart is showing the raw torque recorded by the dyno (Dyno Dynamics), but the power is adjusted "comparison" power to be approximately comparable to DynoJet power numbers.
~Jeff
#14
JK Enthusiast
That stage 3 really wakes up at 3500rpms! Be a neat little motor, pretty linear down low, and if you really want to go let the rev's build and 2-strike dirt bike performance. Fun. Keeps the power off for slow going off road, but throws it in pretty early (all things considered) for street or blasting up washes.
Diamond and Carrillo... top notch stuff.
Any idea what the block and crank are good for? Is the factory crank cast or forged? Shoot, I don't even know if our block is alum. or steel? Are they 2 bolt or 4? Splayed?
Guess I need to visit your web page, but, since the rails is out of duty, makes me wonder what you have going on for lines/pump/regulator... return? Guess I'm off to log time on your site.
My daily is a 3.5 Ecoboost F150 and I love that little power plant (about to be Livernois'd)... exciting to see what you guys are doing there. The Ecoboost is not asa "exciting" as the 5.0 (not as fun to "rev"), but for daily driving and working it's a superior setup.
Keep at it, really fun to read. Hard to believe you guys are getting near 600 crank hp out of a little 3.6 that had ~280hp from the factory. Lots of folks are poo poo about turbo's, but I'm guessing they have not experienced a well set up modern technology build.
Diamond and Carrillo... top notch stuff.
Any idea what the block and crank are good for? Is the factory crank cast or forged? Shoot, I don't even know if our block is alum. or steel? Are they 2 bolt or 4? Splayed?
Guess I need to visit your web page, but, since the rails is out of duty, makes me wonder what you have going on for lines/pump/regulator... return? Guess I'm off to log time on your site.
My daily is a 3.5 Ecoboost F150 and I love that little power plant (about to be Livernois'd)... exciting to see what you guys are doing there. The Ecoboost is not asa "exciting" as the 5.0 (not as fun to "rev"), but for daily driving and working it's a superior setup.
Keep at it, really fun to read. Hard to believe you guys are getting near 600 crank hp out of a little 3.6 that had ~280hp from the factory. Lots of folks are poo poo about turbo's, but I'm guessing they have not experienced a well set up modern technology build.
#16
Former Vendor
Thread Starter
We don't have forged rods for the 3.8, but we do have forged pistons: https://www.prodigyperformance.com/p...-pro-5038.html
~Jeff
~Jeff
#17
Former Vendor
Thread Starter
Allpar.com has some interesting technical details about the Pentastar, such as this:
The nodular iron crankshaft is common to all Pentastar engines (as of 2010); it has an 83% increase in fatigue strength due to the rolled fillet process. The crankshaft has four bolts on the main bearing supports; two more are cross-fitted in the main bearing caps providing an extremely rigid bottom end.
I haven't personally seen the engine being built, so I don't have any details I can add. I believe there were many photos taken while building the engine, so I'll try to get a hold of and share some pictures of the insides of the engine.
We are expecting to eventually hit 600+ whp. I'm not aware of anyone else that has pushed a Pentastar as hard as we have, so there's a chance we may directly discover the limit of the block/crank.
~Jeff
#19
We don't have forged rods for the 3.8, but we do have forged pistons: https://www.prodigyperformance.com/p...-pro-5038.html
~Jeff
~Jeff
#20
Former Vendor
Thread Starter