I wish more vendors put this much r&d into the lnf, the engine has been out for over 3 years now and only now its basically getting picked apart and pushed to the limits, kudos to zzp.

 

definitely true, but **** $200-$300 less is still 23%-35% less per set and an H-beam rod in a 4 banger can support somewhere around 800-900hp.. any money saved is good in my book..

 

415 to the wheels is pretty easy with fuel pressure raised to 2800.

We have to do a cost breakdown before we can release a price, but we are working to keep this kit very affordable.

E85 is a poor choice for the LNF. Even with more than 3000psi, we couldn't deliver enough E85 to support the airflow of the stock turbo.

We are only using the ECM fuel pressure control at this time.

I agree. I would rate them to 400whp for extended use and occasional hits to 425. 450 is stressing them pretty good.

We are going to tear down Ryan's motor(LSJ) soon as well. I'm expecting to find the same problem.

 

Great work. Another testament to the mighty lnf...

 

9:1 wouldn't be anywhere close to causing hydro-lock. People running methanol run far richer than that, and they often run a lot more boost, meaning even more fuel.

Yes, stock rod.

It ran 11.43 on the bent rods. That was the last day I ran the car before it was taken apart. There were no signs .

We'd like to be in the $650 range, but that will be difficult in low quantity. We will have to see how it pans out.

No, they just bent from trying to push too much power through them. GM doesn't rate them for anywhere near the power I was running.

The problem with having rods made by companies like Eagle is that they get costs down by running high quantity only. We would have to invest in hundreds of sets, which might take years to sell. Of course we would sell more since the price would be lower. It's just a gamble either way.

 

Good to know... I will definitely be building my bottom end next year though. Hopefully with your stroker kit **AHEM** Lol... so I'm persistent...

 

very impressive matt.

 

What is wrong with using the aftermarket LNF rods that are already available?



How did the pistons look when you took them out?

I have read a lot of LNF guys having problems with #1.

Does ZZP plan on developing their own LNF pistons or will you use the Wiseco ones?

 

damn they look good enough to support 600 HP

.

See I knew if I showed some hate they would prevail and show us whats up...LOL
Altering the Fuel signal tricking the ECU very cool man this is exciting to know ,

I would be down for a set of Pistons , rods and valve springs , new turbo, Voltage Manipulator, but is this going to be a "Trifecta" only tune included because Vince is the only one with fuel table access or what ?

A lot of guys aren't going to want to throw away their HPT's for a canned turbo tune kit , not everyone lives in the same climate elevation etc , so I suppose if HPT gets their head out their asses you will have a base calibration to be sent for HPT guys ?

 

why would you want a stroker kit?

 

Those rods are too expensive.

#1 piston was starting to fail as well.

We will likely be going with JE.

 

hmm I forgot those were around.. I mentioned forged H-beam before and got shot down.. well I guess pictures speak louder than words.. $974.99?? Extremely expensive though.. wow

 

wouldn't the bent rods be a cause for lower hp numbers as well? i mean, when you take something straight, and bend it. the overall length decreases. so wouldn't a bend rod=shorter rod. which would lower compression and in turn horsepower as well.... wouldn't it?

 

So the new set up isnt using the voltage device to raise fuel pressure and its being done through the ECM now?

 

Vince set up the base files for me, but I am tuning on the dyno with HP Tuners. Hopefully we can set something up to allow others to tune as well.

Yes, but I doubt it was much of a loss.

Correct.

Ok, here are the updates for today-
On Friday, Vince sent me a file in which the ECM reports fuel pressure through the O2 B1S2 pid. I don't know how he does this stuff, but he did and it works. Unfortunately, I didn't have any way to accurately scale the data without adding in another gauge or referencing the voltage signal from the sensor. I will get to that another day. However, I did notice that fuel pressure was falling off quite a bit. This was bad because we need to keep injector duty cycles under 35%, especially at higher RPMs. After messing around with the DALs trying to get the ECM boost control set up I noticed the fuel pressure holding much better up top. I'm not sure if it is related or if the ECM is just learning the regulator duty cycles, but it was a pleasant surprise.

After a few pulls, I got the boost to fade slightly, allowing for a wider power band without any misfires from excessively long injector pulses. Here is the dyno chart for the last pull:

467whp on 93 octane!
453 ft lbs!
400+ whp from 4600rpm on!

Remember- these are uncorrected HP numbers. With sae correction, whp was around 435 because it's cold as F here in MI. I'm using uncorrected numbers to demonstrate the potential of the fuel system with the Trifecta tweaks in the ECM.

Cliff notes:
LNF kicks ass.
Bullseye s252et kicks ass.
Trifecta kicks ass.
People who buy this setup will kick ass.

 

OMG i want the S252 now!! ill be more than happy with 400-410 whp!! PM Me, ill drive my car out to Grand Rapids drop it off and pic it up in April!!

 

Very impressive results and I applaud the public documentation of your progress.

Just a few questions though.....How did you find this setup to behave on the street? Was driveability signifigantly compromised? How about gas mileage?

By any chance did you get to take a look at the transmission? How is that holding up?

 

How much are they ? There has to be someone who would make a 100 sets. We need to see how many people will actually buy a set though.

 

Man.. you guys are really getting into the mud on this one. Keep up the good work! LNF FTW!

 

i need a solstice or sky STAT!

 

this kicks ass

 

Gotta love the guys over at ZZP. Always pushing the 'balt further

 

What makes the torque curve fall off so hard on these engines? Between 4700rpm and redline youve lost like 125ftlbs. Could this be helped with tuning or is it just the nature of the lnf?

 

Bring it out. We can get you set up.

I don't have street miles on this particular turbo due to winter conditions, but I can say that it starts and runs like stock and drives perfectly on the dyno.

The trans still feels fine, but we did not open it up.

 

fuel fuel fuel

450HP would be fine with me as well , I don't want to HAVE to replace the internals but who does LOL I guess you could always wait for the stuff to break or do it right the first time , that would cost a pretty penny it sounds like Pistons, Rods ,Valve Springs, Turbo Kit, clutch ,
you are looking at 6500K easy