A couple weeks ago, we installed a zzp 2.1 liter lnf motor with zzp block girdle, zzp rods, wiseco forged pistons. This motor also has our ported head and s2 cams with larger fuel pump lobe. Running our bolt-on zzp/efr turbo and full zzp bolt-ons, this setup has been dyno tested to 567whp at 30psi running on E85 from our local Mobil station that tested at 87% ethanol. At 475-500whp, the DI injectors were being pushed beyond their optimum window, so Iam running our single extra injector kit and controller.(Same kit run by Scythe Snake)

With the race season winding down, I wanted to get this car to the track to see what I could put down. I headed down to US131 Motorsports Park in Martin. The weather was great and the track was alright, but my slicks are 2 years old and not in the best shape anymore. All passes were made with 16-18psi in 1st gear and switched to the high boost setting down track.

For the 1st pass, I launched very conservatively and put down a 1.84 sixty foot. I switched to high boost- about 26psi towards the top of 2nd gear. I shifted pretty conservative and finished with an 11.2432 at 132.16

For the 2nd pass, I launched a little harder for a 1.78 sixty foot. Unfortunately, I forgot to switch to high boost until part way through 4th gear. This pass was a 11.30 at 130.

Pass #3 was a little better sixty foot at 1.77. I hit high boost(27psi) about half way through 2nd gear. This pass got it done with a 10.9985 @ 133.61!

ZZP LNF Cobalt Runs 10.99 @ 133.6 - YouTube

Pass #4 was run the same way, but the sixty foot was a little slower at 1.80. This run was a 11.06 @ 134.40

For pass #5, I decided to turn it up a little(29psi on high) and also tried to launch harder. I also started no-lift shifting the 3-4 shift. Unfortunately it spun pretty bad on this run for a 1.88 sixty. The pass was 11.01 @ 136.85.

ZZP LNF Cobalt Runs 11.01 at 136.8 - YouTube

Pass #6 was run the same(29psi and nls 3-4). I got a better sixty foot at 1.81 and ran 11.00 @ 136.84.


For pass#7, I decided to nls 2-3 as well as 3-4. Unfortunately, thinking about this, I forgot to hit the high boost switch until 4th gear again. I finished with an 11.18 at 132mph.

At this point, I decided to call it a day because the track just wasn't good enough to put down a good sixty foot any more. With a 1.68 sixty foot and 30psi on the high setting, we should be looking at a 10.6. Maybe next year...

 

Damn great job ZZP!

 

Holy crap good work matt as always zzp does it again

 

You've outdone yourself again Matt! Excellent work!!!!

 

As said before, great job Matt. Where do you think the power level was on your 10.99 run?

 

Thanks, guys!

I'd say about 525 or so.

 

not only are the times amazing. but the consistency with your car and ryans car. 10.99 11.00 11.01!!

 

So when can we buy these parts?

I think a lot of us are ready for a early Christmas surprise from you guys!!!

--Christian

 

Holy mother of Jesus!

 

Very cool. Nice work.

I am curious though... It sounds like you are hitting a switch during your run to access the "high boost" in your later gears. I was under the impression that this kind of function could be done automatically with the tuning software. Is this not the case for you? If it is, is there a reason you don't have it tuned that way?

 

/\ Agreed can we transplant into my car? I was thinking of shipping it there in January anyways..


Nice work.

 

What kind of EFR is on this setup did not see it mentioned.

 

The ECM allows you to set a multiplier for the target torque values based on gear and RPM, but it doesn't work very well on higher powered setups. I have tested it on the dyno and it seems to be pretty inconsistent. On one pull you might have 40% throttle in 3rd gear, and then the next pull it will be 100%, etc... Plus, I didn't have much time to dial in the tables before going to the track. The high-low boost switch is pretty easy.

 

With that are you just using a dual stage controller?

 

Most of the parts on my car are already available. While our EFR is not out yet, we can build an EFR kit for anyone building a serious setup like this.

 

A manual controller and a solenoid with a switch behind the shifter.

 

Matt I played with the same tables and you are right sometimes it won't boost enough and others too much. You really notice it when doing a 40 roll and it will spin sometimes and low boost and bog others so it kinda sucks.

 

Droolz!!!!!!!!!!!!!!!! Good work fellas

 

Wish my EFR would have made the track this year.


Matt what EFR are you running.

 

6758 with a custom housing that mates to the stock manifold and o2 housing

 

Badass, you guys are always doing something crazy (good crazy)

 

Can you pm me what i need for this or link if you guys sell it? This would be nice to have going into winter with no traction and i'm sick of burning up tires. Third gear i can control but 1st and 2nd is a smoke show using anything over 1/8 to 1/4 throttle

 

Thought the 6758 was only good for around 500 and not much more. Either way i am extremely impressed and hope i get mine back shortly so i can make a track pass on my EFR setup.

 

he is on full e85

 

They have a extra injector for more fuel and head/stg2 cam but i'm surprised they made that much @30psi.

Matt have you turned the boost up past 30psi yet and if you have was it maxed out?