My build is almost complete!!
 

It's been quite some time since I dropped off my ZL1 to get modded and there were a few snags and delays along the way. But it is just about finished. It was on the dyno a few days ago and I got some numbers. But I opted to go for a little bit more. Here is where I am at.

Build includes: Whipple 2.9 (originally I planned for the Maggie 2650 but we had issues getting one).
TSP stage 2 cam (DOD delete).
PRC ported heads.
TSP 2 inch LTs.
Full 3 inch exhaust (MBRP Race catback).
Big Gulp intake.
NW 103mm TB.
DSX Aux pump.
Flex Fuel setup.
93 Octane tune, 100 Octane tune, Flex Fuel tune.
Other ancillary items (plugs, etc...)

So aiming for the Heavens I was hoping for 850-ish to the wheels on 93 octane and closer to 900 on 100 octane. I dream big. I'll be happy tho with 800-ish on 93 and 850s on 100. On the dyno so far we hit 730s to the wheels but the pull was in 6th and that was with the lower than expected boost (I believe it was just under 15 psi). I wanted to squeeze a bit more boost out so we ordered another pulley and belt and will see what that gets us.

I'm aware that 7th is the 1:1 ratio and ideal for pulls but we have to go with 6th due to restrictions with the dyno. So I'm guessing that is costing me some power...maybe around 30. The new pulley should get me to right about 16 which should squeeze out a bit more. I'm guessing that if the pull is in 7th then I'd be seeing high 700s on 93. As it is I'm guessing mid 700s with the extra pulley and the 6th gear pull. The 100 octane pull should be high 700s but I am hoping to break the 800 mark with 100 octane in 6th.

I am also having an E85 setup and tune added in with a gauge. I'm thinking that will be good for high 700s on E30-40...?? Guesses??

Hopefully it will all be buttoned up today or tomorrow. If not then early next week. I'd like to see some guesses on my final numbers. I will update as soon as I get them.

Also, in NJ we have 93 octane everywhere. However I am in Nebraska for a work assignment and will likely have the car out here for a few months to a year. In Omaha the max is 91 octane. Any suggestions on octane boosters that are safe and reliable? I might just get a 91 octane tune added in for safety. Ideas??

only issue with the parts i see unless things changed since i did my build last year is the TSP cams having 32% fuel lobe instead of the 38% like BTR. Your build is very similar to mine except i didn't do the ported heads and of course mine is 2650. I am seeing e30 as doable. My Fueling on both sides is holding well. My Inj pulse width is in the 5.9-6.2 range on e32. Still trying to dial in the Lambda...i seem to be .84 to .86 range. Only regret was not doing the 30 over injectors, but they are so damn expensive.

Forgot to mention you will want to do a lower pulley too as i didn't see it on the list of parts if u really want those kind of numbers without adding Meth to the mix. I chose not to use Meth for my build. I will do injectors before doing meth.

Which fuel pump? I'm not seeing it. LPE Big Bore?

me or Blaq? I didn't do high side. I did do the Lingenfelter high flow check valve, but that is low side as well. Another item to add to the list Blaq! I wish while the blower was off i did the 30% injectors. Doubt i would have done the Big Bore pump..Very expensive for only up to 10% flow increase on LT4s. I would think the injectors is more bang for the buck.

Yea I saw your thread where you were talking about the fuel lobe. I do think mine is 32%. I hope that doesn't give me any issues.
Yes I have the ATI balancer. They were able to get me to 16 psi boost with the smaller upper pulley in combination with the ATI balancer. So far we are at 740 RWHP. I should have final numbers later today. I'm hoping to be over 750 RWHP on 93 and break into the 800s on race gas.

Again my numbers are in 6th gear which is about 30 HP lower than 7th.

I have the DSX Aux pump.

Pretty much same here..I am in the 15/16 boost range. I think your goal is doable with ur parts list. And as I have learned depending on what afr/lambda the tuner uses. At .8 Lambda I was 801rwhp on 100 octane, but after retune and at .88 Lambda 805 on 93. On e47 was 848rwhp but manifold Temps were high in 165 range. My end game is e30 without doing high side.

Is .88 a little too aggressive? Or is it ok because of DFI?

Depends on who you talk to since 99% on this forum say too lean, but can't say there is any data to prove them right. I have been readjusting mine to be in the .84 to .87 range while at e30. My fuel pressure on both low and high side have been good and steady. Inj pulse width based on a log from tonight was 5.7 to 6.1 range. On 93 octane it was 5.0 to 5.2.. My reason to run e30 is the cooling benefit plus being able to get same or better gain and can stop having to add boostane.

This guy did mine..if you forward to 9min mark he mentioned what afr he likes for LT4s. This is not my car.
https://youtu.be/rqQ5cNQVeX8

There’s a reason why the 32% lobe is more common. There’s been reported pump issues/failures running higher, so most stick with 32% as it’s the safest.

Run some boostane, torco, racegas etc. or if there’s real race gas you can mix some in.

I did a search for race gas but it seems there are no stations close to me in Nebraska that have it. This wouldn't be an issue if I was in Jersey, lol!!

I'll look into the Boostane and Torco. But will it be enough to bring 91 octane up to 93? I figure a full tank out here will probably last me about 2 months. I figure I DD my truck and I filled up around Sept 24th and didn't have to refill it again until a couple days ago. So my ZL1 which won't be my DD will probably last much longer.

Boostane will take you over 100+ octane depending how much you add. They have a mixing chart on the website. I have been using it for the past 4 years. I would buy a 5gal can when they run their 20 or 25% off sale with free shipping. It would last appx. 1.5 years. I did change to e30 2 weeks ago so i wouldn't have to bother with it anymore. I will keep adding the boostane however til its used up.

Ok I'll see if I can get some here in Omaha.

The car will be finished tomorrow!!

I got my final numbers. It made 533 stock with RF intake and MBRP Race catback. After the Stage 4 build it made 745 on 93 octane, 783 on 100 octane, and 772 on E44. I'm happy with those numbers. I think they're pretty good for a nice, safe, efficient, setup that has room to grow. And the blower is nowhere near maxed. So there will be no issues with heat soak or excessive intake temps. For now I plan to get it back and see how I like all the new performance. I should have it back by Thursday.

BTW, all the pulls were in 6th gear and on a Dynojet. I'm looking forward to ripping this thing when I get it back!!

I would be very happy with those numbers for using 93, good job. I can see the next build already with the SC ported, 112mm TB, larger injectors.

Do you know what Lambda it ran at? I can't remember, besides dsx low side pump, what other fueling mods?

I don't have any info on the AFR. I'm pretty sure it was tuned with some room left. And the DSX Aux and flex fuel conversion are the only fueling mods.

I'll post the dyno sheet in a bit.

Being our build is so similar, if you get time and do a wot test or talk with with your tuner, can you see what your Lambda reading and Inj Pulse width are and what ur PE tables are at? I would like to compare. At e47 my tuner had me at .88-.89Lambda. He swears its fine to run it that lean, but i am more in favor of .84-.87 range. Others here think my range is too lean as well and say it needs to be .82 which to me is on the rich side still.

Since it is Direct Injection I guess it can run a little leaner than what the older engines could get away with. But I'm not sure if I'd be completely comfortable with it running that lean tho. I say that but meanwhile I don't even know where mine is at. LOL!! I'll see what I can find out for you so we can compare notes.

.88-.89 does seem to be pushing it closer than what most do. It sounds more like an aggressive tune.

I just got the car back and took it for a spin!! Holy crap is this thing insane!! It is nothing like it was before. And it is crazy loud. And that blower, you can hear all that air just being forced in. This thing is wicked!

So for now I am just gonna baby it to get used to it and to kinda break-in the parts. I doubt I can go WOT because it just feels like it will spin right out. So until I get a good set of tires and get used to it I won't be going all in. Driving it aroud town it rides nice but has an aggressive idle...not too rough, not too mild, it is right where I want it. Power delivery is instant. That cam sound (not the lope) is just awesome!! And the lope itself is nice and choppy. This is a very aggressive street setup and I think this is about all I want for now. There is room left and maybe I'll explore that soon. But for now I am happy with it!!

BTW I am on the tune adjusted for 91 octane. So when I get back to NJ I can see how the 93 octane tune works out!!

I'll post pics tomorrow.

Sounds good...if you don't already have it, Drag Radials at that power level is a must...it gets fishy very fast on regular street tires

BTW, who does your tuning?

Way to go Blaq, congrats! Please post a video under the hood and running. "Wicked" might be a good name for the car.

This time around Jeremy formato at Fasterproms. Basically I was looking for someone to tune the speed density as the person who did the tuning after the parts install last year had it turned off using MAF only.

did a test hit on my way to work today starting in 4th gear and not sure if good or not, but took 8 sec flat to go from 63 to 155. The fueling up top looks good, just need to richen up the MAF a tad lower down on the wot range.

Thanks man. I am still getting used to it. And I'm trying to see if the tune needs some adjustments. I am definitely gonna need some better tires and a catch can. I have the MPS4S tires and they are not up to the task. I'll keep updating. Hopefully I will get around to making a decent video in a few days.
I'd say that is pretty fast. I would try mine for comparison but as it is I'm a bit scared of this thing. And I need new tires to handle this power. Just doing some 1/2 throttle punches from about 50 and this thing felt like it wanted to get sideways. So I'll have to take my time until I get more used to it and get some new tires.

Yeah..inhad the ps4s and sold them for my drag pack. I did it for safety. Have you done the BMR rear suspension upgrades, mainly the diff lockout kit?

.82 isn't too rich...there is data all over the world wide web supporting that is the target for max safe power. Several guys over at HPT forum support that. Jeremy Formato is the only tuner I know running FI cars at NA AFR's. And as I mentioned before he could be compensating for his dyno wideband reading leaner then what it really is. The best way to tune is by giving the setup what it wants. Read the plugs and look at the log data. Widebands are not 100% accurate.

I can see in the logs tuning my brothers H/C 2650 Z06 that it makes the most power in the .82-.84 range on his wideband.

Either way congrats on the build...get some tires for it!

No I haven't. But perhaps I should. Do you recommend it?
Mine isn't at .82. I have no idea where mine is at. I'm gonna start digging in to find out some time next week tho. IneedAZ was saying that his is in the 87-89 range which does sound way too high.

And thanks man. I'm gonna do some tires soon because it will need it. I'm debating on which ones to get.

Doing the BMR rear suspension upgrade will help with the the rear end sway under acceleration.

I am not as brave as Jeramy had my afr. I have been dialing it in to run on my own to be in the .85 to .87 range. I'm ok with that range. Lot of folks on various ZO6 sites use that range with good success. I also spoke with the guy from Goats Garage and agreed.

I found I can run e30, be in the .85 to .87 Lambda range and injector pulse width not go over 6.1.

NT555R2's are pretty good tires. They should handle your power from a 40 roll.

They're good as all around tires? How many miles do you get with them?

Thanks for the info. I'm gonna start seeing about getting a set for the rear.

Look into the BMR lockout kit as it will help with the slack in the rear. As far as fueling..my guess your tuner has you running leaner like mine did or injector pulse width is 6.5 or more. I'm concentrating on running e30 while readjusting the tune richening it up from his tune. My original tuner had me too rich for my liking at .8 Lambda and recent tuner complete opposite at .89. I am trying to meet in the middle with .85 yet be close to 6 or below for inj pulse width while using e30. I may change the injectors to bring the inj pulse width back down to 5 range.

Whenever u get time to do a log let us know where your at with those parameters...You will find 4th gear is where u will be starting at in order to maintain control.

Yes they are good all around tires. I have a set of those Nitto 555r2 tires in the rear of my Hellcat in a 305-35-20 which will be the same size you will get them in for your Z as well. I have a little over 3k miles on them so far with several burnouts with them at the track and mainly daily drive with them. They seem to have a decent amount of tread left. I might get about another 2-3 k miles out of them. If your just daily driving with them and minimal burnouts you might expect to get 6-8k out of them or possibly more depending on your driving style.

They stick pretty good for what they are. I have done a few test runs with them on my Hellcat and depending on the street surface I have hooked as low as a 2nd gear 30 mph roll with just a slight minimal slip and recovers quickly right after that and goes. 40 mph roll and up dead hooks. I have used these tires at the track on a prepped surface and they hooked pretty well from the start. Camaro guys can expect to hook better since they put the power down better with that Alpha chasis.

Also these tires corner pretty decently for a drag radial. They even hold up well in the rain. I have drivin at highway speeds of 70 mph in the rain with them and I felt like I wasn’t even driving a drag radial. I am still careful with driving in the rain with drag radials but these impressed me how they handle the wet since I have driven them in the rain quite a few times with no sign of feeling uncomfortable with them. I would definitely keep the PS4s up front as they do good for channeling water out of the way from the Nittos. Also for what it’s worth I have found setting them at around 26-28 psi seemed to be good range to keep them in for daily drives and traction purposes whenever you need to do a street hit.

I’d definitely recommend you get the BMR stuff as mentioned plus these tires and you will enjoy your heavily modded car a lot more. The car will spin a lot less and hook up much better to the point where your balls will fly into the back seat.

Here's a pic. She's a little messy but it looks good.

Might want to double check as I am not 100% sure, but I thought the lower coolant tank is usually empty?

There is a cold fill line on the top reservoir but the manual says it should be completely full when cold.

For the bottom reservoir the manual says to fill it about half way when cold.

The top was low and the bottom was empty when I got the car back but I didn't get any alerts or warnings. I filled it and still no alerts or warnings. So who knows? Lol.