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That makes sense. do you happen to have a stock 2019 Z06 HPT file you could share? I’d like to see how its treating the new fuel pump and aee what may need to be tweaked.
Ant
I have not seen another 19 car at all yet aside from mine. I thought all of the 2019s were going to be encrypted though.
Ben, That is indeed the same part number that I have for the ZR1 low side pump. So thats great news that the Z06 has the same pump then and this confirms it.
So with this pump having more going on - how does this relate to the Z06 then if its not a direct install for other years/non Z06’s? What more does the Z06 have going on this year vs previous?
While I know that doing this pump is not a substitute for the true low side systems available, I think the extra 20% will be enough to do what I need for now in that aspect. I can run about E45-E50 which put me over 900 wheel. 20% more low side fuel is just the bump I need to run either a slightly higher E ratio, or a slightly higher power level at E45ish.
I have this same pump on its way to me right now, ETA tomorrow. It would be a shame if I couldn’t drop it in and go. Guess we’ll see. Fingers crossed!
That may indeed be the case it seems!
If the pump is different dimensions, then the hanger is probably a different style. I can't imagine there is much more that could be going on unless they have a voltage/amp of some sort powering the pump. Keep us posted how it works out, I am about to pull the trigger on some upgrades myself. This changes my plan if that pump works.
Here are pics of the 2019 ZR1 / 2019 Z06 low pressure fuel pump. If anyone has pics of the earlier model LPFP’s from earlier C7’s please post a pic of it along with a pic of the connector!
Interesting that the part number is 1 digit higher on the pump. I ordered part number 84240348 (which is on the label of the box from GM) but the part number on the pump itself is 84240349. I assume it is a slight revision.
I’ll be starting a dedicated thread about the pump project that I’ll be doing
^^^ Ant buddy let me know by a p.m. please how this comes out for you. I am getting now Cunningham rods & pistons set up & stage 2 cam & all of that now. But not going to be doing nothing to put it all together until this late winter.
I want to get all the fuel worked out the best that works for the TI head unit but want to turn the boost up as much as it will take in the car & per say still be safe also. Robert
sooooo did it work? lol I'm guessing no from what I've seen, esp on the ZR1 because high flow mode doesn't kick up till COT kicks in, but if it happens to integrate with the previous FPCMs and tunable, it could. Given all I've seen though, I'd be surprised!
sooooo did it work? lol I'm guessing no from what I've seen, esp on the ZR1 because high flow mode doesn't kick up till COT kicks in, but if it happens to integrate with the previous FPCMs and tunable, it could. Given all I've seen though, I'd be surprised!
Im still a few weeks away from physical install. Waiting on some other parts since I am dropping the rear cradle at the same time. Also haven’t gotten a 2019 hpt file yet for comparison.
This comment didn’t seem to get much attention. Is the 2019 Z06 upgraded to the same
diff as the ZR1?
Originally Posted by djnice
Wouldn't surprise me if they used the same parts. Saves cost. Similar Tadge says they upgraded all the rear diffs on C7's only to have a higher strength rear diff for the ZR1. They didn't want to produce multiple diffs.
my question asking Ben if the 2019 he has, has been tuned yet, was never answered. Let us know Ben.
As far as Ant's pump working, i see no reason why it would not, as long as it runs on stock voltage and amperage as the previous pumps. If full electricity/power to the pump is the same, then there is nothing different, just how/when the computers deliver that power on the stock ECU, but when one is tuning the car, that can all be handled.
The question for tadge or for someone to find out is if both max power electrical outputs to the fuel pumps are equal between the 2019 and 2018 at WOT. If there is a difference, then something would need to be added to the 2018 and prior, like the old boostapump voltage boosters, etc.
^^^^^^ Don't think the question received a definite answer because no one has reported on this forum trying to tune a 2019 "Z06". It has been answered that currently the 2019 "ZR1" can not be tuned.
I dunno about yours but my 2015 is still a new car. 6000 miles or so and fully detailed and probably cleaner than the 2019s coming out of PDI right now!
As to the original question, I think you're looking at the same problem as faced by the Duramax tuners. They got greedy and blew up too many transmissions and motors, so GM had to get conservative on aftermarket tuning. Can it be subverted? In theory, no, not before the heat death of the universe. But in practice, shortcuts are found.
I dunno about yours but my 2015 is still a new car. 6000 miles or so and fully detailed and probably cleaner than the 2019s coming out of PDI right now!
As to the original question, I think you're looking at the same problem as faced by the Duramax tuners. They got greedy and blew up too many transmissions and motors, so GM had to get conservative on aftermarket tuning. Can it be subverted? In theory, no, not before the heat death of the universe. But in practice, shortcuts are found.
I drive my 2015 and enjoy it. 6,000 miles went buy in the first few months. The 2109 Z06 can be tuned where can you tune the ZR1? no.
Im still a few weeks away from physical install. Waiting on some other parts since I am dropping the rear cradle at the same time. Also haven’t gotten a 2019 hpt file yet for comparison.
Originally Posted by maxxmuscle
So was the OP's question ever answered ? Can the 2019 be tuned ?
I was unsure till I just saw a 2019 Z06 that was tuned at some shop, can't recall which one, so until they get the new PCM (unlikely on the C7 LT1 LT4), they can be tuned; however, you can guarantee the C8 won't be able to be hacked right away.
Originally Posted by Mikec7z
my question asking Ben if the 2019 he has, has been tuned yet, was never answered. Let us know Ben.
As far as Ant's pump working, i see no reason why it would not, as long as it runs on stock voltage and amperage as the previous pumps. If full electricity/power to the pump is the same, then there is nothing different, just how/when the computers deliver that power on the stock ECU, but when one is tuning the car, that can all be handled.
The question for tadge or for someone to find out is if both max power electrical outputs to the fuel pumps are equal between the 2019 and 2018 at WOT. If there is a difference, then something would need to be added to the 2018 and prior, like the old boostapump voltage boosters, etc.
We have been developing a tuner for the ZR1 that can handle bolt on changes, but we'll need to do a stand alone to be able to do a cam swap etc unless HPT figures out a reach around
I will still be shocked if the pump swap works because the new pump and control module etc are different, with an apparently different control strategy. So, if it works on the old control PWM, it'll be OK, but the new one on the ZR1 only offers 52psi until COT kicks in and port comes on, and then it jumps up to 72 psi.
I dunno about yours but my 2015 is still a new car. 6000 miles or so and fully detailed and probably cleaner than the 2019s coming out of PDI right now!
As to the original question, I think you're looking at the same problem as faced by the Duramax tuners. They got greedy and blew up too many transmissions and motors, so GM had to get conservative on aftermarket tuning. Can it be subverted? In theory, no, not before the heat death of the universe. But in practice, shortcuts are found.
If my 2015 only had 6k instead of 35k it would be a tougher choice. Rest assured from the new factory and new paint work it is a improved finer machine over the 2015 with more Hp potential with my patented mod approach. The improved low side fuel may bring even more RWHP than my already great results. The 2019 or maybe a 2020 not sure on which but I for sure will be getting before too long another M7 Z06. Since the M7 is almost sure to be gone as well as FE.
GM worked and improved this platform to where it is now. I would say pretty fine.
I was unsure till I just saw a 2019 Z06 that was tuned at some shop, can't recall which one, so until they get the new PCM (unlikely on the C7 LT1 LT4), they can be tuned; however, you can guarantee the C8 won't be able to be hacked right away.
We have been developing a tuner for the ZR1 that can handle bolt on changes, but we'll need to do a stand alone to be able to do a cam swap etc unless HPT figures out a reach around
I will still be shocked if the pump swap works because the new pump and control module etc are different, with an apparently different control strategy. So, if it works on the old control PWM, it'll be OK, but the new one on the ZR1 only offers 52psi until COT kicks in and port comes on, and then it jumps up to 72 psi.
The 52 psi note is extremely important. That means that the siphon pump in the passenger tank can operate at pressures that low, very important for a tuner to know. On the c5, i recall if a person dropped the fuel pressure in the feed line up the tunnel, with a regulator at the rail, they could run into issues with the siphon pump in the passenger tank not performing properly, as it operates via the pressure from the tunnel line pressure from the drivers tank.
What they are doing is keeping the drivers in tank pump safe by having it do less work 95% of the time, as it now flows more volume, and volume to the HP pump at the motor is all that the HP pump actually needs. This will be important for Ant to know when he tunes his vehicle, that the fuel line pressure up the center of the vehicle should only be 52psi, and no more, up until his car goes into a certain level of boost pressure, then kick it up. Unless they changed the siphon pump in the passenger tank, but i doubt it... but it is worth a check to see if the passenger siphon pumps part numbers are the same. If they arent, then one would probably need the new siphon pump engineered to run at lower pressures.
His computer will be able to accommodate the pump I believe, but the main problem will be if the max voltage/amps provided to the 2019 are higher than the 18 and earlier c7 can deliver whatsoever. Then he wont be able to reach 72psi at all.
We need the volt/amp readings off the electrical line to the pump on the 2019 during WOT. Or he can just plug it in and see if he is able to tune it to the 2 different fuel pressures, and if so, he is fine.
Its my belief that the new computer was not for that pump alone, it was for the port injection system. That pump can be put into a car without port injection is my gut. Chevy went to a standardized computer for simplicity reasons during manufacturing, and also to block out tuners via their new encryptions etc.
06-07-2018, 02:34 PM
