Whats up brother. Nothing wrong with trying a little more meth. Is your motor going to blow up if your add a lot more. meth? Of course not. Bad comparison, but at this same NFZ event on much warmer days in April in the heat of the afternoon I'm seeing start IATs up in the 130's. End of the 1/2 I'm in the 80's. Of course just a couple bolt-ons nothing like what you have but it gets my little 700hp car near 180mph traps. Your setup will create more heat than cars like mine and so I don't understand why the tuner doesnt like meth. It just artificially creates lower DA for you and adds a little fueling for stability. You are good at setting up a good reliable meth system and testing so why not at least try to add larger nozzles (maybe some dual CM14's) and crank up the pump pressure and do some tests. Can mix some meth and boost juice. I would bet your car runs a lot stronger with more meth/a lot lower IATs.

 

It's just his preference and I would tend to agree with him. I already have port injection and I don't need methanol for supplemental fueling, so if I spray more it will start to mess with bank to bank fuel trims as flow distribution is not always equal. For your setup it's mostly used for supplemental fueling vs my setup only for cooling so it's a different ballpark. We did have larger nozzles (BM7) but we cranked it down to BM5s.
I think it will be better with 4 nozzles and adding two before the intercooler, so I will play with that.

 

Bigger nozzles and boost juice? Not
Much fuel in that. And could substantially cut down on IATs. It's pretty close to free to just try.

 

I will be trying some stuff out with Wayne, he has a few more things he wants to test before we go larger nozzles etc. If I go with larger nozzles etc, we will have to change some stuff in the tuning so it goes hand in hand. I have thought of going 50/50 like you suggested, so we will see. Just gotta listen to the tuner as he knows best. However I do evaluate my logs myself so I can give some suggestions to him and we work together on it. We're still in the infancy stages of fine tuning, it's a longer process than most think especially with the standalone. Overall I'm really happy how it is right now, the car drives flawlessly and packs a punch. I can't imagine how it will be once it's all finalized for sure.

 

More like a never ending process

 

Hello,…

I hope all is well.

How is she running? How’s the motor?

 

Not too bad, sorry I haven't updated you guys lol.

Ran the car at the last NFZ event a couple months ago. The car did 193mph on my kill map at 42psi.
At the end of the run we had some coolant leak, so we thought it was the head. I turned it down and did 188 on the lower map, no coolant leaks. Then turned it up again, and we got a leak.
So we're not sure if the head is slightly lifting or not.

I added a coolant pressure sensor and will be logging this week with Wayne to see how things are looking. Once we confirm everything is OK, the car is going back under the knife.
Changing the turbos to slightly larger turbos and will be trying out the Xonas since Garrett is on a never ending back order. Also, the main part of this will be the air to liquid change. No more methanol and will be fitted with an icetank as well.
Another main issue I had with the Garretts is that I really need to run them hard. To make 1100whp, they were spinning at 165k RPMS (max advised is 150k from Garrett) and run lots of boost.
I'd like to make 1100whp on less boost if possible with the new setup, which should have lower IAT as well and be more efficient with my goals.

 

Good to hear it's still going!

I've experienced the exact same problem on a diesel with respect to the coolant leak - at 40lbs, no problem, but anything above that, head was lifting and we determed we had stretched the bolts, fortunate that this was discovered before lunching the motor.

Cheers,

 

It sounded really good on Instagram. That lope made me rethink keeping my stock heads lol.

On the air-to-water setup, is this something you guys are fabricating or someone else? I know Wayne mentioned wanting to try one when I bumped into him at John's shop last year but other than Dave, I am not aware of anyone else using one on the 991 platform. Is this something that would replace the air-to-air or run in cofunction? Would a street car see benefit from this or only high horsepower cars looking for maximum benefit on the track/half mile? I know all the V10 guys go this route but I figured this was partly because there was nowhere to mount an air-to-air setup on those cars.

Excited to see you turn this up and maybe we can meetup again this fall/winter at NFZ!

 

Thank you for the update.

yes,…sounds like the head is lifting.

h11 tool steel head studs made by a1 technologies in Paramount solved that problem for me on a built NSX years ago,…

I don’t know if they’re still around,…???

 

It appears a1 technologies is out of business,…

has anyone dabbled with the inconel 625 head studs offered by protomotive?

they claim to hold 1000+ whp on the 997.1 engine…

they don’t list a power rating for the 9a1 engine.

 

Haha, thanks man. I love the cam lobe as well, it's so damn beefy.

It's going to be a custom fabbed by the same person who made my turbo kit etc. It replaces the air to air system and adds a few things etc. New chargepiping, all new intercooler system, dual heat exchangers, ice tank, waterpump, wiring and hoses to plumb everything.
Street cars can benefit from it too but it's very expensive to do. Yes, the V10 guys do it because of that exact reason you stated and kinda the same with us too. At this power level the intercooler sizing that we currently have is not enough, especially the "airflow" or lack of that gets to it.

The car has upgraded head studs and an O ringed block. Two other cars at the event with basically the same setup as me did fine and trapped 200mph+

So we need to evaluate things one at a time to make sure all is well.

 

You need to up the timing and lower the boost

 

We played with that on the dyno and wasn't too impressed.

At 32psi (1000whp) we added 3* of timing to see if that helped much and it was only 30whp. Not worth the risk for little reward. 1psi made 20-30whp, so we went that route.
However, I do think that 42psi is a lot. Next time on the dyno we will evaluate lower boost pressures to see where it maxes out.

 

lesss goooo!!