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Hi Patrick, in the end we were so pleased with the torque curve that we didn't feel we could gain much by playing around with the cams from the current setting.
The new engine will likely make power to 8000-8500 rpm so it should gain some nice power just by allowing the engine to breath higher up.
But we're close to the limit of the EFR9180. It's really not a 1000 hp turbo for big displacement engines.
But I'm chasing cooling issues that have followed the car since several years. I'm now leaning towards stock water pump cavitating with the setup in the car.
Looking at pics from your Meziere installation! Likely to go that route during winter.
Yeah that tq curve is very nice and usable. Especially on your tracks I'd imagine. Gearing may effect where how high you need to go in rpms in terms of staying in a certain cog on a certain location on any track...but with the SQ box it's possibly not as crucial. I would definitely look into an aftermarket waterpump as we've discussed. Sorry I can't get you the model number of mine. I just can't seem to find a receipt or even pic showing part#. It does have the highest flow rate though. As you probably know, Rod switched to an electric pump a while back.
Very impressive indeed.
How is the transmission holding up? And has it been strengthened to take the extra load?
With respect to electric water pumps (EWP) I do have references and positive experience, although they are most beneficial for street cars in traffic.
Here are references to 4 different EWP manufactures, some of which also sells controllers:
I originally had a Davies Craig EWP-80 on my Jalpa TT, but it had inadequate flow. So since I was installing turbochargers, I got creative and designed a hybrid water pump based on a turbo compressor and a Davies Craig EWP motor as shown below. The simple philosophy behind the effort was, that turbochargers have much better engineered fluid handling capacity and from fluid dynamic standpoint air and water are not that different (except for compressibility and density, which is compensated for with impeller speed). The result is a measured doubling of the flow.
Very impressive indeed.
How is the transmission holding up? And has it been strengthened to take the extra load?
With respect to electric water pumps (EWP) I do have references and positive experience, although they are most beneficial for street cars in traffic.
Here are references to 4 different EWP manufactures, some of which also sells controllers:
I originally had a Davies Craig EWP-80 on my Jalpa TT, but it had inadequate flow. So since I was installing turbochargers, I got creative and designed a hybrid water pump based on a turbo compressor and a Davies Craig EWP motor as shown below. The simple philosophy behind the effort was, that turbochargers have much better engineered fluid handling capacity and from fluid dynamic standpoint air and water are not that different (except for compressibility and density, which is compensated for with impeller speed). The result is a measured doubling of the flow.
It has worked great since 2014.
Laust
Thanks for the info.
I'm not sure yet what needs to be improved with the cooling. If it is hot spots or cavitation. Got an answer from Meizere and apparantly basically all mechanical pumps flow more than the electrical ones at higher rpms so I suspect flow is not the issue here.
The transmission is a Kaps Transmission 6 speed sequential transaxle. It is rated to 1000 Nm.
09-12-2018, 07:48 PM
