66 Rag Turbo 1600 Mexican EFI Megasquirt

[66NCVW]

I did log it. I'll look at the log and check the IAT's when I get back to the car. I'm sure there is a little more left in it. Pulls were to 5200 RPM. Here is cell phone in car video we took after we got it off the rollers.
https://youtu.be/Zu-QhC3s0ps

[MarioVelotta]

They are running E85, so that is going to cool the intake charge a bunch

[Clonebug]

Try a third gear pull starting at 1500-2000 rpm and log the boost onset.
At what rpm does it start building boost and where does it hit 10 lbs?????

[Clonebug]

They are running E85, so that is going to cool the intake charge a bunch

The fuel will be injected after the IAT sensor so he should still be able to tell what his intake temps are.......

Make sure you listen for detonation and use a little boost retard id you hear any hint of it.

[MarioVelotta]

The fuel will be injected after the IAT sensor so he should still be able to tell what his intake temps are...

Yes but cylinder temps are greatly reduced by the almost 1.5X amount of fuel. I agree that the temps out of the turbo will be high (probably close to 140-150 at 10psi), but the volume of fuel is going to cool it greatly.

[66NCVW]

Ok, I still haven't pulled the logs off the other laptop. I did take it out for a spin with my new laptop today and was watching the IAT's. The highest I saw was 18x degrees and that was pulling through the top of third @ 11psi It quickly drops back to 140ish. Then will go back up to 17x-190 depending on if I've been through mulitiple gears holding boost. Very FUN! I do plan on doing an air to water intercooler at some point. Right now I think we are going to do some modifications to the manifold to add more ground clearance, as well as turn up the boost, which I'm sure we will need that intercooler then.

[66NCVW]

I've been loving this thing! I'm now making north of 11lbs of boost. Spikes at 13 and settles around 11.5. I know I'm leaking boost around the intake boots on the stock mexican intake. The weather has been warm the last couple of days and I'm seeing IAT's of 200-210!! Going to have to turn the boost down until I get an intercooler setup. It's pulling timing where it's at now. I have ankle replacement surgery on March 8th. Hopefully I'll get the intercooler done before then but it's not looking very likely. For the time being I'll turn it down to 10lbs. Does anyone have any opinions on intercooler setups?

[Piledriver]

Air to water unless you dig a pro-turbo rear wing.

[Chip Birks]

Air to water unless you dig a pro-turbo rear wing.

Yup

[Clonebug]

Water Injection will work too.

I see IAT's of 135 Degrees at 22 lbs boost if inlet temps are at 80 degrees or less.
Without WI the temps would be upwards of 265 degrees so it definitely works for me.

I inject over 3.0 gph with two different nozzles.

[Chip Birks]

Water Injection will work too.

I see IAT's of 135 Degrees at 22 lbs boost if inlet temps are at 80 degrees or less.
Without WI the temps would be upwards of 265 degrees so it definitely works for me.

I inject over 3.0 gph with two different nozzles.

Very good point. I don't see a drop in temps with my intercooler, but i do see a huge buffer to temp increase. Even with big boost on a high load 4 gear 1/4 mile pass, temps generally don't rise more than 15 or 20°F. When i throw meth at it temps go lower than they started. I'm sure if i iced my intercooler tank i would see bigger changes in temps, but i don't really care. I like the consistency that comes with ambient temp water and such.

[Piledriver]

Air to water unless you dig a pro-turbo rear wing.

Yup

...Not saying that's a bad thing, more a matter of taste...
I have a couple huge Volvo air/air intercoolers for some reason. (I think they were $10 )
They are the perfect size to go under a 914 decklid, with big fans.
Not sure how well that would work, but it seemed like a good idea at the time for $20.

If I had a GL T1 I would be tempted to do the wing...

[petew]

I guess it depends on how much you want to cut/mod your car. Water injection is pretty effective when setup well. Getting it setup is the complex thing it seems. In the end I reckon it's about the same price as an intercooler setup.

[66NCVW]

I'm definitely going air to water for sure. I don't think I'd be able to run the exchanger that far forward in my car b/c of how low it is in the front. Hopefully mine will work under the package tray with a reservoir. I'd like to do the intercooler before any water/meth injection if I can. I'm already running e85 which isn't going to the easiest to find where we are moving. If I can avoid something else I have to fill up and possibly run out of I'd like to.

[Chip Birks]

My heat exchanger is by the torsion housing. Opposite of my oil cooler. Water tank is under my seat. Like i said, my temps aren't crazy cool, but they stay very consistent even at almost 30psi. I have never made any effort to chill the system, and probably won't unless i'm desperate for a time slip.