It sounds like my HUGE performance differential (almost a second) is "probably" due to timing vs. IAT programming??? I'll get more info in 2 weeks and confirm this....

I'm waiting on a magnavolt booster. Once I get that, I'm hoping it will resolve my dropping fuel pressure concern so that I can have this re-tuned....

Interesting feedback on the heat transfer properties. Makes sense though! THanks.


QUOTE=trever1t;4012480]Yeah aluminum transfers heat exceptionally well, that's why it feels hot because it is transferring the heat from the block My IAT's go into the 140*s but cool down pretty quick. I did go to a double size heat XR but the rest of the cooling system is stock.[/QUOTE]

 

Aluminum is great at transfering heat, but polished aluminum is great at retaining heat too. The fact that you have the polished unit probably doesn't help, but I doubt that's the sole issue that's causing your truck to get heat soaked.

I want to know what the effects are of running meth through the blower. I thought it deteriorated the coating on the rotors or something. I've been trying to get some info from Magnacharger on this regarding a carb'd MP122 and E85, but I've had no luck.

 

I'd be interested in this as well. Let us know what you find out.

Also, what about icing the blower down? I didn't think that would be good due to the close tolerances in the blower?

 

I have iced my blower at the track. I usually do not let the ice sit on it in one spot for too long.

 

Cool, thanks.

Your combo almost looks identical to mine.

Did the methanol injection help you out any in terms of performance?

What was your best before the meth?

How much timing before the meth and now? Thanks for the info

 

Meth definately helped me out. I ran 13.1 on 5psi with the 6.0. I ran 12.5 with 8psi and meth. Horsepower went from 448 to 475. Timing went from 18 to 21.

I think the meth helped at the end of the track where the blower used to get hot and the PCM started pulling timing.

 

I had heard that too, a long long time ago but I haven't heard anything in the last 3 years about it and an awful lot of us are heavy into the meth. Maybe BC can tell us of any returns with lobe issues due to meth use?

I don't recommend using the ice or any other local coolant, I can see the lobes getting damaged due to metal warpage with the cold/heat. I know you and others have done it J but it doesn't seem wise to me.

Methanol effectively increases the octane ave. for the fuel burned which in turn allows more timing without detonation. I do not think it has much of a cooling effect on the IAT's.

 

"Timing went from 18-21"

Was it 18 degrees at 5psi with no meth and 21 degrees at 8psi with meth?

Scary that I'm only running 10! LMAO!!! I forget the exact numbers, but my buddy who I was racing this weekend (08 stang with a ton of bolt ons) went 13.40's at 104 on street tires. I went 13.10 at 101 in the 1/4! My 1/8 mile et and mph were faster then his. My mph was 1 mph higher at the 1/8, but 3 mph lower at the 1/4. I'm not getting any knock retard, but I suspect it is pulling a ton of timing at that point???? Or maybe leaning out? It doesn't nose over, but it's not right either.

Anyone going solid 12's with a maggie blower and a 04 and up returnless fuel system and maintaining good fuel pressure??? Mine drops from 62 to 50 by the top of 2nd

Thanks for the help guys!

 

That could just be because your drag racing a truck. Trucks don't gain mph after the 1/8th like cars do. They have a lot less cDA than us truck guys. Plus if you're 4wd or AWD, it tends to slow you down on the big end.

 

I thought that too, but doesn't 101 seem pretty low???? Of course I don't usually drag race "Bricks" at the track --- lol!!!