Here's the skinny: Going to be running a near max effort D-1SC on my 355. It's a trans am, and as such a FMIC isn't going to work. As such, I'm pretty much stuck with the ATI twin high flow intercoolers. From the research I've done, when really leaning on the D-1SC and making some good power, they're not as efficient as what you would need.

How feasible is it to run a methanol system to piggyback the intercooler setup full time to keep the IAT's down?? Ther car is a street/strip car and should see about 100-250 miles of street driving when complete, with A/C and all. Just trying to figure out if this is something I'm going to need to look at.

 

Just courious why you say a FMIC isn't going to work. If you are only going to drive the car 100- 250 miles of street driving, a good grade of racing gas isn't going to put you in the poor house. The tune is everything with this sort of combination. Alcohol injection is certainly an option, but I would see how the car responds first without it as it too has its drawbacks. A 355 with a D1 should make more than adequate boost numbers (+15lbs). Not sure of what your goals are though.

 

Looking for 700+ to the ground. But whatever it makes, it makes. Basically, what I'm trying to keep from happening is street driving the car in the summer time and seeing outrageously high IAT's. The FMIC isn't going to work on my car because there's no way to get airflow over it behind a Trans Am bumper, and I AM NOT removing my fog lights or cutting up my front bumper. This isn't a race car (yet....) and I want to keep it looking relatively stock. THe tuning shouldn't be a factor as we're using a FAST XFI.

 

intercooler/meth works
I have a 00 T/A....incon kit which has two intercoolers like the ATI. I always run methanol with 93 octane. It dynod 736/747 on turbos...i have even sprayed a 100 shot on top of that...no detonation. I think you will be fine with a methanol kit and 93 octane. Gotta nail your tune down but thats not a problem

 

I wouldn't run a blower car without water/alcohol injection. In fact, I run mine with no IC and just the injection system.

Rich

 

i thought about this since my intercoolers are maxed...how much alky you spraying vs fuel? How much timing do you have to drop for the summer heat vs winter. Are you running 93 or race gas?

 

How realistic is that for a car that's going to see a lot of street time though (like mine)???? I'm 100% new to the whole methanol thing, and just trying to sort everything out. Can it be set up to be injected via boost reference so it's not constantly putting the same amount into the system, increasing the duration between refills?? I presume I'd have to run a seperate reservior for the methanol, but hwat size, and where to refill??

 

works great for the street. most kits come with a boost reference that increases the injection with boost. i have the alkycontrol kit. imho it is a top notch kit. also uses the winshield washer tank to fill the meth/water. if you use a 50/50 mix it isn't really that expensive especially for the added safety it provides.

 

I dumped my intercooler and went straight meth also. I'm running the Alky control kit and it is boost referenced. I picked up almost 4#s by dumping the IC. Think about how often you will be in boost on the street with 700RWHP not very often at all.

Jeff
96 SS BLOWN
96 TA 396 D1

 

My friend Bob Kennedy makes an extremely high quality kit: www.kennedysdynotune.com An ~1:1 water/methanol works best. Does not lower intake temps as much as an IC, but poses no intake restriction and increases the apparent octane of the fuel. As was stated, the boost fluid is injected only under boost. You can use straight water if you need to.

Rich

 

Thanks for all the help guys!

 

Did I read that right...straight water? What like distilled water or regular running tap water? Any problems running the kit along w/ intercoolers or is that a double negative? I'm trying to learn this stuff too. Just when you think you are done w/ a project something else pops up to consider doing.

 

Hmm.... I plan on running psi of boost on my 383... I wonder if Alky/Water injection is a necessity if I already have a FMIC?

-B

 

Water is ok in a pinch. You need to be careful about changing the mixture from what you have tuned with though.

No reason not to do both.

Rich

 

Im just wondering if the intercooler alone is good enough for a 383 with 15psi that driven daily. Can't afford to spring another $600 now.

-B