Finally decided to go with a sts for my 2001 A4. I am going with stock internals other than cam for now. With supporting fuel/drivetrain mods, what boost level is recommended the safe point. I know you can't go wrong with 5psi, but I keep hearing 7 and 8 that alot of people run on these engines? Without lowering compression what is considered the safe point for boost level and horsepower? I hope to get 450 to 500rwhp?

 

Most say 8# I have the d-1sc and I have seen 10# on stock internals except cam and get on it hard with no problems so far......even with the 10 bolt (I guess Im lucky but sooner or later its ganna go boom)

 

need an intercooler

 

Gotcha, what about the methanol injection kit offered with it? I read with the 'built in' intercooling effect of the tubing and the meth inj that this displaces the need of an intercooler? I am not to sure of this one? Intercooler or meth or both?

 

Personally, I am against putting anything but gasoline into my engine. I would go with the proper sized intercooler, and the methanol would then be unnecessary.
Your mileage may vary, this is just my own biased opinion.

 

Thanks, that was exactly what I was thinking. Injecting windshield washer fluid into you engine? Whats up with that! Also, I have an A4, and it says you don't require a blow off valve. Only manual's do, anybody running sts on A4 without one? I have an eclipse auto turbo'd to **** and never thought of running without one on it.

 

all cars with boost need blow off /bypass as far as I know

 

im on 8.25psi with my sts and im rolling out on supercharged mustangs left and right hheheheh i have 2 settings the other 1 is at 8.75 but very rarely do i try that

 

PM sent.

 

Meth can lower IATs to below ambient, lemme see your A2A do that... You can run more boost and more timing as well from the octane value in the meth, or just use it for the low IATs and a safety net...

 

How long does one tank of meth/h20 mixture usally last for? Say one quart each? I don't want to be filling this up all of the time but research seems that this would be a good system. Just get the real stuff!

 

Running 8psi with a 255 in the back and intercooled, could you get away with #30 for injectors, where do they max out? Or are #42 required? With a goal for between 450 to 500rwhp. I have read that meth injection has no need for bigger injectors being it is a higher octane, I don't believe that though

 

42#

 

How is your tr224 with a turbo setup, I am thinking of along that lines of 224, 225, or 228 either 114 or 115 lsa. What lsa are you running?

 

sorry supercharger, but FI to say the least

 

TRTturbo.com thats the place that helped me with a direct bolt on intercooler and i highly suggest a tune, and i run 5 psi now but it is def safe to run 7 and maybe even 8 so...if u need anyother info lemme know

 

I agree completely. But I stand by my original statement, I prefer to only inject gasoline into my engine. JMO. And I did not say you must have an A2A intercooler. I prefer A2W. Not trying to, nor will I participate in, an argument. I merely stated my opinion.

 

Thanks guys, I guess it is hard to say unless you have tried the a2a, a2w and meth inject all on the same set up and compared results. I know a2a has its down falls of pressure loss and minimum efficiency but it deffinelty does the trick. I haven't research the a2w much but it just seems a whole lot more to the equation, opting for a more simplified and proven set-up; ata. Methanol seems perfect sense but for a daily driver not sure still on the reliabilty aspects. I am sure it works wonders, especially on a serious street/strip cars. Just doesn't seem right for an application wanting good reliabilty. Having to make sure its always full and working in order to pound the boost????? I checked out that site, seems like a great bolt on FMIC, but I think I am going to buy a universal core and route my own tubes. Save alot of money and probably get close to same results.

 

Dont have complete specs on cam since previous owner did it. But as far as I know it works good. Car pulls like a frieght train. When I put in new internals I am going to get a blower cam though.

 

I like the tr224 as an all around great cam, just thought that would be great if it worked in a turbo set up too. I guess depends on the LSA I decide to go with. I am thinkning 114 or 115, I should be ok with this cam on 114 LSA. It seems like others run alot more agressive cams and get away with it and have awesome results. I really like reverse splits and ahve also read that these are great turbo cams so I am in that delemma now.