So after much back and fourth with Joe at AIM we finally settled on a bolt on build for my 997. I wanted to keep this car quiet and running pump gas only.

When i purchased the car it had a GIAC tune, AWE Intercoolers and Exhaust (with Cats), Bilstein Damptronics.

Last year i had AIM install a Sachs 2.5 and BBI Slave

Now added is
1000cc injectors
Silicone Intake Tubes
BMS Filter
AMS Y Pipe
Cobb Accessport (I hated the Giac Tune)
Alpha 28's.

I also had the cam's pinned and all coolant pipes replaced and upgraded.

The car made just about 670whp on a conservative pump tune. It's now....a party.

Car
Attachment 537566
Graph


Another big thanks to Joe and AIM. Joe was patient with me and answered all of my questions quickly during the process. I am a very happy customer with a beast of a street car.

Cheers.

 

It's gorgeous and a monster I am sure! Just curious why did you hate the Giac tune?

 

Nice!
How much boost? I would say 18Psi?

 

alpha 28 and alpha 30 cars are probably the most fun ones out there.

 

The tune was ok I guess.... But after thr vtgs hit there was a drop off in power and then a build up again

But my biggest gripe.... Was during shifts. There was no shift in the world that was fast enough to avoid the car falling flat on its face between shifts. That was why I really disliked it.

 

20psi peak.

 

thanks for the kind words Joel. Glad you're happy with the car

 

Are those the alpha 28

 

Yes.

 

Do you know which version of the alpha 28? ie 2868, 2871, 2873. xona?

Any chance you have the parts list for the coolant pipes that were changed out? I'm going to be going through that soon and will use the Porsche catalog to figure out which hoses to order but it would always be easier to follow someone else's lead!

Do you know roughly how many hours labour it was to remove and reinstall the engine and get both camshafts out for pinning? Did AIM do the pinning or send the camshafts out?

 

I'd call Joe at AIM. I dropped it off and said

"Do everything you'd do to your car and call me when it's done"

The turbo upgrade originally was going to be a set of 63.5 VTG's but he had the A28's (didn't know there were different models) with less than 500 miles on them for a price i couldn't refuse.

 

This particular issue is one of the most annoying, it even does it on stock VTGs. If you log it you will see it holds boost fine but it pulls quite a bit of timing between the shift and brings it back in causing the hesitation feeling. Not sure if some tuners have figured out what table to adjust but it really sucks.

Looking at WGT cars with a Cobb AP I do not see the same behavior in the few logs I have access to. So I am assuming setting the VTG table to 100% turns off that issue.

 

Which 1000cc injectors did you go with? Zero temptation to try E85?

 

i'm not sure which ones they are. I honestly didn't know there were options. I did everything though Joe and he just said "You'll need 1000cc injectors for this"....and i said

"ok"

regarding E85....the temptation is there...but i promised wife this car wouldn't be another GTR type build (as she drives it probably more than i do). I don't want to crack the motor open...i want to be able to fill it up at a normal gas station...and i don't want to have to worry about the fuel issue if i take a long trip with it.

So yeah....while a set of rods, E85 and another 150whp would probably be nice....i'm content with the car as it sits. it's a nasty street car...drives pretty much like stock...and i can fill it at any gas station i want.

 

We used Injector Dynamics 1000cc injectors