UPDATE:

After a few dyno pulls, we're seeing gains of 20whp and much more torque! Dyno sheet and video will be posted up tomorrow.

Stay tuned!

 

Ok, the moment you've all been waiting for. Before reviewing the dynos I would like to review my testing methodology so that everyone is on the same page with respect to the gains achieved.

At Forged Performance, we take delta testing very seriously. I personally handle all aspects of the process to ensure a true and accurate comparison. Results can easily, yet often, become unintentionally skewed in either direction. But our objective is to give you all a true no-BS assessment of any part that we test.

That said, here is our testing methodology.

1) E85 Fuel and Stock Engine (Baseline was 196whp on our dyno)
2) Boost pressure reduced to 23psi to insure a very stable AF ratio while not overwhelming our single fuel pump.
3) Same day test 6 hours apart and vehicle was not unstrapped or moved from the dyno. We had to do quite a bit of modification to make this prototype fit, but of course production versions will be bolt on like all AMS products.
4) Ambient temp was within 3 degrees F variation in our shop, through the dyno testing process.
5) Ramp rate (load on the rollers) was reduced to 140 in order to reduce the effects of heat soak, which can mislead the results.
4) Dyno Fan running for all runs.
5) 2 second "dwell" or hold time before releasing the dyno. For reference, the dwell time can alter the boost ramp up as it pre-heats the turbo.
6) The lowest and highest dyno numbers are rejected for both plenums as well as any unusually high or low numbers.
7) AF and boost was equalized within .2 psi and .2 AF ratio points for a true apples to apples comparison of the gains. Boost curve is posted for reference so there is no dispute on boost levels run.

That said, the results were outstanding at such low boost pressure. We achieved a peak of 20whp and 28lb/ft trq. More impressively, there was virtually no loss of power or trq anywhere on the curve, and many areas showed gains of 30whp and 40lb/ft! So in addition to a notable peak power improvement, we saw a tremendous improvement in area under the curve throughout the power band.

So far, we are very pleased with the AMS Protoype STi plenum. We feel the gains will be even more impressive as we raise the boost further after our FP S2 stroker race engine goes in. We will be working with AMS closely on some additional changes and modifications to make this plenum the best out there.

And the best part......we have a video coming soon!

 

Any update on the STI?

 

This past weekend, we decided to bring the Forged Performance 2011 STi to the annual gathering of Nissan's called ZDAYZ. This four day event began with the 4th Annual Top Dawg Airstrip Shootout that we sponsor each year at the Hendersonville Airport. Running E85 and 23psi of boost (we bought 200 gallons to feed our STi and GT-R), we made dozens of 40-140mph passes down the airstrip. The STi never missed a beat and performed flawless and still on the stock block.

After Thursday's event, we headed to Deals Gap and enjoyed the next three days hurting many a sport bike owner's feelings. With near infinite amounts of grip, phenomenal brakes, and terrific power the STi was a dream to drive through the twisty stuff.

 

Found a clip of your baby when testing the manifold..
http://www.youtube.com/watch?v=ke11z9iyehw

When will the engine build take place?

 

Today we received the heads that will sit atop the Manely 2.6L stroker in our 2011 STI. The heads have been reworked with CNC porting, Manely oversized valves, Manely Beehive springs and retainers.

 

MOAR MOAR MOAR hahahah this build is great

 

Engine assembly has begun. More pics shortly.

 

Hey everyone. Just wanted to post a couple of teaser pics. We will be posting more pics of the assembly process soon! Thanks for your patience

 

I am excited to see this motor build.
I am wrestling with the idea of 10 to 1 compression piston and a set of GSC stage 1 cams with a small upgraded turbo for daily driving duties.
I am hoping that combination along with a full exhaust, FMIC, pump, 1000cc injectors, intake will be a good combination.
Customed tuned of course.

Is there any release date on the AMS intake manifold yet?

 

We just as excited as you are to see this go though. With the amount of customer projects going on it is difficult to work on the shop cars.

There isn't an official release date yet, but we are awaiting one. We were happy with the results of the prototype manifold and look forward to its release.

 

I have the exact same colour and model of STI and find the paint full of swirls as well. Do you know what the 2 stage paint detail process consisted of. I would gladly take on this project myself if I knew what to do to correct it.

 

this thread needs an update from the builder.....

 

UPDATE? please?

 

Update??