The AMS Genesis coupe is HERE!!! Let the modding BEGIN!!!

[GenX]

I got into the Coupe's engine compartment a bit today. Steve and Rich took a lot of pictures that Rich will be editing and posting up tomorrow. LOTS of interesting things under the hood.

Fuel system is a returnless style but has a removable plug on the end that could possibly make it adaptable to a return style system with a boost compensating fuel pressure regulator.

The intake manifold is quite odd. It appears that there is a vacuum reservoir built into it.

The BOV is installed in the compressor housing (like an SRT-4) and is connected to the vac reservoir which allows the ECU to open it even under boost. When we had the car on the dyno Sunday, we found the boost limit at around 18.5 psi but it was not a hard cut like we normally see (when fuel injectors are shut off) but rather a soft cut like the BOV was being opened. Our engineering department took measurements for a CNC block off plate!!

The intake tube has a large restrictive metal muffler installed in the middle of it. If I remember correctly, it necks the inlet down to around 2" in that spot. The good thing is that it is easily replaced with a piece of tubing. I am not sure if you will see HP gains from deleting this on a stock car, but it will eventually be a restriction as mods progress. The intake also has a large capped off bung on it that looks as if it was designed for a recirculating BOV. I have already noticed oil in the intake tube. I have 200 miles on the car. A catch can for the PCV system will certainly be needed to prevent oil from coating the inside of the IC piping and intercooler.

The air filter box and ducting to it seem to be very nice pieces. Air enters the upper grill opening in the bumper and flows through slots on the radiator block off plate to the inlet of the snorkel for the air box. We will do some testing, but I think that the factory setup should be just fine for most applications.

The compressor wheel on the turbo is actually bigger than I had anticipated. It will be interesting to see what the turbine side looks like. It will also be interesting to see what kind of HP we can get out of the factory turbo before we upgrade it.

Intercooler piping is thick wall aluminum. ID is approximately 1 3/4" on the hot side pipe I measured. An upgrade will be needed here for sure.

I am sure there are other things I am forgetting but I will have to review the pictures tomorrow.

 

[Poopsicle]

How come you guys don't mention anything about this Genesis Coupe on your webpage?

 

[Prosport Gauges]

Here's a nice carbon fiber catch can you may want to consider:

 

[GenX]

Some pictures of what I found in my last exploration into the Coupe.

This is a tow hook I found in the back next to the jack. It is used in the front of the Coupe by removing the cap in the front bumper and screwing it into the core support. I can see people painting it red like the BMW guys do and pimping it all the time.

This vibration dampener is located on the back of the K member. Should be an easy 2 or 3 lbs you can shed at the expense of a little vibration.

Some better quality pictures of the intercooler.

This is the intake silencer. As you can see from the pictures, it necks down the intake tube to around 2". It weighs over half a pound too... heavy stainless steel.

Picture of the turbo and manifold without the heat shields, intake tube or hot side pipe. Notice that the wastegate actuator is adjustable!!!

This is the hot side pipe. The OD is around 2" but it is very thick wall aluminum so the ID necks down to around 1 3/4". That is quite small.

That is the pictures for today. I did not have a chance to get the exhaust off today to weigh it. I will try to get to that tomorrow.

 

[GenX]

I got the car on the dyno yesterday and tested a whole bunch of different things.

Back to back 87 to 93.

93 octane after resetting the ECU to wipe out any possible long term knock corrections.

Prototype AMS intake silencer delete.

Prototype AMS test pipe to delete the secondary cat.

Prototype AMS exhaust system.

Chris will be back from a tuning trip tomorrow and I am hoping he can analyze the data I collected and post up charts.

To be honest, results were underwhelming. There were some gains, but not much at factory boost levels. I am pretty sure that once we address all the corks in the system, we will get a better idea of what each part does for the car.

 

[Fast01Rio]

some gains? what is some gains mean? is the exhaust holding the car back that bad now?

 

[GenX]

some gains? what is some gains mean? is the exhaust holding the car back that bad now?

I tested the prototype exhaust and that was not the cork. I will fab up a down pipe and mid pipe next and test them.

 

[Prosport Gauges]

Id like to see some dynos/tuning after all this stuff is on

 

[hizzay]

wow you guys are making great strides the for genesis coupe. how much power do you think can be made with basic bolt ons? and wow that intercooler really is tiny...

 

[GenX]

I got an intercooler core sourced up today and slated some time tomorrow evening to get working on end tanks and mounting. I will also be working on IC piping, down pipe and mid pipe. Hopefully get a good portion done tomorrow night and possibly have dyno results by this weekend.

I am super anxious to see where the cork in the system is.

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[Fast01Rio]

wow now i can't wait to see the results on this one..good luck

 

[BlackOne]

Sweet, cant wait to see more results.

 

[Chris@AMS]

So, I finally had time to dissect some of the data Ivan collected while I was away in Texas. Definitely some very interesting finds, but no huge power gains

The fist thing Ivan did we re-baseline the car. In a effor to make sure our test results are always 100% accurate we always test, and retest our results to make sure that you can get the same power out of your car! Next on the to-do list was to put 93oct in the tank and run the car on the dyno again to see if it would learn itself some more power. On those 4 pulls there was no change.

Then Ivan decided to reset the ECU (disconnect the battery). After doing 4 more pulls, this end result was this:

It gained about 10whp from about 5500 RPMS to redline. There was no real, discernible difference other than that.

The next 3 three things he did dyno tests for are delete the silencer, deleted the 2nd catalytic converter with a test pipe in its place, and installed a prototype cat-back exhaust system. The runs are pictured below. As you can see there isn't really any difference between the runs. The difference in the peak numbers can be attributed to the standard variance that you will see from run to run anyways.

So far, our best bet has been to throw a boost controller on it and turn up the boost! We will be doing some more interesting stuff very shortly and we should have some very exciting things to show you guys in the near future!

-Chris

 

[Fast01Rio]

why is boost so low compared to stock 1st run?

 

[Chris@AMS]

It isn't. If you look closely, there are spikes in the curve. That number only reports the highest boost level recorded, which can be somewhat deceiving.

 

[Fast01Rio]

ahhh i was thinking that the lower boost but making same amount of power was a good indication, but oh well

 

[BlackOne]

Has there been better gains with more boost + exhaust?

 

[GenX]

Has there been better gains with more boost + exhaust?

I have not had a chance to test that yet, but I think that with more boost, gains from things such as cat back, cat delete, intake, etc will be noticeable.

I am trying to systematically change out a part at a time at stock boost levels to see what each one does. After those tests, then its time to throw parts "packages" on the car.

 

[GenX]

I am so tired yet so excited right now... All the hard work we have been putting in on the Gen Coupe is paying off.

For those that don't know, the Genesis Coupe could not have been released at a worse time for us at AMS. We are right in the middle of several major builds. We have the drag car clone build, the Blue Deamon TA / street car build, the TA Evo X in 10 weeks build and of course our own TA-X build all going on. In addition to prototyping the Ralliart parts, BMW 1/3/535i parts, the R35 GTR parts and keeping up on all of our already released parts. To say we are swamped is an understatement.

Anyway.... here is the kicker.... NONE of the Genesis Coupe R&D or testing has been done during normal business hours. To help keep things on schedule, we have been doing everything after hours and on weekends. I would like to personally thank Tony, Greg and Nick for all spending many many hours after work and multiple 12+ hour days on the weekend helping this get done.

Well, all the efforts are paying off. We just got the car off the dyno and are VERY pleased with the results. We have eliminated the "corks" in the system and found the HP we knew was there.

Today we tested:

AMS prototype down pipe / mid pipe
AMS prototype secondary cat delete
AMS prototype cat back exhaust
AMS prototype intake silencer delete
AMS prototype front mount intercooler
AMS prototype intercooler piping kit
AMS manual boost controller

Results to be posted very soon!!!!

 

[GenX]

One more pic to wet your appetite....

I will have more details about this on Monday!!!