cosmocrip

Does Anyone has installed the full package :
82mm TB, IPD plenum, CAtless headers, with a ECU tune or Cobb?

BGB Motorsports

Folks,

I wanted to update you on where I am on our R&D car's progress and what is on tap for January & February.

My Cargraphic "race manifolds" will arrive next week from Germany. My intentions were to dyno ONLY the race headers to see what sort of power I could make on the car WITHOUT anything else, drive the car for 500 miles to see what sort of CEL comes up and then put a tune on the car here on our dyno across town. At this point I am able to offer a tune from either supplier, both Cobb and my guys in Germany. Furthermore, we can do custom mapping for anyone that wants to make the trip to our shop next month.

Given that i keep getting sidetracked by work projects and as much as I want to do this all sequentially, I am going to throw the kitchen sink at this car with an attempt to exceed 475 crank hp. The mod list will be as follows and I will list it in stages but I am seriously going to try and possibly do this entire thing at once:

STAGE I
- K&N high flow 981 air filters
- PCNA 991 82mm throttle body
- IPD 991 Competition Plenum
- Cargraphic GT4 race manifolds
- Aasco 12 lb. single mass aluminum flywheel

STAGE II
- 991 GTS / X51 Power Kit
- 3.99L Stroker Conversion

It's my intention to try and get all of this on the car so i can get on track with it at the PCA 48 Hours of Sebring but i have literally less than 3 weeks. I know a fair amount of you guys are coming to that event and if you aren't, the car will live here at the shop so that anyone who happens to coincidentally have a business trip to Florida can stop by and test out the final product.

RealityGT

Right on!
-Sub'd FTW!

bhgt2

Go big or go home.. looking forward to this

realdrray

can't wait to see the dyno's on the stage 1, i'm close to finishin my break in and come spring i'll be ready for at least some headers more than likely i'll do the headers, plenum and tb, filters and cobb tune

needmoregarage

We'll be in your hood Thurs Jan 28 in the afternoon. Is that a good time to stop by? I'd like to see the cage installation on your car.

ChrisF

Mine with BGB bar might be in the shop even if his isn't

PS: John: Can't wait to see the car with all the goodies.

Ferrarisimo

Very interested to see if you can make the X51 fit.

RealityGT

It's already been done!

BRNGT4

The heads and cams yes but the manifold wont.

Ferrarisimo

Link?

Humilde

Very interested in stage 1

RealityGT

I stand corrected! Hopefully BGB can put that to rest,

Rick Deman has 4.0 kit going, but I was mistaken to think that he had also run with the Powerkit and Plenum..
https://rennlist.com/forums/gt4/9086...l#post12903657

s2ktaxi

Will you be trying to replicate a GT3 engine power profile including higher redline?

BGB Motorsports

We executed the 1st of 3 Power Kit 981 swaps in Feb 2014, complete with manifold and were the first ones worldwide to bring it to existence. Furthermore the Power Kit 991 manifold was in my 981 for over a year and will be going back in my GT4 along with the 3.99L crank / stroker conversion.

The kit offering is the same from either shop so...

While I hope to achieve in excess of 475 I do not want to increase RPM levels. I have always been concerned about harmonics at high RPMS and given the reduced rev limit of the factory GT3 Cup motors when revised to 3.99L, i see no reason to try and spin the car higher than stock. I actually want to come down maybe 200 more RPM until i get on the race track with the car and start exploring higher levels. The dyno results show that there is not much power to be gained above 7K BUT that config lacks the ported heads and factory Power Kit manifold which are worth their weight in gold when trying to achieve HP over 7K RPM. They are just what the doctor ordered to help cure the elusive "porsche dip" that every single flat 6 motor makes at 7K. At the end of the day all i care about is trying to deliver reliability and something that behaves like a car that came off the assembly line. I don't want to speak for anyone but i guarantee that none of you want some temperamental race motor type thing in your fresh street car. I want it to be just like our daily driven 3.8L 981 and 987 swaps.