We are steadily getting busier and busier in the GT-R world and things are going well here for sure.
We had a local Ohio customer contact us who use to own an EVO, Brian, and ask about getting his GT-R in for some upgrades. The car was out of commission due to a trans failure and needed that fixed too.
He had done some research and spoke with Sean Ivey, who we use for our trans builds here not he GT-R's. Sean contacted me to let me know he didn't think it was going to need an upgrade but just needed some TSB work done. Keep in mind this is a shop doing transmissions that was NOT trying to get $9000 from a customer who didn't really need to spend it, I like dealing with honest people.
Anyway, the car comes in Daniel pulls the trans apart, sure enough the problems are what Sean suggested, buttoned the trans back up, did a relearn and off the car went, perfect shifts and a large amount of money saved.
We were able to move onto the mods. The car has some type of ill fitting catback on it already, terrible fitment and it's burning the rear bumper up, it's also pretty loud. It also had a catless mid pipe on it, mid pipe design and entry angle into the merge is pretty decent.
Brian brought his own catless downpipes, if I had to guess I'd say ebay or built overseas just from the looks, not bad a bad thing and actually is an exact "copy" of how we build ours. I actually thought someone had polished our parts. There was also a never installed Cobb AP V2.
From there we supplied:
Buschur Racing Street (BR) FMIC
BR upper and lower i/c pipes powder coated in wrinkle black
BR Speed density kit
BR oil catch can kit
BR coolant over flow can
BR ported upper/lower intake manifold
2014 turbo inlets
BR twin 400 pumps
BR Flex Fuel kit
BR Cobb Pro Tuned
The first pull on the dyno the car put down 520'ish whp at 12 psi on the first initial tune I put together for it. The power rose every single pull until I finished it up.
The dyno sheet below is the highest hp/torque GT-R we've done to date on the stock turbo and I didn't lean on it at all. This was the E70 tune, AFR's in the 11.7 range, left boost low with a peak of 20.3 and timing was also left low.
The car is quite amazing and with 595 whp and 600 ft lbs should be an EASY 9 second GT-R on a good set of tires. For reference my car ran 10.25 with 525 whp.
One other thing I want to add to this for those of you unfamiliar with our dyno and how it reads. When I use our dyno it is set to factory calibrations and reads low. When other shops have used this dyno for GTR tuning they have manipulated the numbers to sell parts and made it read like a Dynojet (and higher at times). So for reference, the dyno reads 13% less than a Dynojet, verified many times. To put that into perspective these numbers on a Dynojet AWD dyno would be 672 whp and 678 ft lbs of torque. Pretty incredible.