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Sprint Booster and 2014 R Spec

K

kw88keys

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Pardon the duplicate post but I did not receive any responses so trying one more time. Thanks.

I recently traded my 2011 4.6 for the 2014 5.0 R Spec. All debating of the Sprint Booster aside*, has anyone here installed the Sprint Booster on the 2014?
I am particularly concerned about any adverse effects it may have with the computer in relation to the 8 speed transmission or engine performance. Of course if the wiring harness has changed from the 2011 to the 2014, installation is not an option. The Sprint Booster web page list only the 2009-2012 as viable models for installation.

* Yes, I know, the SB is often considered a placebo at best, but I did find a noticeable and preferred quickness to the acceleration and downshifts. I am aware that it just boosts the signal thus lessening the accelerator travel distance for the same results as pressing the pedal further, but it just feels better.
 
I had a Sprint Booster on my '09 and '11 4.6 which I liked a lot.
When I bought my '12 RSpec I tried the fitment taking the
Sprint Booster from my '11. It "fits" in that the plug connection is exactly the same. BUT, But..... Sprint Booster does not provide/endorse an application for the '12+ eight speed transmission. Perhaps Sprint Booster knows something? Whatever, I decided not to try the Sprint Booster on my '12 eight speed; and sold my Sprint Booster to a 4.6 six speed owner.
I had severe transmission problems with my '12 RSpec. Replaced under warranty the entire transmission at 10K, attempted replacement with a warranty remanufactured transmission at 35K, which couldn't accept downloads, and finally a truly brand new transmission. I think the eight speed is a weak transmission better suited to the 3.8 than the RSpec. The RSpec has huge torque management/reduction in lower gears, I think to protect the transmission. The 3.8 has much less, so I bought a '13 3.8, which I like a lot.
 
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Thanks for the replies. I did check/search previous posts but everything I found, including the link from NXSNEXT, had comments that all predated the 2014 model. I called Sprintbooster to see if they could provide more info and the rep I discussed this with stated that 2012-2014 models were not listed because they were not tested - not because it was tested and failed for these model years. I gathered that if the SB fit into the housing, there would probably be not problem. However, I was hoping someone on the forum had definite experience. Guess I may be the first. Thanks again.
 
Black genesis badges emblems letters lettering chrome delete
As an update to this, I installed the SB that I had previously on my 2011 4.6 onto my 2014 5.0 RSpec today (it is the model made for the automatic - not the manual). The fittings mate as they should and I perceived the same enhanced quickness to the accelerator that I previously had on the 2011 4.6. For those that prefer the SB influence, it seems to work fine on the 2014 RSpec. I will update if I run into any surprises.
 
Any updates on this? Still working well?
 
jfrazer77 said:
Any updates on this? Still working well?
Click to expand...

I still have the SB installed and have had no problems. My original intent for installing was to reduce the time lag on the downshifts. However, there is a very simple modification to the flapper door under the air filter that has a very significant positive effect on this. Had I done this modification first, I have my doubts as to whether I would have purchased the SB. Here is the thread on the flapper door modification.

http://genesisowners.com/hyundai-genesis-forum/showthread.php?t=14917

Hope this helps. This car is an absolute blast to drive now! Power AND responsiveness!
 
kw88keys said:
I still have the SB installed and have had no problems. My original intent for installing was to reduce the time lag on the downshifts. However, there is a very simple modification to the flapper door under the air filter that has a very significant positive effect on this. Had I done this modification first, I have my doubts as to whether I would have purchased the SB. Here is the thread on the flapper door modification.



http://genesisowners.com/hyundai-genesis-forum/showthread.php?t=14917



Hope this helps. This car is an absolute blast to drive now! Power AND responsiveness!
Click to expand...


^ +1.
 
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