Good day to all,

My current configuration is the following:

1. Stock 96 motor
2. S&S power tune headers with vance and hines slip ons
3. S&S stealth air cleaner
4. S&S 551 easy start cams
5. S&S Adjustable pushrods
6. Thundermax ecu

I am considering to go with a 107 kit in order to increase the performance a little bit, however I am not aware if I have to change also the stock 96 throttle body - 46mm to a stock 103 - 50mm or horsepower inc - 51mm or s&s - 52mm.
Assume that the injectors should be replaced as well.

I prefer low end torque.

Any advise will be helpful.

Thanks

 

Are you going to do any head work? If so get bigger TB if not the 46 might be ok.

 

If you go 107, I would ask the company you get parts from what they think.

In my opinion between a stock 50 mm or having your 07 modified by HPI. I would go with HPI.

 

HPI is a work of art, I was very impressed with the 55mm I put on my 120.

 

i went to a 103 and head work but kept the stock . my tuner had to change the injectors and showed me on the computer where the the stock injectors where maxing out.

tuner said the stock in my case would be fine .he did make some other comments and if i remember correctly maybe at hi rpm's could get louder sucking more air in or restrict at extreme rpm...but he would be the one to know and would have.

3 reasons I like about the stock at the time.save the $$$,save cruise control, and narrower.

 

If you modify the stock with HPI you keep cruise control