I was wondering what kind of power increase would be had by upgradeing from the 112 to the 122. Like how much more rear wheel power would the 122 make at 8-10 lbs over the 112?

 

I would think the same. The only difference would be less heat and as a result less kr and more timing but the 122 can run more boost whereas the 112 is limited to about 10lbs.


See what I've learned in the past year?

 

Any idea what the 122 is able to make for boost? I want to add it to the motor in my sig. I sold my 112 today and was thinking about replaceing it with the 122.

 

The 122 from what I understand can run up to around 15 psi of boost on a built engine. The benefit will be the lower intake air temp as stated above. At lower boost levels the 122 will make the same as a 112, that is until the 112 runs out of lung. Kenny Duttweiler made 740 HP with a 122 on a 402 from what I remember.

 

What poor sap bought that all used up Blower, I hope you gave him a good deal... lol

Bill

 

TURBO TURBO TURBO!!!
You need to put a turbo on that nice engine Rex is building you!

 

At the same boost level I'd guess that the hp level would be around the same, but your quarter mile times should be better because the IAT's should be cooler through the whole quarter.

 

You know your probaily right. I talked to Rex about it yesterday. I have thought about it and even come close to doing so. Although not being firmiliar with them and likeing a roots blower I think it'll be the 122. Wish that TVS 1900 was ready to go. I'll never be able to keep up with that monster your building anyway!

 

Even if boost levels were the same the 122 is bigger. So therefore would it have a larger volume of air and creat more power? I think I can make more boost with that blower where the 112 would run out so that will probialy be the route I take any how.

 

From what I have been told there is about a 50 h.p. difference between the two blowers. I have only been told that, I did not have a 112, I went straight for the 122. You may hold up and wait a few more months for the TVS.