Before I did this post I did do a search on instructions for the Johnson Pump. I get my pump today and before I take it in for installation is there instructions posted so I can avoid issues the technicians my encounter?

My next question is about the pulley. 178mm or Code3? I haven't seen a clear debate on this yet where a winner is declared. Can we get one started?

Thanks.

 

I did the 181 and the Code 3, Code is what I have on it now and I am happy with the results, and I recommend it to you, Enjoy, Woody

 

waldig you used to have a 181 on and you took it off for a code 3? why would you do that?

 

After this fall there will enough information to better answer your question. Right now the 178mm pulley has put down the best numbers at the track, but this is because until recently it was the only pulley available. This fall alot of the guys with Code3 and other sized pulleys will be hitting the track with cooler weather. We should have hard evidence by then whether the code3 is just as good or better than a 178 and whether the 181 and 185 are any better than the 178. For now the 178 is king.

 

So far we have one Code 3 and 178mm.

Here is my next question: Which provides less risk to causing mechanical damage to the car?

 

So far the 178mm is the safest to date, but like I said before, the rest of the pulleys are fairly new to the market and haven't been tested as thoroughly as the 178. This is not to say the 178 is the best performing and safest (for now it is), just that its been out way longer than the others.

 

My plan in the next 2-3 months is to get the Code 3 pulley - you can always add the 178 to the Code 3, And the Code 3 is so much easier to install... I figure go with what's easiest and if you're still not happy - take it to the next leve.

 

I have the 181 and so far I am happy with the results.

 

im sure the code 3 pulley is easier to install but really the crank pulley kits are not that hard to do.I cant remember how long it took us to put on my 178 but it wasnt long and we had no problems at all with the install

 

The price and ease of installation and the fact the code3 pulley gives you the performance of the 178mm crank pulley pretty much tells you that is the way to go.

 

Define Winner?

Reliability - stay stock; although the stock pulley's have a high mortality rate due to the plastic dampner shredding.

Warranty issue - Stay stock or go with the Code3 if you think your going to fool the dealer. I would worry about a mechanic working on my SRT6 that is easily fooled.

Performance / Cost - The 185mm provides the biggest boost increase and costs about the same as the 178mm or 181mm.. Install effort is about the same.