Started a little earlier but the project is under way. I'm stuck between these 2 bpv. ATI's is 400 bucks for the race version and the Super Mondo if my eyes reading correct is 630+! I hear the regular Mondo by Vortech is better quality then ATI's race version but I haven't had seen a thread comparing the two. Mondo's is allegedly louder but ATI's has excellent quality behind it.

Here's a link for both if you are wondering what the Super Mondo looks like.
Super mondo http://www.capa.com.au/vortech_performance_bypass.htm
ATI race bpv (you'll have to scroll down a little to see the bpv)
http://www.ls1tech.com/forums/showthread.php?t=408740

So which one would you get and why? Thanks!

 

Damn.... I didn't realize the blow off valves were so expensive!

-B

 

The regular mondo valve is the one I'm upgrading to. You can get it at summit for about half the price of the ones your looking at.

I can't see buying a bypass valve with that much capacity. At 6000 rpm no matter what bypass valve you use you will still have some stalling when you close the throttle.

At idle with my P1SC and 12pd pulley the system doesn't even need a bypass.

The regular mondo is very large in size(There was a good picture here a few months ago) and it might be difficult to find engine compartment space for the Super.

 

No, if you have the correct bypass valve, you will not have any 'stalling'.

You'd change your opinion once you blow an intercooler up or brake a gearset in your blower by not running a by-pass valve with that much boost. Anything over 5 psi non-intercooled, and ALL intercooled systems need to have a bypass valve for those reasons.

 

the pressure has to be released....

 

What do you mean by "stalling"?

 

I was quoting 97WS6Pilot. I assume he was talking about surging.

 

The prices you see on capa.com.au are australian prices, the 649 would be $475 American. Those bypass valves are huge. I have the Vortech Mondo bypass valve and am having trouble figuring out where to put it.

I believe the two bypass valves are comparable in size and flow.

 

i just installed the vortech mondo on my car. had an obvious mounting issue(my fault) and blew the whole tube off that it was mounted on during the first time out. ran over it and jacked it up pretty good. remounted it with new vac port which it broke off and works great. it is a quality piece. i got the valve and flange for just under $300 shipped from vortech.

 

A picture for reference. The diameter of the Mondo is the same as the discharge of the T trim supercharger.

http://community.webshots.com/photo/...65156769LGcjpa

 

I think I'm going w/ the ATI one just based on price. I've heard good things about the mondo actually more about the mondo than any other BPV. I agree they are all big but I'll be mounting mine right before the TB. With the hood I have I'm not concerned with clearance.

 

I'm doing the same, but it'll be mounted sideways for hood clearance.

 

Should the bypass valve be mounted before or after the intercooler? Does it make any difference?

 

If I'm not mistaken it's before but I don't quote me on that.

 

Depends on how you run the system. If you vent to atmosphere (MAF has to be on the pressure side), then anywhere before the MAF. If you recirculate it (MAF on the intake side), then you can mount it just about anywhere.