RX7Club.com - Mazda RX7 Forum

RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)
-   3rd Generation Specific (1993-2002) (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/)
-   -   Another one of those BOOST PROBLEM threads (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/another-one-those-boost-problem-threads-515105/)

DaveW Mar 5, 2006 05:28 PM

That vacuum hard line is only used on automatic trans cars.

*RX007* Mar 5, 2006 05:47 PM

ok thanks! oh ya that was the problem!!!! so its fixed now i believe. i took it for a test drive and primary hit at 11 psi secondary spiked at 13 psi :( thats way too much! but im glad its actualy working now!!! thanks so much for ur help! so much more power! lol. now i need to invest in a mbc so i really dont need to detonate my engine. do u have a link of a write up for a home depo mbc by chance? thanx

DaveW Mar 5, 2006 05:57 PM

Fabulous!!! Glad you found the problem!!!

Ball-spring MBC's are the way to go. there are several threads on the "Damian-style" MBC setup (Damian Dela Huerta was the first to actually post about doing this style). In short, this uses two ball-spring MBC's in place of the pills, and the PC and WG actuator exit hoses are plugged. This can also be done with just one ball-spring MBC tee'd to both actuators. The only downside of using just one MBC is that both the primary and secondary boost will be exactly the same. I used two because I wanted independent control of the PC and WG so that I could run an 11-9-10 boost pattern.

Here's alink to how to make one (I used the same idea with a few alterations): http://www.geocities.com/chmwatson/FAQs/mbc.html

My mods are in my signature.

*RX007* Mar 5, 2006 06:07 PM

awsome, so u can just buy these at home depo?

DaveW Mar 5, 2006 06:12 PM

NAH - that's just a way to describe homemade - see my previous (now edited) post.

*RX007* Mar 5, 2006 06:21 PM

great thanks! now thats my next project ;)

DaveW Mar 5, 2006 06:23 PM

You're welcome. Glad I could help!


All times are GMT -5. The time now is 10:33 AM.


© 2026 MH Sub I, LLC dba Internet Brands