Installed 1g bov

[danny_l_2005]

Ok I finally got a 1g bov and now im having problems with boost spikes. I used to have my stock 2g bov which never gave me huge boost spikes like the 1g bov. Well i have the boost controller set at 10psi but when i go WOT it spikes at 15 then back to 10. I would like to set my boost at 14 but im afraid that i will spike to >17psi. Can someone tell me why im getting boost spikes now with the 1g bov? thanks

 

[2g_spyderturbo]

get a bigger turbo if you want it to go away otherwise its normal for that t2small

 

[jim97gst]

It's most likely not a problem. I have a 1G BOV and no aftermarket boost controller (can't use one in ESP in autocross). Before the 1G BOV, boost was around 14-15. After, it is around 15-16, and spikes to around 20. I've logged it with a pocketlogger and dsmlink, and everything is fine. It's been like this for 3 years.

I assume your spike is just when you first hit boost, at low RPMs like mine. The engine doesn't need that much fuel at low RPMs, even with the short boost spike.

Get a logger of some sort and see for yourself.

 

[danny_l_2005]

Well can someone tell why changing my bov from a 2gen to a 1st gen will make boostspikes?

 

[Mitchel63]

1G valve will hold boost, the 2G will not.....instead of spiking it just leaked out.

 

[CanadianTSi]

Your MBC is the cause of the actual spike, well that and the T-25.

Turn it up to 14-15 and see what happens, even if it does spike for just a second it's no big deal.

 

[flinguist]

I had the same problem until I got my boost controller installed correctly.

 

[XxSiRhCy6PxX]

when i changed my 2g bov to 1g bov it spiked to 20 aswell. i found out that the turbo acuator shaft thingy was rubbing on he heat shield. i bent it back a lil and voala. solved my problem. you can try checking if the shaft moves back and forth freely

 

[GSX0TIC]

I had a 1g BOV before and after my hallman classic MBC and i never had any spike issues...on t25 btw....