Negative boost pressure on dakota dash

[billygeg]

Just installed my dakota and got the boost running by installing a new vacuum block and putting the sender in the 1/8 NPT thread with teflon tape...I havent driven the car yet as the weather here is horrible..So I just had the car idling in my garage...I am reading like -17 on the boost gauge...Im sure I have everything wired right..Does this sound normal? As I hit the gas with the car idling it goes down toward 0....

 

[DR BOOST]

can makes vacuum at idle, which is being read as negative psi on the dash.

 

[Chuck Leeper]

can makes vacuum at idle, which is being read as negative psi on the dash.

Scary, ain't it!!

 

[DR BOOST]

i heard that if you have too much negative psi, you can suck the turbo into the intercooler!

 

[buddy]

If negative boost is vacuum, is negative vacuum positive boost.

 

[Chuck Leeper]

i heard that if you have too much negative psi, you can suck the turbo into the intercooler!

I've not seen it get that bad.......However, I have seen the down pipe sucked shut.

 

[Gene Van Horn]

I new a woman like that once. Hahaahhaahahah

 

[billygeg]

I new a woman like that once. Hahaahhaahahah

Lmfao! So what you guys are telling me is that its normal I guess? Also the car is basically all stock with a stock turbo..What is a bood number to set the high boost warning at?

 

[TURBOELKY]

Take a look at a vacuum/boost gauge. Before zero is vacuum/negative pressure, past zero is boost. Your dash is correct. As far as boost warning, what's that!

 

[billygeg]

The dash comes with warning indicators that you set which warns you if you go over the boost setting you set into the dash

 

[psycho6cyl]

If you're running 93 octane I'd strat w 15lbs that's only if you have a way to monitor knock and 02s..

 

[billygeg]

If you're running 93 octane I'd strat w 15lbs that's only if you have a way to monitor knock and 02s..

I have a scanmaster so I am able to monitor them if I remember how! I started a 85 GN project car I had it in for years then I sold that because it was a little to much to handle...I just got the 87 early this year..So its been a long time..I dont even know what the numbers mean anymore! I gotta check the scanmaster manual if I can find it...

 

[buddy]

I don't think your scan master can display boost.

 

[psycho6cyl]

I have a scanmaster so I am able to monitor them if I remember how! I started a 85 GN project car I had it in for years then I sold that because it was a little to much to handle...I just got the 87 early this year..So its been a long time..I dont even know what the numbers mean anymore! I gotta check the scanmaster manual if I can find it...

Start here

http://ihadav8.com/forum/VortexBuicks/

 

[earlbrown]

I don't think your scan master can display boost.

it can but you have to have a powerlogger.