well i got the boost controller working was wired to the wrong pin, any ways now i can set my controller to open loop and set her up for at 58 so it looks like this pic
so it will boost nicely but if i hold it down it loses boost with the controller set to 58 i will hit 13psi just where i want it.
but once i go past 6000 rpm it drops fast to 10-7psi, not matter how much extra i tell the controller to keep boosting she wont, if i make it hit 15 psi before it starts to drop it still dose it... i tightened up my blow off valve and still same thing, added fuel, still no go the best i can do is keep shifting and watching my boost pressures once it hits 10psi i just shift to keep it high is this normal or is my waste gate just not able to hold on to anything more then the 13 psi for 3 seconds then it just drops down to 7psi ish???

 

ms2 or ms1?

 

sry ms2 V3 2.1.0, i was reading some thing you toled me the other day the lower the #'s the more boost it should make if not i need to use invert ??

 

your sig says you have the stock turbo. therefore what you are encountering is to be expected. it is a mechanical limitation of the factory turbo

 

Ic its odd its letting boost 25psi and will keep holding this range as long as I keep rpm low and keep shifting at 6k

 

What you are describing is normal with the stock turbo on stock ports, and worse with a street ported engine. It just can't flow enough air.

Now, DO NOT run the stock turbo at 25 PSI unless you want it to only last a few minutes. 14 PSI is the limit and you will probably find you don't make much more power at 14 than at 12.

 

true i did notice that 12-13 psi seamed to be the hardest pull and anything more was no better, well looks like its what i got thanks for info.

time to start saving for a bigger turbo

 

how the hell did you hit 25 psi on the stocker? I hope you have enough fuel. Its all hot air over 12ish psi

 

which boost controller are you using just wondering? is it this one by chance?

http://www.diyautotune.com/catalog/e...kit-p-285.html

 

im using stock injectors and a 3" FMIC the size of the rad 2" think from an 88 volvo temps dont get much hotter then 40C

i just seen it hit 25 then i pulled off quick i know i hurting it


yes it is the one its some what loud so i would keep it under the hood lol,
im thinking of installing a shut off switch to keep the stock boost on it then i can turn it on with a switch to get the extra kick i need/want at time