Author Topic: Another budget turbo build. (Read 67394 times)

stan1221 · « **Reply #75 on:** November 28, 2009, 09:35:35 AM »

what is ICV - interval control valve? what is that? where it is located?

kevins08 · « **Reply #76 on:** November 28, 2009, 02:04:04 PM »

idle control valve

stan1221 · « **Reply #77 on:** November 28, 2009, 03:41:50 PM »

Agwy where did you put your battery?

naika · « **Reply #78 on:** November 29, 2009, 03:27:28 AM »

You can relocate the battery in the trunk, using stuff from a 325, that gives much more space under the hood

stan1221 · « **Reply #79 on:** November 29, 2009, 07:19:22 AM »

that's the point - i don't want to move battery... so the question is - can i use m50 manifold to made bottom turbo? not to move coils

naika · « **Reply #80 on:** November 30, 2009, 04:17:35 AM »

You should be able to bottom mount using an M50 manifold, but you'd need to test fit it.

Uglybob · « **Reply #81 on:** December 07, 2009, 09:17:02 AM »

Damnit. Just when I figured, "Hey, I'll just daily drive the new, pretty 318iS and leave it alone..." - Now I have to see what I can round up for yonder 6-7 psi if people are pulling around 205whp with little boost and basic engine management.

AcSchnitzer318is · « **Reply #82 on:** December 08, 2009, 11:59:01 AM »

^205whp will require 8-10psi. 180whp is 6 or 7psi. Just got all the parts I needed for boost control and 46lb injectors.... will let you know how many hp on 12psi

Awgy · « **Reply #83 on:** December 10, 2009, 12:55:26 PM »

Quote from: AcSchnitzer318is;82633

^205whp will require 8-10psi. 180whp is 6 or 7psi. Just got all the parts I needed for boost control and 46lb injectors.... will let you know how many hp on 12psi

Sweet!

I just made my own manual boost controller from ACE. Im running 8.5lbs all day with no problems. 9.5lbs gave me some knocking so looks this is it until a new headgasket.

AcSchnitzer318is · « **Reply #84 on:** December 12, 2009, 10:15:14 PM »

Are you still on stock ECU and adjustable FPR? I had it run at 12lbs before without any knocking (up to 4000rpm, then ran out of fuel). But that's with the MS.

I'm going to the track tomorrow on 8+psi... will let you know how I fare. Haven't gotten the boost controller in yet... but the 46lb injectors are working perfectly.

naika · « **Reply #85 on:** December 15, 2009, 04:35:09 PM »

Isn't 46lbs injectors overkill?
When you mention a boost controler, you mean some sort of a valve inside the car to lower boost when cruising?
At 12psi, are you running on stock HG? simply with a good tuning? that's pretty good

I thought 9 psi was the line not to cross, but maybe the MS is helping a bit

Boosted E30 · « **Reply #86 on:** December 15, 2009, 07:42:19 PM »

46lbs injectors will be good up to 14psi thats what im at right now probably 260whp

AcSchnitzer318is · « **Reply #87 on:** December 18, 2009, 04:40:14 PM »

Quote from: naika;83060

Isn't 46lbs injectors overkill?
When you mention a boost controler, you mean some sort of a valve inside the car to lower boost when cruising?
At 12psi, are you running on stock HG? simply with a good tuning? that's pretty good
I thought 9 psi was the line not to cross, but maybe the MS is helping a bit

46lbs as boostede30 says is good for my boost level. With the MS in there I still get decent mileage as well. LOL on my last trip to Houston I got close to 40mpg, better than before the turbo.

The boost controller is a solenoid that increases the boost and stabilizes it by limiting the pressure your wastegate actuator sees. For example I have my actuator set to 7psi... if I set the controller to 12psi it will make the pressure the actuator sees at 12psi equal to that of what it used to see before the controller was put in (7psi). There are manual ones and electric ones... you can even control it with megasquirt, which I am trying to work out now.

I am running stock head gasket. With the boost controller I am going to do 12psi up to 5000rpms and then drop down to 10psi to redline in an attempt to have the head gasket last longer. But I think it's only a matter of time before I have to do a new one with o ring'd head and ARP studs.

naika · « **Reply #88 on:** December 19, 2009, 08:36:26 PM »

Thanks for the explanations, I'll check your thread if you have any pics of that

Question, I need to get spark plugs and oil for my turbo M42, what do you guys use?

AcSchnitzer318is · « **Reply #89 on:** December 20, 2009, 10:17:46 AM »

1 degree colder NGK spark plugs, and mobil 1 20w50 for the oil. Has to be thicker to cope with the temps of the turbo. I was using 10w30 but the turbo was thinning it too much for my liking.