Author Topic: For those that have gone turbo..... (Read 8282 times)

Ramblin MAn · « **on:** October 01, 2006, 07:59:23 PM »

For those that have added a turbo after the fact, what did you do about fuel and the ecu? Chip?

sheepdog · « **Reply #1 on:** October 01, 2006, 10:30:18 PM »

From what I have seen and read, up to about 6 pounds of boost or so you should be ok.

Any more and you will need something more. Megasquirt would be my recomendation.

Gunni · « **Reply #2 on:** October 02, 2006, 09:31:33 AM »

No matter what the boost is you need something to add more fuel,
at 6psi a FMU does the trick, as most often nothing needs to be done about timing, as the IAT rises and the ignition is backed off anyway,
after that a standalone is definitly the way do do it

sheepdog · « **Reply #3 on:** October 02, 2006, 11:44:35 AM »

Downing Atlanta is now using a boost sensitive fuel pressure regulator to go up to 7psi. No chip or injectors.

An increase in pressure and/or larger injectors could likely do the same thing.

asubimmer · « **Reply #4 on:** October 02, 2006, 12:05:02 PM »

yeah I think I am going to try just the 24# injectors before I put my FMU on. Hopefully I won't even need the FMU. We'll see

nickmpower · « **Reply #5 on:** October 02, 2006, 02:03:52 PM »

Quote from: asubimmer

yeah I think I am going to try just the 24# injectors before I put my FMU on. Hopefully I won't even need the FMU. We'll see

when your off boost its going to be way to rich

thumper3ld · « **Reply #6 on:** October 02, 2006, 02:53:55 PM »

Quote from: nickmpower

when your off boost its going to be way to rich

Easily solved by never going off boost. :p

asubimmer · « **Reply #7 on:** October 02, 2006, 03:38:15 PM »

Quote from: thumper3ld

Easily solved by never going off boost. :p

you are a smart man

its going to be fine

vatos_p · « **Reply #8 on:** December 06, 2006, 01:13:17 AM »

if you do it , do it right , 1 bar of pressure in an m42 engine with 8,5:1 , forged pistons and a parralel ecu , 4 extra injectors and you will playing with 300++ hp...and 32++ kg of torque...

isn't that nice.........................................

///Motorsport · « **Reply #9 on:** February 02, 2007, 03:54:41 AM »

Okay, so I have a question along the lines of the OP, maybe we can get a list of parts that are needed for going turbo?

Turbo- GT28RS, etc.. What gives the best tuned powerband?
Megasquirt- What does this let me use for ECU or whatever, how high can I rev? I am running a DINAN ebay chip now.
(Will this let me not run an IC? How expensive is adding an IC? I think I would want one if going for lots of power?)
Walbro FP?
Injectors- Which are best? (what does 4 extra entail?)
Oil Cooler?
Some sort of intake- bored TB, even ITB?
Manifold- 666 or something, or custom if i can.

How much psi can I run? 1 bar would be nice!
ANy other info on things I will need? Oil temp/pres. and boost gauges..tial wastegate...

Alpine003 · « **Reply #10 on:** February 02, 2007, 01:04:44 PM »

Quote from: asubimmer;12577

yeah I think I am going to try just the 24# injectors before I put my FMU on. Hopefully I won't even need the FMU. We'll see

Like someone said, you'll be running rich if you go this route. A cost effective work around would be to use something like the Apex-I AFC to trim your fuel values for better off-boost response and idle.

asubimmer · « **Reply #11 on:** February 02, 2007, 05:08:16 PM »

well I sold the fmu and decided to just go ahead and run MS. I figured that it would just be better in the long run.

silverblades181 · « **Reply #12 on:** February 02, 2007, 08:15:47 PM »

Quote from: vatos_p;15079

if you do it , do it right , 1 bar of pressure in an m42 engine with 8,5:1 , forged pistons and a parralel ecu , 4 extra injectors and you will playing with 300++ hp...and 32++ kg of torque...

isn't that nice.........................................

300hp with 15lbs of boost?

asubimmer · « **Reply #13 on:** February 03, 2007, 01:48:05 AM »

Quote from: silverblades181;18722

300hp with 15lbs of boost?

15 should be somewhere around 250ish and 20 should be just about 300 if my calcs are right...it kinda late :rolleyes:

kowalski · « **Reply #14 on:** February 03, 2007, 01:54:41 AM »

Quote from: asubimmer;18731

15 should be somewhere around 250ish and 20 should be just about 300 if my calcs are right...it kinda late :rolleyes:

I believe your correct, but it also depends on cams headwork and other things done internally and components used to maximize efficiency of that boost. i bet you could do 300 with a lot of money into components and the actual engine/machine work intakes and the like.

Author Topic: For those that have gone turbo..... (Read 8282 times)

///Motorsport