Jump to content
SAU Community

Recommended Posts

Probably cause your ecu is trying to protect the motor! Stock turbo can't go past 13, at 14 it will blow the turbo. U got a pretty cheap controller? hence the spikes!

Probably run a few more mod- cooler and turbo back exhaust if u wanna run more than 10, then your ecu needs to be changed or remapped.

U will find the highest boost on redline gear 3!

Link to comment
https://www.sau.com.au/forums/topic/283263-boost/#findComment-4766421
Share on other sites

Probably cause your ecu is trying to protect the motor! Stock turbo can't go past 13, at 14 it will blow the turbo. U got a pretty cheap controller? hence the spikes!

Probably run a few more mod- cooler and turbo back exhaust if u wanna run more than 10, then your ecu needs to be changed or remapped.

U will find the highest boost on redline gear 3!

ok, the turbo won't blow the moment you hit 14psi. i was running my stock turbo on my 33 at 14/15psi for a year and never had an issue. i know people who have run up to 16psi and not had an issue.

as for the ecu stopping it from going any higher, that isn't right either. the ecu has protections in it, but it won't magically stop it going any higher. you can go higher but it will start throwing tantrums. without knowing your setup i couldn't say why it isn't boosting any higher than 13psi. if you still have a stock exhaust then that would explain it, or if you still have a stock cooler, that could also be a contributing factor. or it could be a problem with the controller.

Link to comment
https://www.sau.com.au/forums/topic/283263-boost/#findComment-4767202
Share on other sites

Probably cause your ecu is trying to protect the motor! Stock turbo can't go past 13, at 14 it will blow the turbo. U got a pretty cheap controller? hence the spikes!

Probably run a few more mod- cooler and turbo back exhaust if u wanna run more than 10, then your ecu needs to be changed or remapped.

U will find the highest boost on redline gear 3!

Yeah as mentioned above your ecu wont control boost. your turbo won't blow at exactly 14, could blow at 12 or could last years at 15 it's always a gamble.

Gizzmo controller is not a cheap unit and is a quality bit of gear so i wouldn't worry about that.

the advice to run bigger exhaust and cooler is spot on it never hurts to have more cooling and flow.

Link to comment
https://www.sau.com.au/forums/topic/283263-boost/#findComment-4769019
Share on other sites

Yeah as mentioned above your ecu wont control boost. your turbo won't blow at exactly 14, could blow at 12 or could last years at 15 it's always a gamble.

Gizzmo controller is not a cheap unit and is a quality bit of gear so i wouldn't worry about that.

the advice to run bigger exhaust and cooler is spot on it never hurts to have more cooling and flow.

its got a frount mount and a cat back exzaust allready on it

Link to comment
https://www.sau.com.au/forums/topic/283263-boost/#findComment-4770440
Share on other sites

Your probably running out of a lot of things, fuel, turbo, spark even.

Try getting your fuel pressure checked, regapping your plugs to 0.8, check your wastegate setting, turbo size?, dump system?

My thought anyway.

Link to comment
https://www.sau.com.au/forums/topic/283263-boost/#findComment-4772453
Share on other sites

Your probably running out of a lot of things, fuel, turbo, spark even.

Try getting your fuel pressure checked, regapping your plugs to 0.8, check your wastegate setting, turbo size?, dump system?

My thought anyway.

just got a brand new walbro fuel pump dont think it would be that

Link to comment
https://www.sau.com.au/forums/topic/283263-boost/#findComment-4772686
Share on other sites

just got a brand new walbro fuel pump dont think it would be that

Did you run a separate earth? fi you just replaced your pump and the car is playing up, I'd start there.

PS did it do this before you replaced the pump?

Link to comment
https://www.sau.com.au/forums/topic/283263-boost/#findComment-4776343
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • What does it look like with highway driving? And yes, I had a similar thought as Duncan. It looks quite similar in my Stagea and I have made myself accept it as normal. Might have to look into it some day  
    • While I was waiting for the new parts to come in for the charge pipe and radiator I decided to do some turbo modification. The drive pressure (exhaust backpressure) was a lot higher that I thought it should be. For 32lbs of boost drive was 55lbs. The turbine housing is a 1.10AR and my turbo builder has suggested to go to a 1.25AR. To test if a larger AR would do anything to reduce drive pressure AND not spend any money I decided to hog out the divider in my current housing. I removed it from the inlet and the whole way through the housing.  After reassembly and testing it doesn't look like this modification did anything for reducing drive pressure or requiring more fuel (making more power). Oh well, it was worth a shot. We'll get some data at the track if it makes it past the 60ft. I also machined a $7 shift knob off Amazon to fit my Stillway shifter since I didn't like the Stillway shift knob. Next on the list was the radiator replacement and fabrication of a new intercooler tube that had no silicon coupler. No pictures of this - I was short on time each night after work to get this done and didn't stop to take pictures.  Next was to get the clutch disks out and replaced. Previously when installing the dogbox I had ordered a set of the same sintered iron disks I had been running because I switched to the 26-spline input shaft. I thought it was odd that they didn't have any markings or brand name on them like all my old disks had but installed them anyway. At the track I could not get the clutch to lock up using my normal strategies. After two track nights I reached out to the clutch manufacturer and ask their thoughts. They said they had to switch the material out because they were having trouble getting the original material and that this new material would not take to being slipped very well.  So out with the first set of 26-spline disks and in with the correct material 26-spline disks. While I had the trans out I added an inspection/service hole. I've wanted one of these for a while. Now I can have a look at things and change the front cover shimming when needed (clutch wear). I hustled and got the clutch change done in a few hours on a Saturday. Hopped in the car and drove home. On the way home I did a 1-3 pull. When shifting from 2nd to 3rd the core plug in the back of the cylinder head popped out and dumped all the coolant. Thankfully I was only 30 seconds from home and coasted it there. Datalog showed nothing unusual and 2.5psi of coolant pressure. That plug has been in there since 1992 but I guess it worked its way out. Pulled the trans AGAIN and replaced the plug, JB welded it in, and made a brace. Also deleted the head drain I had added in during the bearing issue fiasco.  I am currently changing my boost control plumbing to make it cleaner. After that is done I'll make another attempt at getting past the 60.
    • Are you 100% sure this isn't tune related?
    • 140-150 across the board. At this point hoping the grounding harness fixes it. My grounds are all tied to the chassis and none to the battery. For SR and KA that’s never been a problem for me but had a few other guys here and Reddit who told me RB really like a very solid ground setup tied to the battery so going to try that next, I’m stumped if that doesn’t do it. Never had a car have spark and fuel and not fire off before. Only thing I can think is the spark is intermittent/weak because of grounds nothing else really makes sense at this point 
    • I am having close to the same issue. Can you help me with what wire you grounded to get your pump to trigger?
×
×
  • Create New...