Tial 60mm gate with 3076 overboosting.....ideas?
07-11-2011, 03:03 AM
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Tial 60mm gate with 3076 overboosting.....ideas?
Have a tial 60mm gate on a ramhorn and it overboosts. The car is used for circuit/time attack racing so at some times I need low boost.
With a 11psi combination spring set it runs a minimum boost of 15psi(too much at times)
I removed the smaller spring so that I was left with just a 7.5psi spring in it and it varies from 9.5-10.5psi.
Is this acceptable? Could I run an even lower psi spring i.e 6psi or 5 psi and still use the ecu boost controller to run 19 maximum with such a low spring(5/6psi) ?
I run a motec set up that does pretty much everything.
This is what the manifold looks like....
With a 11psi combination spring set it runs a minimum boost of 15psi(too much at times)
I removed the smaller spring so that I was left with just a 7.5psi spring in it and it varies from 9.5-10.5psi.
Is this acceptable? Could I run an even lower psi spring i.e 6psi or 5 psi and still use the ecu boost controller to run 19 maximum with such a low spring(5/6psi) ?
I run a motec set up that does pretty much everything.
This is what the manifold looks like....
07-11-2011, 04:46 AM
#2
Re: Tial 60mm gate with 3076 overboosting.....ideas?
If it were me , I would use an electric boost controller with ur 7.5 spring..
http://www.xenocron.com/pwm-electron...5d7a91adbd4de0
When the ECU gets the pressure read from the MAP,the solenoid will pop the WG at the correct boost range.
Thats what i would do, but thats just me.
Edit... Im not sure how that you having the WG tube the same direction as the exhaust flow from the #2/3 cylinders.. Usually this is welded at a 90* as to not be in the exhuast flow.
http://www.xenocron.com/pwm-electron...5d7a91adbd4de0
When the ECU gets the pressure read from the MAP,the solenoid will pop the WG at the correct boost range.
Thats what i would do, but thats just me.
Edit... Im not sure how that you having the WG tube the same direction as the exhaust flow from the #2/3 cylinders.. Usually this is welded at a 90* as to not be in the exhuast flow.
07-11-2011, 05:55 AM
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Re: Tial 60mm gate with 3076 overboosting.....ideas?
A boost controller wont solve the issues he is describing.
Your manifold might have a 60mm gate welded to it but the pipe coming off the manifold is a 1.5" weld el which is smaller outer diameter than the v60's inner diameter, so you are giving up a bunch of flow. Plus its rather long. That pipe size is better matched for a 44mm gate. I'm not sure if you have the space but a 44mm Tial MVR mounted right off the manifold might work a little better OR open the port up and weld the correct size weld el to it and reuse your V60.
Your manifold might have a 60mm gate welded to it but the pipe coming off the manifold is a 1.5" weld el which is smaller outer diameter than the v60's inner diameter, so you are giving up a bunch of flow. Plus its rather long. That pipe size is better matched for a 44mm gate. I'm not sure if you have the space but a 44mm Tial MVR mounted right off the manifold might work a little better OR open the port up and weld the correct size weld el to it and reuse your V60.
07-11-2011, 02:21 PM
#4
Re: Tial 60mm gate with 3076 overboosting.....ideas?
Agreed, that and put an even SMALLER spring in there, although that MIGHT not help as there just isnt any way to get the exhaust gases out of that restrictive wastegate pipe and placement most likely
07-11-2011, 04:24 PM
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Re: Tial 60mm gate with 3076 overboosting.....ideas?
It may only be a 1.5 inch pipe but the merge onto the manifold has a larger opening than the 60mm pipe due to its angled position. Also it is facing the flow of the path of the exhaust gasses.
I did the spring sway last night and disconect the boodt control solenoid just running gate pressure at the 7.5 spring held 9.5-10.5 psi.
would a 6psi spring with the boost controler be ok for 20psi?
Traction wise with the 7.5 in it last night it was way more managable that the 15 it was running before.
I did the spring sway last night and disconect the boodt control solenoid just running gate pressure at the 7.5 spring held 9.5-10.5 psi.
would a 6psi spring with the boost controler be ok for 20psi?
Traction wise with the 7.5 in it last night it was way more managable that the 15 it was running before.
07-11-2011, 07:12 PM
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Re: Tial 60mm gate with 3076 overboosting.....ideas?
Have a tial 60mm gate on a ramhorn and it overboosts. The car is used for circuit/time attack racing so at some times I need low boost.
With a 11psi combination spring set it runs a minimum boost of 15psi(too much at times)
I removed the smaller spring so that I was left with just a 7.5psi spring in it and it varies from 9.5-10.5psi.
Is this acceptable? Could I run an even lower psi spring i.e 6psi or 5 psi and still use the ecu boost controller to run 19 maximum with such a low spring(5/6psi) ?
I run a motec set up that does pretty much everything.
So your only boosting about 2-3 psi over what the wastegate spring is? Boost will usually be 2-3 psi above wastegate, that's pretty common. Now if it just keeps boosting like hitting 20psi on a 6psi spring then you have over boost probs. But if your consitently 2-3 psi over wastegate that's pretty normal. If u want 7psi try a 5psi spring. If u run the hondata with boostcontrol then u should be able to still hit 19psi with 5psi spring
This is what the manifold looks like....
With a 11psi combination spring set it runs a minimum boost of 15psi(too much at times)
I removed the smaller spring so that I was left with just a 7.5psi spring in it and it varies from 9.5-10.5psi.
Is this acceptable? Could I run an even lower psi spring i.e 6psi or 5 psi and still use the ecu boost controller to run 19 maximum with such a low spring(5/6psi) ?
I run a motec set up that does pretty much everything.
So your only boosting about 2-3 psi over what the wastegate spring is? Boost will usually be 2-3 psi above wastegate, that's pretty common. Now if it just keeps boosting like hitting 20psi on a 6psi spring then you have over boost probs. But if your consitently 2-3 psi over wastegate that's pretty normal. If u want 7psi try a 5psi spring. If u run the hondata with boostcontrol then u should be able to still hit 19psi with 5psi spring
This is what the manifold looks like....
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07-11-2011, 08:21 PM
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Re: Tial 60mm gate with 3076 overboosting.....ideas?
We had the same issue with our tial 60mm gate. It came with two springs the should have made 15psi, but the lowest it would make was 28. I put a 9lb spring in it and it made 16lbs off the gate. Our WG placement is very short and is made of 2" pipe. Just put a small spring in it to get the low boost you want.
As for running high boost, its all about the way you control the boost. Make sure that you're clamping the top port with the controller. We run over 40psi with only a 9lb spring this way. If you are currently bleeding off the lower port to control boost it will be hard to make high boost as the e-map helps blow the gate open.
Hope that helps. You can call me at the shop if you have any questions. Phone # in sig.
07-11-2011, 08:54 PM
#10
Re: Tial 60mm gate with 3076 overboosting.....ideas?
False.
We had the same issue with our tial 60mm gate. It came with two springs the should have made 15psi, but the lowest it would make was 28. I put a 9lb spring in it and it made 16lbs off the gate. Our WG placement is very short and is made of 2" pipe. Just put a small spring in it to get the low boost you want.
As for running high boost, its all about the way you control the boost. Make sure that you're clamping the top port with the controller. We run over 40psi with only a 9lb spring this way. If you are currently bleeding off the lower port to control boost it will be hard to make high boost as the e-map helps blow the gate open.
Hope that helps. You can call me at the shop if you have any questions. Phone # in sig.
We had the same issue with our tial 60mm gate. It came with two springs the should have made 15psi, but the lowest it would make was 28. I put a 9lb spring in it and it made 16lbs off the gate. Our WG placement is very short and is made of 2" pipe. Just put a small spring in it to get the low boost you want.
As for running high boost, its all about the way you control the boost. Make sure that you're clamping the top port with the controller. We run over 40psi with only a 9lb spring this way. If you are currently bleeding off the lower port to control boost it will be hard to make high boost as the e-map helps blow the gate open.
Hope that helps. You can call me at the shop if you have any questions. Phone # in sig.
The OP can also call my office if there are any questions as well. # has been PM'd to you.
07-12-2011, 07:49 AM
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Re: Tial 60mm gate with 3076 overboosting.....ideas?
I would agree if he's on some POS boost controller, but the m800 will do closed loop boost control on any 3 parameters he wants and will react damn near as fast as a digital gauge.
Also, if he runs a spring (regardless of what its labeled) and it makes 9psi, asking for 20psi is very reasonable. Just my opinion based on what I seen.
Also, if he runs a spring (regardless of what its labeled) and it makes 9psi, asking for 20psi is very reasonable. Just my opinion based on what I seen.
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