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Old 21-05-2017, 19:41   #31
youngsyr
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Thanks good info

Interesting the 80 was ditched at the end even with MIVEC
Saying the 80 series was ditched implies it was inferior, which I think is far from the case.

The 80 series has shown time and again that it's more than capable of running 400+ bhp with decent response.

However, the IX MR FQ-360 turbo was designed for a 300 bhp car (the JDM IX MR), so at that power level it makes sense to fit a slightly smaller turbo and benefit from better response times and lower boost threshold.

It would be interesting to see how the IX MR FQ-360 turbo performs at higher boost levels in comparison to the 80 series and in particular the 71 series.

I wouldn't mind betting that both the 71 and 80 series are capable of producing more boost at high rpms than the IX MR FQ-360 turbo.
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Old 21-05-2017, 19:51   #32
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Sorry ditched was perhaps harsh.

Yeh I think the 80 wins up top , but down low the other is king. Depends where you want the powerband I guess

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Saying the 80 series was ditched implies it was inferior, which I think is far from the case.

The 80 series has shown time and again that it's more than capable of running 400+ bhp with decent response.

However, the IX MR FQ-360 turbo was designed for a 300 bhp car (the JDM IX MR), so at that power level it makes sense to fit a slightly smaller turbo and benefit from better response times and lower boost threshold.

It would be interesting to see how the IX MR FQ-360 turbo performs at higher boost levels in comparison to the 80 series and in particular the 71 series.

I wouldn't mind betting that both the 71 and 80 series are capable of producing more boost at high rpms than the IX MR FQ-360 turbo.
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Old 22-05-2017, 09:59   #33
Ben_r1
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I can post my recent dyno graphs if you like, I have the OE IX MR FQ360 turbo fitted.

I have a boost graph that shows 1.7 bar tailing off around 6000rpm.

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Originally Posted by youngsyr View Post
Saying the 80 series was ditched implies it was inferior, which I think is far from the case.

The 80 series has shown time and again that it's more than capable of running 400+ bhp with decent response.

However, the IX MR FQ-360 turbo was designed for a 300 bhp car (the JDM IX MR), so at that power level it makes sense to fit a slightly smaller turbo and benefit from better response times and lower boost threshold.

It would be interesting to see how the IX MR FQ-360 turbo performs at higher boost levels in comparison to the 80 series and in particular the 71 series.

I wouldn't mind betting that both the 71 and 80 series are capable of producing more boost at high rpms than the IX MR FQ-360 turbo.
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Mita (22-05-2017)
Old 22-05-2017, 10:29   #34
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Although of course from the original title that would be great if you could

I guessed it would tail at 6...

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Originally Posted by Ben_r1 View Post
I can post my recent dyno graphs if you like, I have the OE IX MR FQ360 turbo fitted.

I have a boost graph that shows 1.7 bar tailing off around 6000rpm.
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Old 23-05-2017, 12:45   #35
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I can post my recent dyno graphs if you like, I have the OE IX MR FQ360 turbo fitted.

I have a boost graph that shows 1.7 bar tailing off around 6000rpm.
I'd be interested to see them!

Probably worth pointing out that 1.7 bar boost tailing off at 6,000 rpm can be entirely due to the mapping and the mapper trying to reduce power below the turbo's maximum capability (to protect the engine).

Also, the bigger at turbo is, the more efficiently it can produce boost at higher rpms - this can mean that the same engine will produce more power at 1.7 bar and 6,000 rpm than a smaller one. This is getting a bit beyond my understanding, but from memory it's at least partially due to heat and smaller turbos creating more of it at loads than bigger turbos.

Hotter air has less oxygen than cooler air, so it's not only the boost and rpm figures that you need to consider when assessing a turbo's performance.
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Old 23-05-2017, 17:35   #36
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Come on Ben, get the graph up!
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Old 24-05-2017, 06:04   #37
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Sorry pal, I'll get it posted tonight.
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Old 24-05-2017, 21:30   #38
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In the pictures on that ad, there is a picture showing a badge with MR FQ 360 #198
Then a few Pic's down it shows a different badge/build number of #200.
Very dodgy in my opinion

A lot of bull gone into writing that.
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Old 26-05-2017, 17:14   #39
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Come on Ben, get the graph up!
As requested:

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Old 26-05-2017, 18:59   #40
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Thanks Ben

I thought it may be on full boost a touch before that. Appreciate you putting that up
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