M35 Turbo Upgrade.

[BoostdR]

76mm donut bends at the compressor into 80mm to the 80mm AFM

[BoostdR]

76mm donut bends at the compressor into 80mm to the 80mm AFM

[Philr32]

Sounds great. Forgive my ignorance, the 80mm AFM is that standard M35 or modified or off something like a R35?

[BoostdR]

Standard. Mine has been gutted as I run a MAFLESS tune

[Philr32]

Ah ok, wouldn't that mean you could ditch the AFM completely? I'm not too familiar as I haven't gotten hat far yet

[BoostdR]

I could replace the housing yes but I like the std air box and bell mouth which means I need the MAF housing to bolt to the air box and internal bell mouth.

[Philr32]

Ah ok, wouldn't that mean you could ditch the AFM completely? I'm not too familiar as I haven't gotten hat far yet

[Philr32]

Ah yea fair enough, not exactly like 80mm is a restriction anyway

[BoostdR]

I went from 2.5" to 3" intake on my race car and made 30awkw changing nothing else.

[Philr32]

Ah yea fair enough, not exactly like 80mm is a restriction anyway

[Philr32]

Yea a large intake definitely helps. I think it'll

Be one of my next mods

[BoostdR]

Was an absolute pain in the butt to make. Can understand why they are so expensive to purchase.

Even parts:

T28 to 3" intake adaptor $60

3" donut $80

80mm pipe $50

3" to 80mm silicon $20

80mm to 80mm silicon $15

Plus 5 hours labour

[BoostdR]

Turbo is on and running at wastegate pressure. Will have to check the logs to see what that pressure is. I did screw the gate up tighter by around 3mm more preload.

The turbo is very quiet. Response wise it now never feels like a normally aspirated car it always wants to spool. So normal driving is much much better. Feels like a lighter car down low.

I'll go out again in a little bit and do some logging to over lay the old vs new data. Overall the experience is changed to the sense that it now doesn't feel like a high flow. The power feels more linear rather than nothing then sledge hammer. I've found similar previously when going from straight blade to a curved Blade compressor wheel...obviously this has more than one change.

Matt

Edited March 7, 2016 by BoostdR

[BoostdR]

Boost response from my logs.

Big Boy vs SS2 Rev4

1 -.2

2.1 1.2

2.5 1.4

3 1.5

3.9 2.6

4.1 2.6

4.5 2.9

7.7 3.4

8.3 4.3

12.2 6.4

12.6 7.5

13.6 7.9

17.3 11.7

Response looks to be around 300 rpm better over the SS2 Rev4.

Running 20psi off the gate with it wound tighter

than it arrived by 3mm. Stable boost through all gears rather than lower boost for lower gears of the SS2 Rev4

Driving characteristics

http://youtu.be/W3XhdUn0c0Q

Light throttle off the line testing response (27% throttle)

http://youtu.be/WJlgrZpWCM4

Keen to get some more boost into it. Pulls very well at only 20psi.

This is a big turbo that is very easy to drive as a daily. Expecting some decent numbers. I have a center muffler to change out that I noted had a 20% restriction inside and then I'll up the boost and dyno.

Edited March 7, 2016 by BoostdR

[hypergear]

[BoostdR]

Boost now at 28psi. Try's to change lanes...in 3rd...I don't have a proper LSD being a non ARX. I've previously had a 33 4 door 5 speed auto with a RB26DETT that I ran an 11.8s quarter in (project 11's from ZOOM magazine) the Stag feels faster...

Matt

[BoostdR]

I've maxed it out with a bleed valve anyway

1st 22psi

2nd 25psi

3rd 29psi

4th ??

If I synthetically induce load with the brake I get more boost.

Played with the timing. Going from +6 to +8 degrees of timing up top makes a very noticeable difference.

1st 26 degrees

2nd 24 degrees

3rd 18 degrees

[Harrisonsarre]

My turbo is being done atm by hypergear. I went the m35rv1. Not hoping for huge power just more then stock. Iv also gone hdi intercooler, am performance dump and mid pipe, am performance suction pipe and 14psi actuator. Will i hit any sort of cut with these mods or will the ecu be able to adapt?

[Philr32]

Pretty sure you'll max injectors. I could be wrong though, but I've seen people post that they maxed their injectors without a hi-flow turbo

[Brick]

My turbo is being done atm by hypergear. I went the m35rv1. Not hoping for huge power just more then stock. Iv also gone hdi intercooler, am performance dump and mid pipe, am performance suction pipe and 14psi actuator. Will i hit any sort of cut with these mods or will the ecu be able to adapt?

You may possibly max out the afm. With similar mods prior to tuning I was hitting afm cut. But plenty have had similar with no issues.