[CRE]

Will the MSV7.0 support it though? I would prefer a different engine management solution but right now I'm not inclined to switch to a standalone. I don't like the absence of airflow measurement with running Alpha-N.

I'm probably going to put further mods on hold for the winter and in the spring at least relocate the temp sensor and get the car tuned.

[Soravia]

Originally Posted by CRE

I'm running on the stock clutch and flywheel. The power and torque curve are leanear enough and mild enough that there is little concern of a healthy clutch failing. I may, in the future, switch to a lightweight flywheel but a different clutch or pressure plate aren't really needed.

The twin plate wheel might be masking your slips. I say upgrade early.

[BlueM3Wagon]

So I feel really good about this last revision. I think we're there. Drivability is phenomenal, car acts like NA daily during cruising. Very responsive above 4K, I haven't noticed any trans slips so feel there's more there with E tune and meth, possibly smaller pulley. Here's a video of a 0-100 run (up hill slightly). I have an e50 tune and full E tune I'll install after dyno.

[NYBulldog]

Originally Posted by Michaellcoates

So I feel really good about this last revision. I think we're there. Drivability is phenomenal, car acts like NA daily during cruising. Very responsive above 4K, I haven't noticed any trans slips so feel there's more there with E tune and meth, possibly smaller pulley. Here's a video of a 0-100 run (up hill slightly). I have an e50 tune and full E tune I'll install after dyno.

If only my junkaroni drove like this. DMing you soon.

[BlueM3Wagon]

Quick update. Tune is still spectacular, however in the last week i noticed what was a loud bearing sound coming from the SC. I changed the oil when I changed oil 1500 miles ago, but sure enough no oil in the SC at all. Filled an entire bottle and registered full. One week later, same sound, looked and half empty. I have no oil anywhere externally so I assume bad bearing and leaking internally sending into the intake. Emailed Vortech to see if they have any opinion. 🤦*♂️

[Noir]

Originally Posted by Michaellcoates

So I feel really good about this last revision. I think we're there. Drivability is phenomenal, car acts like NA daily during cruising. Very responsive above 4K, I haven't noticed any trans slips so feel there's more there with E tune and meth, possibly smaller pulley. Here's a video of a 0-100 run (up hill slightly). I have an e50 tune and full E tune I'll install after dyno.

that's wicked

[Kubricks]

Originally Posted by Michaellcoates

Quick update. Tune is still spectacular, however in the last week i noticed what was a loud bearing sound coming from the SC. I changed the oil when I changed oil 1500 miles ago, but sure enough no oil in the SC at all. Filled an entire bottle and registered full. One week later, same sound, looked and half empty. I have no oil anywhere externally so I assume bad bearing and leaking internally sending into the intake. Emailed Vortech to see if they have any opinion. 🤦*♂️

Did you get this sorted? I missed this post.
My Vortech weeps a bit at the venting plug if I drive the car real hard and perhaps a tiny bit at the shaft seal, nothing too serious. I have never went through a bottle in 1500 miles.

[BlueM3Wagon]

Originally Posted by Kubricks

Did you get this sorted? I missed this post.
My Vortech weeps a bit at the venting plug if I drive the car real hard and perhaps a tiny bit at the shaft seal, nothing too serious. I have never went through a bottle in 1500 miles.

I haven't driven the car much since my last post so I haven't been able to monitor further. I did hear back from Vortech, they said I probably confused the rattling normal chatter at start up for no oil and overfilled it causing too much pressure to blow the seal. That was a little insulting and don't see how this is possible as I kept monitoring dip stick with small pours until it was registering. You mention the vent plug, that's what I thought it was for, to vent Incase there was added pressure? Why would pressure blow the seals first? Regardless, they said it would cost 600-900 to repair and take 3-4 weeks. At that turnaround and cost I'd be more inclined to open it up and repair myself. Just need to rent bearing pullers I believe.

[Kubricks]

Originally Posted by Michaellcoates

I haven't driven the car much since my last post so I haven't been able to monitor further. I did hear back from Vortech, they said I probably confused the rattling normal chatter at start up for no oil and overfilled it causing too much pressure to blow the seal. That was a little insulting and don't see how this is possible as I kept monitoring dip stick with small pours until it was registering. You mention the vent plug, that's what I thought it was for, to vent Incase there was added pressure? Why would pressure blow the seals first? Regardless, they said it would cost 600-900 to repair and take 3-4 weeks. At that turnaround and cost I'd be more inclined to open it up and repair myself. Just need to rent bearing pullers I believe.

Some reference here of my case, hope it helps'

1. The Venting plug

As above photo.
The Venting plug has a breather on side which is designed to release excessive pressure within the unit. You can see some red supercharger oil on it, I was told this is normal.

2. The Vortech gear chatter

Check the video about the chatter noise on my Vortech. It sounds like this at idle since purchase, the noise goes away above 2000rpm.

3. If you read my post you know that I have replaced the shaft seal before.
I bought them here, works well.
https://928motorsports.com/parts/pre...haft_seals.php

[BlueM3Wagon]

Does anyone know the filter size on the N52 kit? I thought it used the same one for the S65 kit RU-1785 but it's much bigger. ESS doesn't list it on site at all.

[Kubricks]

Originally Posted by Michaellcoates

Does anyone know the filter size on the N52 kit? I thought it used the same one for the S65 kit RU-1785 but it's much bigger. ESS doesn't list it on site at all.

RU-3130

View post on imgur.com

[tlow98]

so much good work in here! any final dyno plots? anxious to see where this kit lands with good tune.

either way, super happy to see it's running great

[CRE]

I don't have a current dyno. I was making around 300rwhp and 270ft lb with the kit in it's base form. I'm not sure how accurate those number are, the shop was having some issues with their new dyno when we ran it. I'm running a much smaller pulley and WMI now, once tuning is done I'll hit the dyno again.


Does anyone have any links to documentation on the N52 throttle body and its operating states? Perhaps info on whether it behaves differently when running Alpha-N? Mine is not open all the time and I want to figure out when it's opening and if it's only switching between full open and full closed or if it opens partially at any point. Both myself and another guy who is running the same setup that I am have light vacuum across the RPM range until we go past about 40% throttle. Past the ~40% threshold we've got boost across most of the RPM range, so it is throttle specific.

[rjahl]

Originally Posted by CRE

I don't have a current dyno. I was making around 300rwhp and 270ft lb with the kit in it's base form. I'm not sure how accurate those number are, the shop was having some issues with their new dyno when we ran it. I'm running a much smaller pulley and WMI now, once tuning is done I'll hit the dyno again.


Does anyone have any links to documentation on the N52 throttle body and its operating states? Perhaps info on whether it behaves differently when running Alpha-N? Mine is not open all the time and I want to figure out when it's opening and if it's only switching between full open and full closed or if it opens partially at any point. Both myself and another guy who is running the same setup that I am have light vacuum across the RPM range until we go past about 40% throttle. Past the ~40% threshold we've got boost across most of the RPM range, so it is throttle specific.

The throttle body is controlled by load maps within your tune.

I could post stock maps but that would be useless, your tuner would have modified them.

On a stock N52 the throttle body is little more than a back up to the VVL.

If you are logging throttle closures under load, ask your tuner about them.

[CRE]

Originally Posted by rjahl

The throttle body is controlled by load maps within your tune.

I could post stock maps but that would be useless, your tuner would have modified them.

On a stock N52 the throttle body is little more than a back up to the VVL.

If you are logging throttle closures under load, ask your tuner about them.

Thanks! I've got someone who's going to start working on a tune for me but the tune loaded presently is the ESS tune and they're not likely to share much. I've read too many posts saying that it's pretty much always open... obviously not the case.

Do you have the stock table for the TB? I'd like to see it if you do.

[Kubricks]

Originally Posted by CRE

I don't have a current dyno. I was making around 300rwhp and 270ft lb with the kit in it's base form.

if you are talking about the ESS original tune and the 120mm pulley ... I don't think it make those power, not even close.
On a dynopack I am only making 260 rwhp with the ESS original file (stock car about 225rwhp, you can say it reads low always but number are all just relative). I pit it against my friends' 135i and 335i of various tuning level and the power level is about right.

How's your AEM meth injector port holding on the silicon charge pipe? Did it work well?

[CRE]

Originally Posted by Kubricks

if you are talking about the ESS original tune and the 120mm pulley ... I don't think it make those power, not even close.
On a dynopack I am only making 260 rwhp with the ESS original file (stock car about 225rwhp, you can say it reads low always but number are all just relative). I pit it against my friends' 135i and 335i of various tuning level and the power level is about right.

How's your AEM meth injector port holding on the silicon charge pipe? Did it work well?

Different types of dyno. Stock on Dynojets the 3.0si averages around 230rwhp. I started with a 115mm pulley. I'm running a 104mm pulley now. On a Mustang dyno I would have seen numbers around 240hp.... it varies a lot. As I said though, I'm skeptical of any dyno results. They're best used for back to back comparisons of the same vehicle. Comparing other Dynojet results with mine, if I only made another 30-35hp I would have just set the car on fire and walked away. So, if the dyno was off (VERY possible) my car is better off for it.

Yeah, no issues with the charge pipe at all. I've had the nozzles out for swapping in different sizes several times and haven't had any issues with leaks. Using a Devil's Own 90 degree nozzle holder it's a tight fit though due to the depth of the adapter. I installed on for another G1 owner and it's holding up perfectly as well.

[Kubricks]

Originally Posted by CRE

Different types of dyno. Stock on Dynojets the 3.0si averages around 230rwhp. I started with a 115mm pulley. I'm running a 104mm pulley now. On a Mustang dyno I would have seen numbers around 240hp.... it varies a lot. As I said though, I'm skeptical of any dyno results. They're best used for back to back comparisons of the same vehicle. Comparing other Dynojet results with mine, if I only made another 30-35hp I would have just set the car on fire and walked away.

Yeah, no issues with the charge pipe at all. I've had the nozzles out for swapping in different sizes several times and haven't had any issues with leaks. Using a Devil's Own 90 degree nozzle holder it's a tight fit though due to the depth of the adapter. I installed on for another G1 owner and it's holding up perfectly as well.

Well I almost did set it on fire LOL. Did yours come with a 115mm pulley? I think mine if 120mm.
Anyways, my AEM injector are in order and I am thinking of drilling a small hole on the Vortech exhaust side, wonder if it will work as intended.

[CRE]

Originally Posted by Kubricks

Well I almost did set it on fire LOL. Did yours come with a 115mm pulley? I think mine if 120mm.
Anyways, my AEM injector are in order and I am thinking of drilling a small hole on the Vortech exhaust side, wonder if it will work as intended.

I live at a higher altitude so I specified that and they sent that size.

You're running the Vortech kit, yeah? Which injectors are you running?

It should be fine at the compressor outlet. As close as possible to the head is recommended but as we're not running intercoolers and the intake path is only around a meter I don't think it makes a big deal. The only alternative to get it closer on mine would have been a 6 nozzle setup direct to the runners.

EDIT: If you haven't relocated your IAT yet, I really recommend it. What the IAT inside the MAF reports from before the SC is VERY different then what's actually entering the engine and when the WMI is running it shifts a lot too.

[Kubricks]

Originally Posted by CRE

I live at a higher altitude so I specified that and they sent that size.

You're running the Vortech kit, yeah? Which injectors are you running?

It should be fine at the compressor outlet. As close as possible to the head is recommended but as we're not running intercoolers and the intake path is only around a meter I don't think it makes a big deal. The only alternative to get it closer on mine would have been a 6 nozzle setup direct to the runners.

EDIT: If you haven't relocated your IAT yet, I really recommend it. What the IAT inside the MAF reports from before the SC is VERY different then what's actually entering the engine and when the WMI is running it shifts a lot too.

Injector as in the meth nozzle? It'd be a 500cc.
Thanks, will look into the IAT issue. What type of IAT sensor you are using now and where is it relocated to?

[BlueM3Wagon]

It's with a heavy heart I inform my friends that the SC development road has ended for me. With that said, this happened today... engine swap time!

[Biginboca]

Originally Posted by Michaellcoates

It's with a heavy heart I inform my friends that the SC development road has ended for me. With that said, this happened today...

Awesome, congratulations! This is going to be an awesome build. What is the damage to that car?