VespaGTS

I posted a log with the stumble above. My tuner thinks it is either cam sensors, crank sensor, or fuel pump. I am thinking of replacing all three along with the fuel filter. It’s a bit costly but that’s part of the process. Should I only use OEM sensors? Sent from my iPhone using Tapatalk

The one thing that is confusing is that I am not getting any misfiring when I log?

I wish that was all that was happening. Before with the VF46 I had it tuned and it was running great. Now with the VF52 it’s got this strange cut in power fairly consistently between 4K-5k. The tuner says it could be coil packs or at least start there. I have one coming from Subaru. I would think it would throw a check engine light with the harshness of the cut I am feeling? So strange! Sent from my iPhone using Tapatalk

Would this kind of stumble in rpm be caused by lack of fuel pressure? Sent from my iPhone using Tapatalk

Even though I am not having an error code for the coil packs I am going to pick one up. I can move it from one cylinder to the next. If that’s the problem it will solve it. I have not seen many misfits however? So this is a $118 gamble. Sent from my iPhone using Tapatalk

Log for referenceromraiderlog_20210514_114447.csv

Here is a link to a video of the boost cut.

Hi guys, So I finally got around to installing the Perrin intake, Perrin TMIC, ported manifolds, GS cross pipe, GS Up pipe and VF52. All gaskets are GS 2x metal. All vacuum lines are zip tied. All grounding straps are installed and look good. I am having a problem that is kinda strange. While doing the tune we are experiencing a boost cut that is temporary. It can happen anytime I am above 4500rpm. Its not consistent. Could an exhaust leak at the Up pipe cause this? I hear a small tickling like a up pipe gasket that is not torqued fully or is leak lightly. I will re-torque the exhaust today and spray with soapy water to look for a leak. My crank position sensor and cam position sensors were fine before the upgrade so I don't think that's it? Any advice is appreciated!

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For sale: Undamaged OEM Up Pipe that is cat-less. It has all the shields included. It came without a catalytic converter in 2007+ Legacy models. I went aftermarket and don’t need this one. Asking $90 plus shipping at $15.

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All tabs are good. I just upgraded to JDM tail lamps and don’t need these. I would like $100 plus PayPal and shipping.

Sold

Brand New Never Used! Diode Dynamics SmartTap CF18 Flasher Module. Details: The SmartTap™ is a replacement turn signal flasher relay, compatible with any vehicle using a CF18 (LM449) Flasher. With plug-and-play installation, it offers a lot more than your average relay: an embedded microcontroller is loaded with exclusive software, which adds new features to your vehicle! You can program the features just the way you'd like, with the help of the included programming guide. Tap-to-Signal: Anytime the turn signal is tapped, the turn signal will blink a number of times automatically. This one-touch signaling is a convenient way to signal other drivers when switching lanes. The number blinks is programmable, to make it as long or short as you'd like. Unique Hazard Functions: The SmartTap™ has built-in strobe, slo-mo and wig-wag hazard functions to help your vehicle stand out when the hazards are on. Apply these functions on their own, together, or with the strobe setting for a total of eight unique hazard functions! Arrival and Departure Modes: When the lock or unlock button is pressed, your turn signals will stay on in a steady glow, for better visibility when approaching or leaving the vehicle at night. The lighting time can be adjusted from 10-90 seconds for additional illumination, or disabled if desired. This product was designed, programmed, and assembled by Diode Dynamics, in St. Louis, Missouri, USA. Paid $60, Sell for $50 including shipping. Link to product: https://www.diodedynamics.com/smarttap-cf18-led-flasher-module.html

I am sending these back to CNT to swap out for another set. The flanges had just a little to much tweak to them to fit perfectly. So they are no longer for sale.

You guys are hilarious.

Hi guys, I have a set of CNT ELH for sale. I bought them and decided to stay with UEL headers. They were mounted and run for about 10 minutes and I swapped them out. Everything fit well and there is a lot of clearance for the oil filter which used to be a problem with the older versions from CNT. Comes with all gaskets and hardware unused as I have Grimmspeed metal gaskets that I use on my cars. Retails for $380 when on sale. Sell for $300 firm to hook a brother up. Shipping and PayPal would be extra. Sent from my iPhone using Tapatalk

Do reliability mods as well. Not as fun but they make the fun last longer. Also, a tune once the engine is cleared for mods. Then don't mod it much. Its an amazing car for what it is. If given the chance again I would mod less. Its very easy to get caught up in the modding bug.

Ha! Now thats funny!

The first thing to do is a compression leak down test and a smoke test. That way you will know if the engine is healthy prior to adding mods. I have seen guys on this board add a lot of great mods and have the engine go boom. So just be prepared by making sure its solid first.

For future reference the correct instructions for this install even if it is a stock location are located here: https://www.iagperformance.com/content/instructions/IAG/IAG-ENG-2072/AVCS-Turbo-Oil-Feed-Line-BB-Turbo.pdf Just ignore the connection to the Garrett Turbo and all should be good. The T-fitting is supposed to go on the back of the block not the top under the inlet. They provided a plug for this but no instructions. The problem is the instructions on the website for stock location are very vague and do not show much.

I am headed there at lunch today. Thanks Max!

I bet it’s really convenient to have Surgeline right there. We do have a newer shop in Bend that I need to go visit with a new dyno etc called Arcflash. One thing to consider about moving to 3550’ of elevation is that your tune will be different. Elevation = less HP. Yeah that dang fitting is going to be replaced today and then I tune this weekend. I’ll post my progress here later. Bonus is I can return the $225 of stock oil feed lines to Subaru today.