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Delta X Motorsport Pitch Mount

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#62 ·
Ok so I’ve gone through two tanks of gas since I installed the mount with the 70a bushing so I can safely say that I’ve driven over 500 miles. I drove the car a lot more than I normally would just to get the 500 miles out of the way quickly and here is my feedback specific to the 70a bushing insert only. When I first installed the mount with the 70a the NVH was very, very significant as I said in my post when I first installed it. The bushing does break in slightly once you get to the 250-300 mile mark but then it doesn’t change much if any after that. The vibration is very noticeable at lower rpm’s between I’d say 1000-2200ish. When your driving the bushing feels fine and I really liked how the car felt but as soon as the rpm’s drop the vibration is there. I found myself kind of changing the way that I drove to try to reduce the vibration. For example let’s say that I was turning on to a side street then I’d drop 1 gear lower than I normally would to bring up the rpm’s to reduce the vibration. Last Sunday I was on the southern state parkway stuck in very bad traffic and it literally took my 35-40 minutes to get 3 exits. Traffic was literally moving 5-8 miles and hour and the vibration in the car at that speed was really, really bad. I’m sure that for track use the 70a would be great because I really liked it when I was moving at speed but it’s just the lower rpm’s is where the 70a is really hard at least for me to deal with just because of the big increase in vibration in the car. I gave the 70a a shot and I was hoping that it would really settle down but I’m going to have to change it out to the 60a bushing this weekend.
 
Discussion starter · #63 ·
@Audiowerksnyc thank you for taking your time to give us your feedback and I also thank you for enduring the harsheness you experienced with the 70A for as long as you did. It is data that will help me inform others more accurately about the differences this chassis is experiencing with the higher Duro.

Out of this first batch of 50 that have been send out 30 people chose the 70A bushing along with the 60A. I don’t have an exact tally of how many of those people chose to install the 70A but I do have feedback form 8 that have. 3 out of the 8 have had a similar experience to you and the other 5 have not.

This backs up my theory that the manufacturing process of our chassis causes variance in acceptable resonant frequencies from chassis to chassis. Unlike traditional manufacturing our cars are assembled on one gig where all of the reinforcement is completed and then scanned with lasers for the robot to know where to mount our suspension. So it relay makes sense why it works well for some people and others are experiencing drastic NVH. It’s a lottery in a sense.

To add, I have not had one person complain of NVH issues with the 60A to include one that switch from the 70A due to the harshness. I look forward to hearing your feedback once you get it swapped out. If for any reason you are still unhappy let me know and I’ll send you a return label and give you a refund 👊😎
 
#64 ·
Audiowerksnyc said:
Ok so I’ve gone through two tanks of gas since I installed the mount with the 70a bushing so I can safely say that I’ve driven over 500 miles. I drove the car a lot more than I normally would just to get the 500 miles out of the way quickly and here is my feedback specific to the 70a bushing insert only. When I first installed the mount with the 70a the NVH was very, very significant as I said in my post when I first installed it. The bushing does break in slightly once you get to the 250-300 mile mark but then it doesn’t change much if any after that. The vibration is very noticeable at lower rpm’s between I’d say 1000-2200ish. When your driving the bushing feels fine and I really liked how the car felt but as soon as the rpm’s drop the vibration is there. I found myself kind of changing the way that I drove to try to reduce the vibration. For example let’s say that I was turning on to a side street then I’d drop 1 gear lower than I normally would to bring up the rpm’s to reduce the vibration. Last Sunday I was on the southern state parkway stuck in very bad traffic and it literally took my 35-40 minutes to get 3 exits. Traffic was literally moving 5-8 miles and hour and the vibration in the car at that speed was really, really bad. I’m sure that for track use the 70a would be great because I really liked it when I was moving at speed but it’s just the lower rpm’s is where the 70a is really hard at least for me to deal with just because of the big increase in vibration in the car. I gave the 70a a shot and I was hoping that it would really settle down but I’m going to have to change it out to the 60a bushing this weekend.
Click to expand...
I swapped to the 70a last week and the vibration isn’t that bad to me, definitely an increase though. The 60a continued to soften up upwards of 1000 miles, especially after some spirited driving on the dragon. It could get better still. I’ll post an update once I have the 70a well broken in. A lot of this is probably just preference though.
 
Discussion starter · #65 ·
Driving habits can most definitely speed up or slow down the break in mileage. My estimation on break in is only that an estimation. I did come up with the number due from reading reviews of pitch mount installations on Non-GR E210’s. Some have said that it took up to 1000 miles before noticing its final NVH. I put an estimated 500mi with the thought that we will be hooning a bit more often and since our chassis is more ridged it would break in quicker.

unfortunately I can’t give personal experience because with the 60/70/80 I have not experienced NVH that would stop me from daily-ing with it. So I’m really relying on feedback from you guys.

Again I thank you all for chiming in and if anyone is not happy with the benefits please reach out.
 
#66 ·
Thanks for all the feedback everyone!

Hard to know what perceived vibration would be acceptable, so subjective. I think I am willing to tolerate more than most since I obviously prefer performance cars.

I suppose any of the durometer bushing upgrades are a noticeable performing improvement over the OEM sloppiness. Personally I'm debating 60a vs 70a...
 
#68 ·
lazerbeak said:
Thanks for all the feedback everyone!

Hard to know what perceived vibration would be acceptable, so subjective. I think I am willing to tolerate more than most since I obviously prefer performance cars.

I suppose any of the durometer bushing upgrades are a noticeable performing improvement over the OEM sloppiness. Personally I'm debating 60a vs 70a...
Click to expand...
I think you hit it on the nose here. I’m running the 80A bushing and like the NVH even though the harshness is coming down. I can tell what the car is doing way better now than I could before.
 
#69 ·
CHEEKY GR-E210 said:
@Audiowerksnyc thank you for taking your time to give us your feedback and I also thank you for enduring the harsheness you experienced with the 70A for as long as you did. It is data that will help me inform others more accurately about the differences this chassis is experiencing with the higher Duro.

Out of this first batch of 50 that have been send out 30 people chose the 70A bushing along with the 60A. I don’t have an exact tally of how many of those people chose to install the 70A but I do have feedback form 8 that have. 3 out of the 8 have had a similar experience to you and the other 5 have not.

This backs up my theory that the manufacturing process of our chassis causes variance in acceptable resonant frequencies from chassis to chassis. Unlike traditional manufacturing our cars are assembled on one gig where all of the reinforcement is completed and then scanned with lasers for the robot to know where to mount our suspension. So it relay makes sense why it works well for some people and others are experiencing drastic NVH. It’s a lottery in a sense.

To add, I have not had one person complain of NVH issues with the 60A to include one that switch from the 70A due to the harshness. I look forward to hearing your feedback once you get it swapped out. If for any reason you are still unhappy let me know and I’ll send you a return label and give you a refund 👊😎
Click to expand...
No problem. I just wanted to be able to give honest feedback after having the bushing break in. It wouldn’t be fair to say that the bushing is too hard without having actually having used it for a decent amount of miles and just to reiterate. I don’t have an issue with the bushing when I’m actually driving and moving at speed, it’s the slow speed low rpm vibration that is too much for me. One thing that I forgot to mention in my earlier feedback was that I noticed that the 70a seemed to soften just slight when it was warmer temperature vs cold. For example we had a couple of unusually warm days where I live on Long Island and when I was working nights that week so I drove the car to work at about 230-300pm and it was warm outside so the bushing seemed to be just slightly softer and when I left work at 1am it was cold outside and the bushing seemed to be its normal stiffness again. The point is that maybe guys in warmer climates might have better experiences vs me in NY where it’s going in to the winter season now.
 
#72 ·
Discussion starter · #73 ·
I have already placed the order for the next batch. He told me lead time is about 2 weeks. Then I will have to do sandblasting, anodizing and lastly laser etching. Which all takes about 1 week.

My best guess is that I will be shipping out next batch orders first week of December.

No pressure to anyone but if you want to pre-order and lock in an allocation you can. Already 10 on that list and this batch is of 25 kits.

Send me a DM if interested 👊😎
 
#77 ·
I'm on the list! Very excited! The more I drive the car & am comfortable with it the more I want to push it and shift faster. I think I am getting the sensation that the engine/transmission rocks in the cradle under load - it will be nice to firm that up with the new mount.
 
#78 ·
Ok guys earlier today I changed the mount insert to the 60a and even not broken in the vibration is waaaaaaaay less than the 70a. I’ve driven the car about 50 or so miles and so far so good. The NVH is much more reasonable now and in my humble opinion the 60a is the way to go for everyday use. One thing that I will mention as a side effect of the heavy vibration with the 70a insert the rear wing was chattering against the rear hatch glass when I would back in to my driveway. I only noticed this when reversing in the driveway since im on a bit of a slant. This issue most likely will only apply to the circuit edition wing. I removed the 4 10mm bolts on the side of the hatch that hold down the sides of the wing and I placed two neoprene washers as spacers between the lower part of the wing and the hatch mounting point. The wing seems to only have padding or foam towards the top of the wing so the bottom “points” sit on the glass. The 4 bolts have blue loctite on them so if you guys need to do this just add some loctite when you put the bolts back in.
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#79 ·
Those neoprene washers are very handy and Toyota uses them all over on my Tundra on the door panel clips, another squeak prone area. Good factory style solution you employed there.
 
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