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Old 09-16-2002, 11:20 AM   #1
chuglobal
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Default STI Engine & Tranny Mounts

The STI engine and tranny mounts were installed this past Sat night by Shane in my garage. It took around 3hrs since we had dinner and needed an extra tool in the meantime. The most significant difference w/ the STI engine and tranny is that the shifts are definitely much cleaner ... the engine does NOT hesitate when going from 1st > 2nd and downshifting is less harsh. 1st gear roll w/ the gas on and off does NOT jerk the car as much. Driving along the hwy I do notice a decrease in engine movement when jumping on and off the gas in 3rd-4th gear. There IS still engine movement however it has been reduced. I was hoping for less engine movement however everyone tells me that it's not possible unless I have a custom made mount. There is NVH when the car is first turned on for the first 5-10 minutes or so but goes away once the car is warmed up. I got mine from Vivid Racing for $160 shipped and they seemed to have a bunch as of last week. I am impressed that shifting was so much cleaner however I'm still trying to test the engine mounts themselves by driving hard. I guess I expected too much from the engine and tranny mounts due to my high expectations. I'll keep everyone posted.
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Last edited by chuglobal; 09-17-2002 at 08:47 AM.
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Old 09-18-2002, 09:22 AM   #2
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Default Update

The mounts definitely make a huge difference. Shifting is definitely cleaner ... still notchy for me however I can tell it's much cleaners. It seems that each REX feels different from another especially in the tranny. Throttle response is faster in 4th and 5th ... hwy driving at 2.5K rpm ... 5th = 65mph. Now when I step on the gas ... gas immediatelly starts to pull vs. shaking ( engine moving ) then finally going. I still need to do the WRX vs. WRX engine test.
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Old 09-18-2002, 07:42 PM   #3
chrisdeaner
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How was the install for these? I really want to get them, but is it something I could do in the parking lot of my dorm? Or do you need an engine crane?
Thanks,
Chris
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Old 09-18-2002, 10:43 PM   #4
slvrwrx02
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Default engine mount install?

hello,
i installed the tranny mount and shifting does feel better. but i have a question on the engine mount install.
is there a better way to get to the two bolts that bolt to the engine? you know, the ones that are between the crossmember and the engine.
any help would be appreciated.
thanks
--neil
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Old 09-18-2002, 11:07 PM   #5
chuglobal
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Default Haha...

I got 3 people asking the same question just today. I don't think there is an easier way to get to the bolts because of its location. You can use the wrench technique of using two wrenches together to get the necessary leverage as shown on Scoobymod. Shane did all of that work since I got to do the easier of the two bolts. Yes it takes a while to get through those bolts. If you get another person and a nice day outside you can do it in the parking lot. It took us <3hrs and I'm sure it could have gone faster ... some say <1.5hrs for all three mounts.
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Old 09-28-2002, 04:36 AM   #6
jimeddy
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hey Chuglobal,

i did these installs (tranny and engine mounts).
the pass. side eng. mount bottom re-bolted in about 2/3 the way up the crossbar slot as opposed to
flush bottom position of the original and driver side.

any thoughts?
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Old 09-29-2002, 07:40 AM   #7
kendo
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Anyone installed the STi engine mount on a AT? How was it?

-Kendo.
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Old 09-30-2002, 05:48 PM   #8
slvrwrx02
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Default Re: engine mount install?

Quote:
Originally posted by slvrwrx02
hello,
i installed the tranny mount and shifting does feel better. but i have a question on the engine mount install.
is there a better way to get to the two bolts that bolt to the engine? you know, the ones that are between the crossmember and the engine.
any help would be appreciated.
thanks
--neil
hello,
i figured out how to get to the two bolts that were giving me problems. i just had to be patient and everything went ok--i have the cusco lower brace that was getting in the way. removed that and all went ok. engine runs smoothly with the mounts. quicker engine responses--doesnt seem to hesitate when i get on the gas. FYI
--neil

ps. oh yea, tranny and mounts were around 2hr install--total.
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Old 10-19-2002, 05:39 PM   #9
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Default Re: Yo

Quote:
Originally posted by chuglobal
Is anyone using a higher torque spec for the STI engine and tranny mounts than what is stated in the manual? Is the last engine bolt really 62.7ft/lbs? Thanks.

Pitch Stopper = 37 ft/lbs ( Bolt w/ engine ) and 43 ft/lbs ( Bolt w/ firewall )ns
DOHC Page 119
Transmission Page 237
The engine block is aluminum, so if you go crazy on the torque you may end up ripping the thread out of the eninge.
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Old 10-19-2002, 10:49 PM   #10
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i torqued mine at 40ft lbs into the engine and transmission, and 55ft lbs to the subframe. haven't had any problems in the last 6k miles, just rechecked all of the bolts yesterday to retorque them down, they're all good.
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Old 10-27-2002, 05:33 PM   #11
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Again, anyone with an AT have this? Engine mounts only are OK, but if you have the AT mount I'm REALLY interested in knowing how it's working out.
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Old 11-04-2002, 05:25 PM   #12
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Default

Just to add to the review my own experience:
I bought/had installed my engine mounts from Rallispec in NJ.

After the install one thing that was immediatly noticable was that the clutch shudder i was getting during intial clutch engagement was significantly reduced. (I has an upgraded clutch+lightweight flywheel installed and was causing shudder) Also, the shifting now feels more direct and satisfying. I enjoy the increased vibarations and engine feel that the mounts provide but I can see how an non-enthusiast would see that as an begative side-effect. The other thing that is noticable is that the engine no longer wobbles about when idling ruffly during it's warm up phase, or when you blip the throttle etc..
Paul
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Old 11-05-2002, 11:25 AM   #13
nhluhr
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I also bought and installed the STI tranny and engine mounts. The now that it's mentioned (above) I don't remember when I started noticing the clutch shudder, but that problem is one which has been noticed by many people who have done 0 mod'ing so it's not caused by the mounts.

At any rate, I DO like the feel of the car with the new mounts in. It feels more direct... that's all I can say.
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Old 12-09-2002, 03:29 PM   #14
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I LOVE MY MOUNTS! I got all 4 (2 engine, pitch, and tranny) from ISR for $200 and I love them. More response to the pedals and the engine feels like it will stay put and not fly out of the hood. Shifting is cleaner and it should be the first mod of any car.

Rich
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Old 12-09-2002, 07:03 PM   #15
Wacky
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Quote:
Originally posted by SJwrx
I LOVE MY MOUNTS! I got all 4 (2 engine, pitch, and tranny) from ISR for $200 and I love them. More response to the pedals and the engine feels like it will stay put and not fly out of the hood. Shifting is cleaner and it should be the first mod of any car.

Rich

can you post where you found this price for all 4 ?! I checked on ISR's website and they have just the pitch stop for $59.

Thanks.
Scott
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Old 12-10-2002, 06:26 AM   #16
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I bought them first hand when I went down to So. Cal and visited them. Guess I got a "package" deal or something. But they are great people.

Rich

PS. Now that you mension it, that is a pretty sweet deal. All 4 for $200...hmm
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Old 01-10-2003, 04:50 PM   #17
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Had the STi engine, pitch stop, and tranny mounts installed today. All I have to say is 'wow'. Thanks to Dylan at Sound Performance.

Scott
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Old 01-11-2003, 12:10 PM   #18
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Just a few things:

1. If anyone orders these, be sure you specify the STi Group N mounts. Most vendors know what you're talking about, but the regular STi mounts aren't much different from stock, it's the GpN ones that are. Which I'm sure are the ones all of you got--and are the ones I have--but, just a precaution for others.

2. Does the pitching stopper shake the dashboard a lot? I've heard that it does.

3. DrBoy01, I feel for you man, haven't seen any responses to you, yet. I think some people have used it on an AT, but they're hard to find. Try running a search.

-S2-
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Old 01-16-2003, 11:51 AM   #19
lstepnio
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Thumbs up another review (wow)

I wanted to add my review to this thread. First, I'll give you a little background. I installed the STi transmission mounts almost a year ago and I was pretty happy with the results but to be totally honest it was nothing amazing. It was clearly a noticeable and worthwhile improvement but far from what I expected. I should add that I already had a Kartboy short shifter with the bushing installed when the tranny mount went in. The tranny mounts did add a little bit of gear whine noise but nothing very noticeable or annoying. The remainder of my suspension is unmodified and I have some basic engine mods including uppipe, downpipe and pulley. To give you an idea of where I'm coming from I'm keeping my OE muffler and resonator in place simply because I don't want the noise.

I recently saw the motor mounts and the pitch stopped for a good price so I decided to go ahead and order both. I first installed the pitch mount and I have to say that it had no noticeable improvements whatsoever and I really-really suggest you save your money on the pitch mount as it clearly does nothing. Later in the week the motor mounts went in and I was honestly not expecting much of an improvement and I was a little concerned about the possibility of unwanted noise and vibrations. I'm very happy to report that improvement from the motor mounts is very noticeable and the car now feels awesome and totally surpassing my original expectations for the engine mounts. Shifting under any conditions ranging from stop and go traffic to wide open throttle is just simply an amazing day and night improvement. The car also seems to handle much better which is especially noticeable when powering into turns in lower gears. The mounts greatly reduced if not eliminated the bucking in situations like getting on the gas hard or shifting hard or sloppily. The handling improvement is very noticeable in 1st gear; I can go WOT and just let off the throttle at any RPM with no drama or bucking and the car just feels solid and it's much easily to control the vehicle without upsetting the suspension when turning. I did not notice any additional noise from the motor mounts to my surprise and the only noticeable downside is when idling you can feel the engine vibrations in your seats but no noises and the car does not seem any louder inside or out as some others have reported. The idle vibrations seemed to almost go away after a day or so after the mounts broke in a bit so it's even hardly worth mentioning at this point.

In summary I could not be any happier with the way the cars feels now and I would highly recommend this inexpensive set of mods to anyone considering it.
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Old 01-16-2003, 07:29 PM   #20
jlevy
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lstepnio,

That's just the kind of review I've been looking for. I also have the trans mount and shifter bushings, but was worried the motor mounts would cause too much NVH. I think I'll have to order some now. Thanks.

-JL


edit:

because I can't type
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Old 01-19-2003, 01:37 PM   #21
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lstepnio, that's a perfect description.

I just did the engine and tranny mounts yesterday.

First thing I noticed was how quick the car starts. It does not take as long, about a second now. I have an ACT clutch and JUN flywheel and the flywheel has been giving me problems but not anymore. Cranks right up.

Next thing I noticed was idle. No engine movement whatsoever, none. This is a good thing for me because I added in a bunch of weight with the turbo, best to keep things solid so as not to break any welds. NVH to the pedals and steering wheel increased and is very noticable at idle. You can feel every rpm in your hands and feet. The car feels like a rumbly, grumbly brick.

Power around corners is simply amazing now, I can routinely send the rear wheels into a spin. This is with severe understeer too due to my bald front tires. The turbo helps a bit.

Shifting didn't change much, I already had a Cobb short-shifter and bushings so it was quite crisp to being with.

Feels like a more expensive car now, no slop. Overall, "the best bang-for-the-buck drivetrain upgrade you can make".



Charlie
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Old 01-26-2003, 08:58 PM   #22
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call me a noob but..what does NVH mean?
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Old 01-26-2003, 09:09 PM   #23
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Noise
Vibration
Harshness
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Old 01-26-2003, 09:09 PM   #24
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Quote:
Originally posted by dorifto88
call me a noob but..what does NVH mean?
Noise Vibration Harshness
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Old 01-28-2003, 07:50 PM   #25
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I got the motor mounts from Quantum racing for $86 and installed them this weekend. I agree with lstepnio's review. I should have done this earlier.

-JL
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