Top Hat Mounts WTF!!!

Discuss the RB20, RB25 and RB26 series engines.
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Carl H
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TOPSECRT88 wrote:wow, this **** is garbage. just go custom
HA, right this comming from the guy who went out and bought a car.


Yellow4g63
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Carl H wrote:HA, right this comming from the guy who went out and bought a car.
lol owned.

madcowvert
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i'm going to try that

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BoostFab
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Sil240 wrote:Hey!!!!I've found it.This is what you should do instead.

zer...age=1

I wouldn't mind hockey pucks, but I'm not gonna drive mine daily though.

I also e-mailed the guy from MMR direct to see if he knew if the KA/SR mounts would fit. Or if the mounts could be cut down or made shorter.They do look a bit taller than the Top Hat isolaters. But I can't really tell from the picture.

Modified by Sil240 at 8:46 PM 2/13/2007
yeah, that's what all of them need to be built like. all these kits are fuking you in the rear and giving you a piece of junk isolator that a 9-yearold can make with playdoh

gtrperformance
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BoostsFed wrote:yeah, that's what all of them need to be built like. all these kits are fuking you in the rear and giving you a piece of junk isolator that a 9-yearold can make with playdoh
HA! Custom? I have my 9 year-old making me mounts as we speak! I need more playdoh!.......EBAY!

TOPSECRT88
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Carl H wrote:HA, right this comming from the guy who went out and bought a car.
thats right

i dont think you need to build a car yourself to know what a ****ty motor mount looks like

FAST-DATSUN
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we have address the mount problem, and have changed companies that build the issolators (mounts) for us. the new company is building the new ones from a different material and two style for the drivers side issolator one with a one peace bolt for race/drift/high H.P. cars and one silimilar to the old one for the street/show people. both should be available in two (2) weeks. Mack Mckinney

gtrperformance
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FAST-DATSUN wrote:we have address the mount problem, and have changed companies that build the issolators (mounts) for us. the new company is building the new ones from a different material and two style for the drivers side issolator one with a one peace bolt for race/drift/high H.P. cars and one silimilar to the old one for the street/show people. both should be available in two (2) weeks. Mack Mckinney
Now that's friggin customer service! McKinney just went up in my book. Now if they could only find a more cost effective way to build the mounts that way it won't cost so damn much!

Sil240
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Bro I doubt it, thats where he makes his money from.It's a specialized part thats probably low volume. Especially since its not something that you replace or have to service.

I do think that its great that he stands behind his product though.

I couldn't afford it and have these mounts with the garbage rubber doughnuts for isolators. Lol

But i'm gonna make my own isolators, hopefully they'll be better and stiffer.

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Coolwhip
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FAST-DATSUN wrote:we have address the mount problem, and have changed companies that build the issolators (mounts) for us. the new company is building the new ones from a different material and two style for the drivers side issolator one with a one peace bolt for race/drift/high H.P. cars and one silimilar to the old one for the street/show people. both should be available in two (2) weeks. Mack Mckinney
+1 for Mckinney... keep us updated on these.

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BoostFab
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FAST-DATSUN wrote:we have address the mount problem, and have changed companies that build the issolators (mounts) for us. the new company is building the new ones from a different material and two style for the drivers side issolator one with a one peace bolt for race/drift/high H.P. cars and one silimilar to the old one for the street/show people. both should be available in two (2) weeks. Mack Mckinney
would you be increasing the one piece price additional $250+??? should all of them one piece to start out with???? i thought you already ditched the old version already. you can run your business, but give them the product that's quality equivalent to the money they spent. i say standardize all your isolator to the one piece.

sarcastic: *hey idiots pay us more for the "race version" so your motor don't drop to the ground with our old version that's still selling for cheaper*
Modified by BoostsFed at 10:04 PM 2/14/2007

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OKRB20DET
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just get a long bolt and some washers and stop trippin

FAST-DATSUN
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one soild piece transmits too many vibs for a street car!!!!!! unless your DRAG only vibs will brake thing very fast, there has to be some way to reduce the vibs and load on street and week end cars, ""no price change as you state..""Our prices have never changed for up-grade or to fix things!! in the 12 year we been making the RB mount kits.. The customer can chose if he want eather style , what ever he or she needs. Check web site for sale and new package deals to save $$$$.

Modified by FAST-DATSUN at 5:22 PM 2/16/2007

Modified by FAST-DATSUN at 5:26 PM 2/16/2007
Modified by FAST-DATSUN at 6:09 PM 2/16/2007

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002-M-P
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what exactly are the parts that would be most likely to break from vibrations if you did go with solid mounts and how likely/fast are we talking?

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Coolwhip
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i've been running solid aluminum mounts on my KA for about 6 months or so and they haven't broken anything but they sure make your car feel like a bed in a cheap motel room.

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300Plus
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Im running solid steal mounts on my RB and surprisingly the smooth idle of a straight 6 doesn't give too much vibration. but I have to admit you don't feel it at first but after an hour and a half drive to the track your *** falls asleep and doesn't want to wake up lol.

I'm looking into making more mounts and using urethane in some way. what is the conscience on the polyurethane dixie cup ?

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duece.four.oh.sx
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speaking of top hat does any body know the length of their drive shaft for the S13 no ABS ,im trying to save some money by doing a custom one so when my engine get's here from japan i can drop it in

Sil240
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When you drop in the motor, just measure it.With a little leeway because there is some play in the stock D-Shaft.

Yeah I currently have the Top Hat Mounts, But i was thinking about doing the Dixie cup Isolators.

I can squish the Top Hat mounts with my bare hand.No bueno. Probably a really smoothe ride, but not what I'm looking for.

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Carl H
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its not a smooth ride, its actualy scary...you can feel the engine load up and torque against them and when the mounts finaly compress then the car goes.they honestly feel like 13 year old s13 engine mounts, effin gross.

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BoostFab
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trust me it's rough, don't use solid mount on your street car, your back will thank you for it

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rbsileighty
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Mute wrote:I'd go with syko performance, and no ****ty product. http://www.sykoperformance.com. They've got a lot of experience and everything ends up fitting so damn well, all you need is a stock RB25 cross member.
Eh... read the article posted on the site. Minus the trans mount this is probably one of the better/best on the market... but I'm still not a fan. I like this idea better b/c the standard modestly supported cantilever beam idea scares me that comes in most of the other kits on the market.

I'll see what I can do about when I pull my motor out and replace the head gasket to see if I can help out. I modified my original crossmember... not pretty right now but it has math (calculated with material specs) behind it... 0.0001" deflection if I recall correctly under an assumed bounding suspension situation... aka more than just engine weight.

In the meantime someone should check out the KA isolators used in the old nissan trucks... I used those on my first swap without issues on a R32 crossmember when my clip had come with broken mounts... you'll have to experiment though as I don't have the part numbers anymore (might be able to find them in a search... don't remember if I posted what I used as it was years ago).

A smart thing companies could do would be to overmold the fasteners (top and bottom fasteners could be same part depending on isolator design) into the isolator material. Just be sure to run the numbers on how thick/deep the surrounding material should be so it doesn't break out of the isolator... and test worst case before you sell it... just my $0.02

Disclaimer... use my suggestions at your own discretion... these are just my ideas/theories

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duece.four.oh.sx
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Sil240 wrote:When you drop in the motor, just measure it.With a little leeway because there is some play in the stock D-Shaft.

Yeah I currently have the Top Hat Mounts, But i was thinking about doing the Dixie cup Isolators.

I can squish the Top Hat mounts with my bare hand.No bueno. Probably a really smoothe ride, but not what I'm looking for.
Damn you i wont see my engine in 6 weeks ,i ordered it yesterday and i trying to get as much parts as i can to drop it in......thanks for helping me out though .....any one else knows how long are the Top Hat drive shaft for the S13 .......
Modified by duece.four.oh.sx at 12:23 AM 2/17/2007

Sil240
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Are you doing a RB20 or 25????Wait duh.... reading would help.Umm S13 it just uses the stock D-shaft!!!So you don't need a new one if you doing a RB20.

Blown240sx
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Mack Ive wondered since Ive helped on several RB swaps why you all don't just have two metal washers on either side of the mount drill a whole through the mount then place a grade 8 bolt through it. We have done this mod several times on the mounts and havn't had a problem since. If you wanted to you could go as far and welding the bolt head to the bottom washer. Just a thought. Also as shown in the other thread to make the washers sit in the urithane they cut slits in the washer, makes since to me.

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homeslicej2
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Wow. If those are the real deal from TopHat...let's just say that I'm surprised. I know that every business gets some complaints and things do break even w/good manufacturing, but if several people have had this problem w/their mounts that's not good. I have hardly ever heard anyone complain about TopHat, so I guess this is a wake up call. I have seen several examples of their work in person at shows, and they always look good, but apparently not everything is good. Sucks cause I was gonna go with an SR crate motor from them, but now I wonder and if I still do I will be much more alert to the quality of work they do.

Blown240sx
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homeslicej2 wrote:Wow. If those are the real deal from TopHat...let's just say that I'm surprised. I know that every business gets some complaints and things do break even w/good manufacturing, but if several people have had this problem w/their mounts that's not good. I have hardly ever heard anyone complain about TopHat, so I guess this is a wake up call. I have seen several examples of their work in person at shows, and they always look good, but apparently not everything is good. Sucks cause I was gonna go with an SR crate motor from them, but now I wonder and if I still do I will be much more alert to the quality of work they do.
Home Im going to take a guess and say Tophat most likely doesnt make thier mounts in shop just like Mack said about Mckinney.

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homeslicej2
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They don't. They have someone make them for them/use another company's product (not Mckinney). But if they endorse the product, I'd like to think it was good. Manu. issues can arise, as Mckinney pointed out, so I'll give them that, but w/several people complaining, it makes one stop and think about them as a performance shop.

RB20DETodd
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for you rb20 people r32 x member is the winner in my book.

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MOB240
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so are all of the top hat mounts like this? do they all fall apart?

madcowvert
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Blown240sx wrote:
Home Im going to take a guess and say Tophat most likely doesnt make thier mounts in shop just like Mack said about Mckinney.
i think there made in india atleast thats what the sticker on the isolator said..

i have a drive shaft for a rb25 if thats what your putting in i can get teh size for you.


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