hey guys,

In addition to our b and h-series turbo kits, Maxrev now offers CNC machined billet aluminum motor mount kits for the honda b-series engines. These parts will allow you to swap any b-series engine into any 1988-1991 civic or crx. We use the highest quality material available and include everything you need at only $379 plus shipping.





MaxRev Motorsports

 

Nice... their quality looks to be very high

Miguel

 

What type of aluminum are you using???

2014, 2024, 6061,or……..please tell me they are made out of 7075. .

Also in the first pic, the mount on the left. It looks like the part encapsulating the rubber mount is welded to the part the bolts to the engine bay. You can see the weld in the pic. So technically speaking they are not 100% billet aluminum mounts.

One more question. What are you making those mounts on? 3-axis CNC mill, 5-axis CNC mill, CNC turning center with live milling head, etc.?

 

Scott,

In answer to your questions, the material used is T6-6061, this is the ideal material for the motor mounts for several reasons.
First of all, major drawback or using 7075 would be an approximately $200 increase in price. This would be because of increased material and machining/ tooling costs. The T6-6061 actually has a better damping aspect and longer fatigue life than 7075. Using 7075 for motor mounts on a Honda would be somewhere along the equivalent of building 2 foot concrete foundation for your tent.

As far as the machining process goes, all parts are made on an Okuma 4020 vertical machining center 3 axis CNC. Machining them on a CNC turning center with a live milling head would be absolutely ridiculous, I sure wouldn't want to program that .

There is 1 weld on the left mount, it connects 2 billet parts together. This weld saves a great deal in machining time, wasted material, and therefore money. This is part of the reason that we are able to offer the mounts at the price they are. We feel that this decision is hardly a tradeoff.

The right mount is actually 2/3 pieces. This is to allow for adjustability in the motor location. The 3rd optional piece is a 3/8 plate insert that is used to adjust the driveline angle based on your setup.

 

Shane,
“Using 7075 for motor mounts on a Honda would be somewhere along the equivalent of building 2 foot concrete foundation for your tent.” Sounds good to me After all they are engine mounts.

7075 is defiantly not cheap and it will increase your machining/tooling cost but when I see a company that is willing to make performance/aftermarket parts out of it that says something about that company. It tells me they are willing to spend the extra money and offer a higher quality product then the shop down the street. You see a lot of JDM companies using 7075 and a lot of US companies stick with 6061 to keep cost down. If I had the choice to pick between to types of mounts, one made out of 7075 or one made out of 6061 T6. I would spend the extra $200 for the 7075 mounts. But that is just me.

Shane don’t get me wrong the mounts look nice!!!

I like using 7075 as often as I can when it comes to making parts out of aluminum. If a friend needs something machined up, I go to the 7075 material rack. I personally like machine 7075 over 6061. 6061 seams to be gummy when you machine it.

Don’t ask me to program a CNC turning center with a live milling head. I crash it the moment it was time to do a tool change or active the milling head I will stick with my 3 axis CNC VMC.

Quick question, did you design the mounts on a sold model CAD system? I’m just wondering if you used any CAD programs that can calculate fatigue life of your part. Like Pro Mechanica for Pro Engineer.




[Modified by MadtownSi, 12:46 PM 6/8/2002]


[Modified by MadtownSi, 12:47 PM 6/8/2002]

 

The quality of those mounts looks outstanding

 

but then again you can use 7178-T9 , actually popular choice for archery equipment but expensive as hell

 

You know what…I should have known by just looking at the pics they were not made out of 7075. From what I have been told 7075 can’t be welded, or is extremely hard to weld.

Shimano supposedly welds up 7075 on their crank arms for their XTR components. I have spoken with some engineers from Trek and they could not figure out how Shimano managed to weld them.

 

Hey Scott, thanks for your interest in our product, I'm more than happy to go over your questions and concerns.

---"I would spend the extra $200 for the 7075 mounts. But that is just me."---

I will make them for you out 0f 7075 for you for an extra $200 if you're interested.

---"I like using 7075 as often as I can when it comes to making parts out of aluminum. If a friend needs something machined up, I go to the 7075 material rack. I personally like machine 7075 over 6061. 6061 seams to be gummy when you machine it."---

I can respect using more expensive materials when necessary. It's cool to have bragging rights about your car. And I definitely feel that having these mounts deserve bragging rights. However, as I said before, this material is completely adequate for the application. We have these mounts on cars and have never once had any issues with failure. To call T6-6061 gummy surprises me. I'm currently holding a chip in my hand with 20 thousandths of an inch thickness that I cant deform with my hand. It's stronger than it looks!

---"Quick question, did you design the mounts on a sold model CAD system? I’m just wondering if you used any CAD programs that can calculate fatigue life of your part. Like Pro Mechanica for Pro Engineer. "---

That's an interesting question. In order to answer it you have to realize the reason for computer modeling. Computer modeling is optimum under a few circumstances,

1. When building an actual part is very costly. A computer model allows you to change your design to optimize the part without having to rebuild it. In the case of these mounts, the necessary qualities are that they hold the motor in the proper position and that they do not fail. It does not take a computer to determine where the mounts go; It takes a pencil and a measuring device. As for failure, I have much more confidence in real world testing than I do in computer simulations.

2. When the inputs into the model are easy to work with, I.E. with an exhaust manifold, your variables are simply the temperatures of the exhaust gas, and the flow (CFM or whatever). In this case, what we have is a reasonably complicated dynamic system. While the mounts are statically determined, acquiring the forces and torques on each point requires a good deal of work, and is part of the reason that FEA and Von Mises analysis would not output data that I feel valuable. Also, in the attached photo of the Von Mises analysis, you have to realize that this type of analysis, although extremely popular for gathering failure criterion for ductile, homogeneous, isotropic materials the system we have here is NOT STATIC. As for fatigue testing, by definition, Von Mises analysis applies to static loading and does not address cyclic (fatigue) loading.

3. A computer model is only as good as the assumptions. There are thousands of examples of success without computers help and failure with. A very memorable example that could be brought up would be America’s ability to put a man on the moon with literally not too much more than a few hundred books and slide rules. The converse? Go ahead and look at the computer age and check out what happened to the challenger. Unconsidered temperature ranges, and incorrect assumptions couldn’t have made up for with all the computers in the world.
What I’m basically getting at here is that computer modeling, for this system, is not necessary, just like using 7075 aluminum. I say this without hesitation, and we stand behind these mounts. If you’re still not convinced about the longevity of the parts, they do come with a lifetime warranty.

---“You know what…I should have known by just looking at the pics they were not made out of 7075. From what I have been told 7075 can’t be welded, or is extremely hard to weld”---

Welding aluminum by nature is difficult 6061 or 7075. 7075 is more a bit more difficult to weld. There are a few more procedures that are required in the preparation and annealing process, but it’s definitely doable.

---“ Shimano supposedly welds up 7075 on their crank arms for their XTR components. I have spoken with some engineers from Trek and they could not figure out how Shimano managed to weld them.”---

Really, I didn’t know that, I have a set of these on my Marin Team issue, I’m going to go look for the welds as soon as I get home.

 

wow, looks like someone knows thier ****

 

Madtownsi, Are you a machinist? it seams like you use/know Pro-Engineer? I use that program daily!!! (My job) Mechanical draftsman/designer.
Those were some great questions!! I love learning all the "useless" crap Way to keep the salesman on his toes!
Ah well "Drive fast and take chanes"

Way to know your **** Shane!!

 

What about 94-01 integras and 92-95 civic mounts?
EVIL

 

We are planning on making a solid rear mount for non swapped motors. This will be primarily a race part as it will cause quite an increase in Noise and Vibration in the cabin.

 

what is your contact number? im looking for mounts right now. thanks.

 

shop phone is 480-985-1315, we're here late.
call anytime.

 

hey guys,
computer crashed and I lost my PM's , I had a chance to read them, but I dont remember who they're from, Please resend,

Thanks,

 

they are definately as strong as the competitors kits, none of which have ever had problems with breaking, and like I said, we do offer a lifetime warrenty against defects. As far as position of the motor, it is very close to the same. What we are trying to do is to offer a super high quality beautiful part at a very reasonable price, which happens to be less than competitors.

 

how much you have to cut off of the shift linkage?

 

what shift linkage do u use with these mounts?

 

ya you need a kit for 92-95

 

do u have them in stock?

 

yep