700R4 transmission in a HMMWV

[TOBASH]

Have you identified the exact Whipple unit you plan to install? I would ike to look at it and compare it to the Bullet. Thanks.

I already have the unit. I can post pics in a few days. Currently packed away in my outdoor storage container, and it’s cold out.

One advantage of the Whipple is rebuild parts seem to be accessible in the USA. I wonder about the Bullet for us in the USA. Also what about delivery charges?

How do you plan on keeping the harmonic balancer from spinning on the crankshaft? Does this kit have a dowel insertion drill guide?

 

[Sharecropper]

How do you plan on keeping the harmonic balancer from spinning on the crankshaft? Does this kit have a dowel insertion drill guide?

I haven't progressed that far yet with Bullet. However their 6.5 unit is not something they "just came out with". They currently have many units running on 6.5's, so evidently they have addressed the matter. I will re-post here when I have answers.

 

[MattNC]

Have you guys seen the kit BMI is developing and now says is for sale for a full mechanical turbo for hmmwvs? They have a 6.2 and 6.5 kit. I’d like to see some reviews of it at some point. They are 3 hr from me so maybe a road trip. My friend is a Detroit diesel mechanic and I want him to give his thoughts as well. I wonder if you’d need to stud the heads and if that’s included with their kit. It would be a nice combo with a 700r4 or 4L80

 

[jkcondrey]

Have you guys seen the kit BMI is developing and now says is for sale for a full mechanical turbo for hmmwvs? They have a 6.2 and 6.5 kit. I’d like to see some reviews of it at some point. They are 3 hr from me so maybe a road trip. My friend is a Detroit diesel mechanic and I want him to give his thoughts as well. I wonder if you’d need to stud the heads and if that’s included with their kit. It would be a nice combo with a 700r4 or 4L80

I have personally seen the kit installed on a 6.2. It seems well done throughout with exception of the final exhaust leg. Its an accident waiting to happen. It exits UNDER the frame rail beneath the passenger seat and then goes back out the rear. You will not be offroading with it very long. I am hoping they adjust it. I talked to the guy for quite awhile, and seems pretty knowledgeable from a engine background at least, but the exhaust was terrible.

 

[Banaba1971]

Got to bypass the neutral safety switch.

Hello , I'm new in this forum thinking converting mine to 700r , how it goes with your conversion and and what's performance you get ?

 

[87m998]

Benefits are the engine isn't screaming at 55mph and gearing is a little different.

 

[TOBASH]

I like mine. I went with a 765R4 rebuilt by bowtieoverdrives. Only put a few dozen miles on it BUT I really like it.

 

[Sharecropper]

I like mine. I went with a 765R4 rebuilt by bowtieoverdrives. Only put a few dozen miles on it BUT I really like it.

Hey Sir - how did you adjust the TV cable? Did you adjust it at the bracket or did you install a gauge onto the transmission? Chris at Bowtie recommends using the gauge, however I believe an accurate adjustment can be made at the bracket.

 

[TOBASH]

Hey Sir - how did you adjust the TV cable? Did you adjust it at the bracket or did you install a gauge onto the transmission? Chris at Bowtie recommends using the gauge, however I believe an accurate adjustment can be made at the bracket.

My mechanic who builds rally cars adjusted at the bracket.

 

[Sharecropper]

My mechanic who builds rally cars adjusted at the bracket.

Thanks !

 

[tomelroy]

Hey Sir - how did you adjust the TV cable? Did you adjust it at the bracket or did you install a gauge onto the transmission? Chris at Bowtie recommends using the gauge, however I believe an accurate adjustment can be made at the bracket.

Do both. Make sure you have all the slack out of your throttle cable first, when you are at full throttle on the floor you want full throttle on the injector pump. Once that is done you can adjust the TV cable at the bracket. Just make sure you have zero pull on the TV at idle and full TV at full throttle. Then hook up the gauge and see if you need to do any fine tuning!

 

[Glider]

I just ordered a 700r4 from Bowtie Overdrive. I ordered all parts to mount transfer case directly to trans. From what i understand it will not need crossmember modification or driveshaft changes. I have a question about the trans lockup switch. I found a dual pole brake switch that appears to have 2 separate contacts. im thinking i could run 12v on one pole and 24 on the other by separating the male fitting with 2 wires into 2 male fittings with one for each voltage. Will this work?

Switch , Brake Light ( Dual Lever ) ; Humvee Hummer ; 2540-01-410-8789 12460230 | eBay

12460230, RCSK17810, 7012, 014108789. Switch, Brake Light - Dual.

www.ebay.com

 

[Mogman]

I just ordered a 700r4 from Bowtie Overdrive. I ordered all parts to mount transfer case directly to trans. From what i understand it will not need crossmember modification or driveshaft changes. I have a question about the trans lockup switch. I found a dual pole brake switch that appears to have 2 separate contacts. im thinking i could run 12v on one pole and 24 on the other by separating the male fitting with 2 wires into 2 male fittings with one for each voltage. Will this work?

Switch , Brake Light ( Dual Lever ) ; Humvee Hummer ; 2540-01-410-8789 12460230 | eBay

12460230, RCSK17810, 7012, 014108789. Switch, Brake Light - Dual.

www.ebay.com

I see you decided on the 700R4, I think you will be very happy with it.

 

[Glider]

Thank you Mogman! If you remember I asked about the trans lockup switch in your 6l80 post. I had the 700r4 and the 6l80 parts confused.

 

[TOBASH]

I love my 700R4

 

[Glider]

8 week lead time...ugh

Anyone have input concerning brake switch

 

[Sharecropper]

I love my 700R4

Hey Tobash - I thought you went with a 765R4?

 

[TOBASH]

Hey Tobash - I thought you went with a 765R4?

Same thing with upgraded internals.

 

[MattNC]

8 week lead time...ugh

Anyone have input concerning brake switch

Hey Glider. My 700r4 is going in right now and the shop doing it went the dual switch route you suggested. I’ll ask him more specifics once I get the truck tomorrow. We debated not doing the dual switch, but you need a way to open up the TCC if you hit the brakes on the highway and that’s the easiest way we could figure to go.

 

[Glider]

Great to hear! I ordered a dual switch a few days ago, have a new 4 speed shifter, and have the kit coming. Did you buy yours from bowtie overdrives? If so I'd love to know if you needed any additional parts.