Mechanical 6v92t silver, 70 injectors too small?

[Darkspeed]

I have a mechanical 6v92t Silver with 70 size injectors. Are the injectors too small for spirited highway driving?

I have not installed the engine yet but it will be on a 4106 bus , v730 , 470 rev tires.

I know all the 6v92's are advanced timing, so do I need to just put bigger injectors, or also upgrade the turbo size?

What is the ideal setup? 90's? Bigger Turbo?

[TomC]

You'll be at 263hp and 780lb/ft torque. About between a 6-71 and 8V-71 in performance. With proper turbo and blower, the 6V-92TA can put out 350hp and 1050lb/ft torque. Good Luck, TomC

[Darkspeed]

You'll be at 263hp and 780lb/ft torque. About between a 6-71 and 8V-71 in performance. With proper turbo and blower, the 6V-92TA can put out 350hp and 1050lb/ft torque. Good Luck, TomC

Thanks Tom,

Is there a chart of recommended injector / turbo combinations for the 6v92t?

[Darkspeed]

Found this from an old post:

There are two turbo configurations for the 350 HP 6V92.
The first is a TV7511 with a cold A/R of .75 and hot A/R of 1.08 and the second is a TV7512 with a cold A/R of .75 and hot A/R of 1.23.
Based on what my contact showed for a truck version with 9G90 injectors, I went with the TV7511 version.
That is DD part number 8927026 (Garrett number 466572-1)

[luvrbus]

70 what injectors ? 92 series are not advanced timing the timing is in the injectors,there are charts in the 92 manual for highway use, you need the blower number also to match the turbo and injectors.

[wg4t50]

Most generators use interface the 6V-92 ar rated at 450 hp @ 1800 rpm, Urbo DDA 2350447,  Garrett VJO201L, No Injector number in my notes, would use nothing less than the 9200 injector @ 1.484.  Then enjoy.
Dave  M

[Don Fairchild]

I would think that the injectors are 7G70's I would like them if you don't trade them in. I like 9A98's better than the 9200, different tip and plunger, that gives them a better pop pressure better fuel atomization better burn, same fuel flow, Set them at 1.460 the will smoke less and get just a tick better fuel millage. You need to know what camshafts, blower ( 100% V 86%) then you can size injectors and turbo for your engine. with the 4106 and V730 you will be turning around 2000-2100 rpm at highway speeds ( no fuel millage but a lot of power and heat ) how will you keep it cool. In a 4106 I would not go over a 9G90 with a TV7512 or TV7513 with a 1.08 hot housing.   I have several never used 7512's with .96 HH's

Don

[luvrbus]

I have a set of 7G70's I will bring Don lol I was going to give to the other Don at Quality Fuel Injectors ? you get the job at Williams 

[wg4t50]

Talk about old aging process, I now remember that I must have forgotten some details, like the timing for the 9200, Know we were happy with them. Been about 10 yrs since was into the last DDC, a 8V-92, very strong runner, Have played so many timing pin settings, I've forgotten exactly which were used, But very joyful messing with most folks on the up grades.  The ISM500 in light coach is not near.
Dave M

[HB of CJ]

Excellent info and thank you.  HB

[Darkspeed]

Thank you for the help!

I will check the injector numbers in the morning..

My engine does not have any data plates on it but I do have the serial number.

Is there a way to get the build info from that?

It does have the high capacity radiator from what I was told, 7 pass?

[HB of CJ]

How much power can the V730 handle?  Torque?  What is the weak link inside/outside the transmission?  Is an upgrade possible?  Is there anyway to up the road speed, (reducing the rpm) with the V730/rear end combination?  A really hot 6V92TI sounds neat, but might there be limitations?  Could a high HP/Torque Detroit be used if the driver kept his foot out of it except in top gear?  Is there a gadget to limit torque in the lower gears?  Lots of questions because I do not know.   Thanks.  HB

I am asking because this very set of questions came up at lunch this week.  With the Cummings old big cam series, there was/is a gadget called a duel power valve that worked with the injector pump.  It could be set or adjusted limiting torque in lower gears of otherwise marginal clutches trannies, U joints, etc..  A quick example would be a hot 444hp/1450 torque Big Cam running through a RTO910 Roadranger.  The torque could be limited to about 950 ft pounds in the low side of the transmission.

[luvrbus]

The V730 handles a 6V92 without problems it uses the same internal parts clutches as a 740 only 3 speeds

[Darkspeed]

So I found a serial number database that says my engine was a 1983 year but Im not sure where to look up the build info?

[Darkspeed]

Turbo says Air Research 5103760 / LEO175 which i cross referenced as a TV7101

Fan is eight blade.