oscaroc

And WOW!! I can turn my comp box off and it feels like i have just as much power as box on 5x5. It idles smoother and 50 rpm's lower, acceleration feels smootheralso.

I can tell i am going to have to start saving for a clutch though because it is going to be hard to keep the foot out of it.

Thanks Don and Bob for super fast delivery i really wasn't expecting the injectors until next week sometime. You guys rock and keep up the good work

Just a quick question, What setting should my comp box be on if i don't have an upgraded clutch and bigger turbo to keep everything intact? Also what turbo and clutch should i be looking to buy in the future?

Justin

JStull

I would say the only setting your box should be on is OFF until you get a clutch. I have driven the southbend clutches and they are awesome. I drove some others that chattered bad and I think southbend is the way to go.

Jason

oscaroc

If it is off does it still have the boost fooler?

mishkaya

Yes it does

oscaroc

What turbo is going to be capable of keeping egt's down and spool quickly? The only other mod power wise would be a ECM. I already have plans for a south bend clutch and turbo i just have to figure out which ones?

Gene007

I am planning on getting a set of the Mach 4's. What are your temps running with and with out the box?

Thanks Gene

duke1n

I love my 4s but the Comp certainly livens them up. I run a B1-2 and on 5x5 I can get it to 1475 before it starts falling back off. I'm also running at 5500' so if you are lower I would think you would run even cooler wit a B1-2. I ran my stock clutch for a long time before it gave up. I now havr a Con FE which works great. A little grabby but nothing horrible. Going to have it on the dyno tomorrow so we'll see

oscaroc

not to sure of my temps yet. I will run the truck this weekend to find out. But i think my clutch is already going with box off. I don't dare turn it on yet.

oscaroc

duke, Did you go with the larger six speed clutch? I would like to know what you dyno.

RowJ

A B1-2 or an HTB2 with a 14 cm housing would work well for both spoolup & EGT's. IMO, you will need at least 40 psi boost with the comp & Mach 4's. 45 psi would be better. These two turbos will give it. With my setup...at 650' elevation, I get stream of smoke (unburn fuel) at full power with anything less than 45 psi.
My egt's run hotter than Duke1n's....with the smaller B-1 turbine housing and a bigger wheel....but easily controlable towing or cruising....unless WOT!

RJ

duke1n

It put down 514 today on a Superflow dyno, which I understand to be stingy. Here is what I didn't expect... on the street with regular Comp, I have seen 38psi & 1475F briefly. Most people were seeing higher boost & egt's on the dyno than on the street. I saw less boost and egt's on the dyno... 33psi & 1325F. How can I make 514hp with those numbers? Several hx40 / smaller nozzled trucks were seeing 45psi and egt's through the roof. I must have landed on a pretty good configuration with Mach4s, B1-2, and a Comp

I did go with the 6sp clutch. Holding so far...

Ben

Duke,

Sweet numbers.......Good job.

oscaroc

Impressive #'s

what could you do to the B1-2 to keep your EGT's lower if possible? 1475 is kind of scary isn't it?

HOHN

I should have stayed around at PDT/GAM to watch you lay down that HP with the Mach 4s.

I was happy with my run


I've heard these injectors are sick with the HP and lack of smoke/EGT.

Yes, 1475 is scary. My truck saw 1500 for the first time on that SuperFlow that tested Duke1n's truck.

jlh

Boondock

**** 1475 isn't anything. I wouldn't run it there much at all but every now and again it should be fine lol. My last run my egts cruised passes 1600 last marking on the guage. I would say it made it to 1800 or so!!! First was around 1400 second was around 1550-1600.

That dyno loads the crap out of the motors wow!!!

Nice #'s dukie!!

I threw down 347 and 812 with the stock clutch