most powerful 6.2 owner here

[detroitdiesel]

Hi, new to the form. I was just wondering what kind of power outputs you guys have with your 6.2's. My 6.2 is a 1986 GMC 1/2 with J code pump (nearly turned up all the way), and intake. Also, It has a banks turbo kit that makes 10 PSI. With the turbo it's rated at 220HP and 360-370 torque. with the pump, probably 250, and 400 ish.

 

[towcat]

Welcome to the site!
There's one guy here "dieseldummy" who put out some pretty nutty numbers with his truck. I am just plain happy that the 6.2/6.5's I babysit stays out of the shop other than PM work. With the BS in the sandbox going on, I don't have access to good used motors anymore and finding a rebuildable one(6.5) is darn near next to impossible. As long as the motors don't overheat, we're in good shape and I like to keep it that way. I am having a little fun though, I am shoehorning a '93 6.5td into a '83 chassis with the intention of getting as much MPG out of the darn thing.

 

[dieseldummy]

Like towcat mentions I push my 6.2/6.5 to the limit... Probably near 275-300 hp. (maxed out 6.5 pump) A friend of mine has a drag race pickup that is well over 300 hp and runs in the 14's in the 1/4 mile.

 

[Mike]

I am having a little fun though, I am shoehorning a '93 6.5td into a '83 chassis with the intention of getting as much MPG out of the darn thing.

Speaking of that..... has anybody ever dropped one in an S-10 frame?

 

[towcat]

Speaking of that..... has anybody ever dropped one in an S-10 frame?

homer-
i haven't even considered it. It should be do-able though. a 4.3 is a SBC with two nuts cut off. I've seen SBC's crammed into s-10's, so a diesel is not that big of a stretch. I prolly can get away with a swap like that in TX, but no so in kali. The smog police would be saying no-go.

 

[detroitdiesel]

Dieseldummy, what kinds of mods do you have?

 

[Mike]

homer-
i haven't even considered it. It should be do-able though. a 4.3 is a SBC with two nuts cut off. I've seen SBC's crammed into s-10's, so a diesel is not that big of a stretch. I prolly can get away with a swap like that in TX, but no so in kali. The smog police would be saying no-go.

Thats why I asked Cal, I had an 89 S-10 w/the 4.3 and I have seen numerous BBC's stuffed into the S-10 platform, I think a 6.5 would be sweet under the hood of a mini-chev.

 

[dieseldummy]

Might make for a fun rice killer... The 6.5 will fit most anywhere a SBC will so I'm sure it could be done.

My 6.2/6.5 combo wears a Holset for a turbo and a "special" 6.5 injection pump. It's intercooled, has low compression pistons and a main girdle kit. Nothing to special, but it's always fun to drive. Even with the Dmax around...

 

[detroitdiesel]

dieseldummy, what kind of 1/4 mile times do you run with that truck?

 

[dieseldummy]

Dunno... never ran it at the track. It pulls a sled pretty decent though!

 

[dieseldummy]

I have some dyno numbers finally after all these years. Dynoed on a superflow in the cold near the end of a long dyno day. Couldn't get a good tach signal to record tq, but did get a couple of runs that recorded hp. I'm assuming that the lack of tach signal didn't mess with hp readings?? It made around 204hp at the rear wheels. I put the numbers into an excel spreadsheet to figure tq, made around 440 ftlbs.

I guess that little hy-35 is choking it up on the upper end, but really does make good tq down low. Figure drivetrain loss is high with a sick auto trans and cold 80w-90 in the rearend and it still comes out pretty good.

Alot of people complained that they were down on power, but I'd guess they're not far off in my case.

 

[FordGuy100]

Dang, those are some pretty respectible numbers at the rear wheels. I wanna strap mine onto a dyno and see what it does, but I'm sure its not going to be close to 204rwhp like yours put down.

 

[Denver95327]

Does anyone know how to get more power out of a 6.2 chevy with a banks sidwinder turbo already installed. Looking for some fuel mods, want a little black smoke like the pic of diesel dummy. thanks

 

[FordGuy100]

How much have you turned up the pump? I think they use DB2 pumps just like IH IP's right?

 

[Denver95327]

I have no idea, only owned truck about 6 months, I know absolutely nothing about these 6.2's....this truck is an 83 How do you turn the pump up? I'm used to the cummins, not these ol 6.2s Thanks