Who has never bought a brand new saw?

Arborist Forum

Help Support Arborist Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
the 97 98's were the strongest, and they had some different parts in the pumps... I'm looking for one right now actually
 
don't know where your getting all this performance is better out of the mechanical **** man LOL they done away with them for a reason. sure it's really gay when an electronic pump goes but they are far more reliable then a mechanical pump. only ones i ever seen go really were run dry.
I'm talking 600 hp plus. The common rail do it but not as easy. Need 2 pumps or a huge modded one. Then drive ability tends to suffer over 600 hp on any of them.
 
600hp on any engine designed for about 200 hp is going to start to have driveability issues... One of the Rx7's I worked on made 875 RWHP @ 50 PSI (race gas).. it was a beast, and it was daily driven, but was it 'driver friendly'.. certainly not. My car was 400 rwhp and that was very touchy... diesels of course don't get as touchy as quickly, they have so much more rotating mass they're pretty forgiving that way... turbo lag is always a big factor on any big power machine, you gotta wait and wait for it, and watch out when it hits.. .it's fun as heck when you know what you're doing.
 
My truck would get 23 mpg and at 40mph in 4th gear it would blow 35-14.50-20's off. Was all stock but the pump,injectors, and clutch. I got a duramax that's a animal but nothing like the tourqe of that 12 valve I mean anytime any gear u could get rid of the tires. I've had several dodges up to a 2003 model and all of them were good runners but not like the 12 valve and with several less mpg. I gotta get another one.
 
600hp on any engine designed for about 200 hp is going to start to have driveability issues... One of the Rx7's I worked on made 875 RWHP @ 50 PSI (race gas).. it was a beast, and it was daily driven, but was it 'driver friendly'.. certainly not. My car was 400 rwhp and that was very touchy... diesels of course don't get as touchy as quickly, they have so much more rotating mass they're pretty forgiving that way... turbo lag is always a big factor on any big power machine, you gotta wait and wait for it, and watch out when it hits.. .it's fun as heck when you know what you're doing.
My brother has a little trunk car fox body with a 6.0 and a large frame 88, bone Stock ls and 20psi made 900 at the tires and on e85 and we couldn't get it to hook on the chassis dyno. It makes me pass out or puke. It's fun to pass on the interstate I. A ugly old Mustang and pull it back in 2nd and spool it up at 80mph and blow 10.5 drag radials off, freeks people out. Runs low 5's in the 1/8 and gets over 20mph with the air on. Sounds like a old 5 litre till u get on the skinny pedal!
 
The car I was talking about making 875 RWHP was a 1.3L, not 5L... I think it was in the 9's on the 1/4 mile
 
His Mustang has a bone Stock 100000 mile 6.0 out of a gmc truck. It's impressive that them ls Chevy motors will take 20psi and make a 1000 hp completely stock and keep on ticking. Go to the drag strip and there will b a pile of fox body's and all of them that are fast will have a Chevy motor. 200 shot will bust a ford block into much less 20lb of boost. I think it's kool to spend a couple thousand dollars and make 900 at the tires. Watched a drag radial car with a basically stock 5.3 and a single turbo go 4.60 in the 1\8, it takes a mountain of money to make any other setup run in the 4's. There's a twin turbo vette with a 632 inch Chevy thar runs 450's but also he has 50000 in the motor my brothers old car cost about 4000 total that's including the car and I think with the right tune it will b in the 4's.
 
I prefer mechanical injection systems just because I can rework them (change the fuel curve) and they are reliable when I go bush. However, I finally had to bite the bullet and get a new truck (3lt) with all the electronic crap (common rail).

I still was able to rework the computer inputs a bit to get better power and fuel economy. As far as turbo lag, the computer actually has a delay built into it in order to handle the variable vane turbo technology. Some of the guys will rework the computer to eliminate the delay, but if you are idling at 800 rpm and step on the pedal, you will have 20+ lbs of boost by 1200 rpm and instant wheel spin. That doesn't work so well for an off-road vehicle, so I passed on that mod.

It has taken a year for the new technology to grow on me, but I'm happy with it now - unless it craps out on me during a stream crossing.
 
The truth is a lot of these big motors are terrible underperformers without the turbos, especially the post 1972 ones until relatively recently

Here is a car I worked on at a specialty shop, it was in a fairly mild tune, 700ish hp, 3 rotor (2.1L)... a little bling for me but some freaky kinda power
 
I'm talking 600 hp plus. The common rail do it but not as easy. Need 2 pumps or a huge modded one. Then drive ability tends to suffer over 600 hp on any of them.

i got more then a few buddies running stock pumps on all the big 3 diesels pushing well over 600hp. heck, even running 60% over injectors on the stock pump. how many diesels have you built mike? i haven't built any but have done a few simple mods on mine. one of my buddies has a cummins with over 1000hp LOL. as far as i know it's running the stock pump as well but i only assume that as i never heard him say he replaced or modded the pump. always talking about that turbo though. think he mentioned areola turbo or some ****. i don't even know why he owns it. it's always just sitting in his shop and he drives it around his property once in a while. he lives close to walmart so he visits the parking lot once in a while as well. it has a 6 speed and is a ****'n beast. 1st skipping 2-5 right to 6th no problem LOL.i've seen him get the front tires off the ground in second gear. i'm not into that crazy ****. makes a truck unusable. i got a buddy who actually runs a 700hp duramax on the street. i don't even think it's legal but he did all the work himself so kinda hides what's been done. when i get some cash flow happening i wanna make mine plus 600hp as they launch in any gear at any speed at that HP. 1000is just overdoing it. i was gonna do it last year but my buddy told me i need to beef up the tranny first. i will say again, they done away with the mechanical pump for a reason ;) the mechanical pump being lubed by engine oil is an invalid arguement as the electronic pumps have all that mechanical **** that was lubed by engine oil eliminated. i like the new diesels. that's not to say everyone does. i literally hated diesels until the duramax came out. i didn't even really care for the 7.3 back then. i have way more respect for it now though. one heck of a work horse it is.
 
I'm on my 13 th truck. I havent built but one since i got married Done a lot of tuning on the dinosaurs since no one seems to know how to tune the pumps any more. Done several to over 500 hp and one to 600. That was my daily drivers as well as hooking to sleds. It was a 07 5.9. Has a 97 that would spin 4-4500 rpm. Never had a data logger to really know what it was turning. Cam, fly cut pistons, lower compression, oversized valves, fire ringed block, and a few other things I'm probably forgetting this morning.

There's no way the stock pump on a common rail is pushing 1k hp unless he's got 2 stock ones or 500 hp of nitrous. I still was draining the rail with a modded one and 175 hp injectors. A friend had an 08 6.7 with dual pumps and compounds turbos for a while until he went back to a big single. I think he was 750-800.

Duramax with a lift pump a good tune can bump 600 but that's the limit of the pump and rods. I wanted to. Build a 7.1 stroker duramax just to do something different but man its expensive. $10k for the crank and rods alone. The 7.3 is a good solid engine but the same boat for making crazy power. They need a gold mine or someone really in love with the Ford like a stihl head is
 
Here's the 07 5.9. Leaving the line in 4th gear low range. 750 hp clutch lasted 26k miles[emoji17] most of my pictures and videos were before I liked all this technology. I didn't get a smart phone til 2012.

 
Is this thread still about chainsaws?

I've never bought a brand new saw. Two I have were filled with mix & bar oil, and ran for a VERY short time by the original owners. Probably much less time than if a dealer let a customer demo a saw. But that means they were technically used.
 
sled pulling, like just about any motorsport now requires VERY deep pockets... it's kinda too bad.
What got me was pulling one class with trailered in trucks pulling against guys with a programmer and clutch. When they started letting that stuff in I got fed up with it. Now they run 2 classes semi local to me. One guy was pulling a mod class truck in the street class. 5-6k rpm p pump against the street trucks. 7.1 stroked duramax and a few others with $100k in the trucks easy.
 
I thought sled pulling was rated by turbo size?... a 60mm turbo isn't ever going to flow enough for 6000 RPM, so that eliminates him from that class? I think it's a fair way to determine class. I guess other places have different rules.
 

Latest posts

Back
Top