Recent Posts

11
General Discussion / Re: Help with purchase for build
« Last post by Diesel Newby on March 15, 2019, 04:11:25 PM »
Comment:

The thing about controlling two turbos is the entire logic will have to change, and to do that effectively you're going to have to know or learn some C programming skills..

Thanks for the feedback. Is their someone here could pay to look the new code? Do I simply need ask for a controller with curves for the 3.2 and get studying on C+?
12
General Discussion / Re: Help with purchase for build
« Last post by Rx7man on March 15, 2019, 09:46:51 AM »
I found on my truck the HE351, despite being a nominal 25cm housing at wide open, the choke point is too small a turbine in it with too many blades.. If you went with a 64mm 10 blade I think that would be a happy medium, I have the 67mm 10 blade and that's a bit big honestly (on a 5.9L at about 500 hp)... When I had the 60mm setup I was wide open at about 2400 RPM.. On a smaller engine I think it might work well though as it is.

The thing about controlling two turbos is the entire logic will have to change, and to do that effectively you're going to have to know or learn some C programming skills..
13
General Discussion / Re: Help with purchase for build
« Last post by Diesel Newby on March 14, 2019, 04:48:19 PM »
Question:
How are you going to physically redirect exhaust flow from the primary to the secondary ? Wastegate ?

Answer:
Going to allow exhaust flow from the primary outlet into the secondary inlet....

Comment:
IMHO I think twin is the best application for these VGTs. Single controller, simpler piping. Combined airflow.

Response:

Not challenging that, but I already have the two units mentioned (lets see if we can knock our heads together to make it work)......  I remain open to changing the setup, but i would like to try it before to throwing my hands up. 

I would prefer my next major spend be the controller, if it fails i could reprogram the LBB to work with the single 351ve, unit I can and move on with a new turbo/setup..

14
v1.0 - v1.1 / Re: My life, My coding
« Last post by hakcenter on March 14, 2019, 08:10:47 AM »
I have 7x010s in right now, but Mr Farrell did his magic to my 215 pump. I have 3 notches at the AFC area for the fuel plate. 500/400/300ccs maybe even lower I can't find the paperwork.

I've tried all sorts of settings and my ass dyno says that blasting black is marginally if at all faster than where I have the fuel plate now. I know that the coal absolutely killed my mid range. Right now my truck is up on top of the turbo by 1700rpm and slipping my ceramic clutch in 3rd. Clutch is supposed to be good for 550/1000 /shrug. That's with a 3.55 rear w/ LSD. 265/75/16s

I want to go smaller sticks and open up the pump, maybe it'll get some more timing or something.. or just overall be better. I'm definitely over having SACs that's for sure. The haze bothers me so much.
15
General Discussion / Re: Help with purchase for build
« Last post by hakcenter on March 14, 2019, 07:54:03 AM »
Sorry but you really haven't answered my first question. How are you going to physically redirect exhaust flow from the primary to the secondary ? Wastegate ? Or are you going to allow exhaust flow from the primary outlet into the secondary inlet ? A big concern I have is overrun on the primary. Certainly a 25cm^2 housing is gigantic and I'm not over running my 351 on a 5.9 but I don't have a 551 in compound. That is a toooon of air n power.

IMHO I think twin is the best application for these VGTs. Single controller, simpler piping. Combined airflow. The idea behind compounds is to get a giant turbo going and I get that. But 2 351ve's is like 120lbs/min of airflow....... That's more than a single s400 which is 115lbs/min. Now think you do that with 30-35psi, not 75psi... I just think it's the best route and it's what I plan to do to my vehicle if I ever get the chance.
16
General Discussion / Re: Help with purchase for build
« Last post by Diesel Newby on March 13, 2019, 05:02:35 PM »
Comment:

It sounds like this is something you're going to have to develop yourself to get it to work right...

Response:

I totally agree that this will need alot of adjustments after the initial install and need to be tuned post installation.. (just needed the unit with the basic setup and we will tune from there)
 
Comment:
I don't get the purpose of the brake sensor and the need to dump boost, nor do you really need temp sensors for oil and water on both turbos... the HE351 has a built in temp sensor for the coolant, and that's going to be really close to the oil temperature anyhow... You may want a temp sensor on the compressor outlet to control water flow in an air-to-water intercooler though.

1. The brake sensor was meant to respond to hard a beak situation...  (you never know which idiot will swing out on you)

2. The air temp sensor will be used for the water to air cooler (was just hoping not have to run it on full all the time or manually adjust it).

3. Thanks for the update on turbo temp sensor and the oil.... (first time working with VGTs so forgot that)

4. Funny you mentioned the hx35, I was looking for one but ran into the he551v at a steal......  If i cant get the 351 to high it up i will sell back or keep it for later
    project (the guy almost gave it away)  I really hope we can get it up though

...............THANKS FOR ALL THE FEEDBACK SO FAR...........

17
General Discussion / Re: Help with purchase for build
« Last post by Rx7man on March 13, 2019, 02:02:01 PM »
Honestly I think these turbos would be too big for a 3.2L diesel, especially the HE551!... If anything I'd say go with a smaller turbo, perhaps an HX35 for the small, and then maybe use an upgraded HE351 for the low pressure
18
General Discussion / Re: Help with purchase for build
« Last post by Rx7man on March 13, 2019, 02:00:15 PM »
It sounds like this is something you're going to have to develop yourself to get it to work right...

I don't get the purpose of the brake sensor and the need to dump boost, nor do you really need temp sensors for oil and water on both turbos... the HE351 has a built in temp sensor for the coolant, and that's going to be really close to the oil temperature anyhow... You may want a temp sensor on the compressor outlet to control water flow in an air-to-water intercooler though.
19
General Discussion / Re: Help with purchase for build
« Last post by Diesel Newby on March 12, 2019, 08:32:39 AM »
Thanks for responding...

Question
How do you intend to redirect exhaust from the primary to the secondary ?

Answer
After the quick spool, the primary would  use the boost reading from the sensor placed at its intake to slowly open up the vines to allow excess to pass as boost builds, due to the secondary turbo. The secondary will open in response to the preset boost pressure on actuator. (reading will be taken from a sensor behind the primary turbo)


example/setting 1:

351ve maintains 3 psi at idle, quickly spools to 35 psi at the intake when accelerating (while lighting up the 551v), then then backs off based on pre-boost pressure (if pre-boost is 10 psi, 351 adjusts/works less to keep final reading to intake at 35 psi). The system should also do the reverse when the secondary is loosing boost, but no break has been applied.

However then the he551v reaches 15 psi the 351ve changes to simply doubling whatever it reads on the incoming sensors without creating a bottle neck, the rest with be controlled mechanically.

I hope that helps to clarify my intentions....
20
v1.0 - v1.1 / Re: My life, My coding
« Last post by Rx7man on March 11, 2019, 11:58:38 PM »
what sticks do you have?  5x16 apparently work really well with the VE pump... I was thinking of 6x13's but I can't find them in VCO. 

Put a 67mm hot and cold side on your huffer and you'll see why.. 400ish HP is just blah now... Going to do 191 DV's as well.. got a set for cheap