Thanks, That was what I was looking for. I by no means think that you are saying to not buy this product. I think that most people if they read the entire thread think that this is a great new product that is long overdue in the lsx world.

 

Nick...its not my understanding thats important. Its the avg reader. It appears I knew how it worked all along despite statements to the contrary. Since going thru the functions a little closer there has been one post stating that this discussion made things much clearer and I recieved one PM from a person who bought the unit and stated that he was not aware that this is how it was intended to be used. That means there are probably 100 potential buyers out there just as confused that do not post. I am just trying to alleviate that potential confusion. Speaking of confusion. Even the posts you provide as proof that you provided all info leave alot to be desired. See below.

In the above answer you make it sound like the changes may be made without tuning software like HP tuners. Yes you said you can rescale the injectors ( that alludes to the use of tuning software) but its very vague and you have to realize the the avg user here may or may not be able to detrmine exactly what your getting at. First time I read that i knew that there were going to be readers out there that would think ALL the adjustments you allude to could be done solely with the Interface.

hell I was confused with your explanations and it appears I knew how it worked all along.

Also in the above response Matt sais the LS2 has 11-12 degrees available in the stock MAP. Robert sais 7? So which is it? Are you going to leave that up to the end user to determine on there own? I wouldnt know because i dont have access to tuning software for Gto's, F bodies, trucks, regular vettes, ZO6 vettes, LT1 camaros, LT1 vettes, LS2 vehicles etc etc. Does the instruction manual state exactly what years have what timing available? Dont you think knowing wether you have 12 degrees retard available VS 7 or 3 is semi important? I certainly do. Maybe compile a list and post it here? That would probably help each potential customer understand the capabilities on thier application.



The second part of the duscussion, which you never did explain, was that under hot conditions...such as on a 2001 F body...if your IAT are at or over 104 to begin with you will actually only get 2 degrees of retard available with the Interface because the stock table starts at 104 with -1 degree of retard and there are only three available in the stock tune. That was never answered. Granted...thats a small window there...but for us down in Fl or Arizona or Texas it may be a factor.







This discussion IMO has only served to have a better understanding for eveyone involved. IMO that can only be a good thing. I understand this is a brand new product for the masses. You guys have always installed it in house...so to you its second nature. Us dummies out here need to be spoon fed the details.

And although I never thought of this as drama....I think everyone does have a better understanding...and thats the point

Any further discussion between you and I should probably go to PM at this point. But I think the misunderstanding has been resovled.

 

No problem...glad to help. Enjoy the juice!

 

Al,

I understand what you're saying concerning the average user...but did you even click on the second link? You clearly ask if a tuning solution is required for pulling more timing than what is in the stock table. Matt replied, YES! So why drag it out three more pages when your question was answered with that reply? I just don't get it.

Well shame on that customer for not contacting us directly! And shame on you for not forwarding it to the manufacturer of the product! We are here to help people and I certainly do not expect you answering technical questions concerning a item that you do not manufacture.

11 degrees for LS2. Robert did an excellent job explaining things, however the LS2 is capable of pulling 11 degrees. Thank you for your suggestions on the instructions, but this is all clearly laid out in our instruction manual as tables showing how many degrees can be pulled for application specific engines.


Nick

 

Good deal! See 11 on an LS2 is awesome. Thats the kind of stuff we need to know. maybe just post the instructions? Im sure that would clear lots of stuff up.

Have a good day.

 

when the interface is on do you set it to think its a certin temp (to pull varisous abounts of timing) or is it pre set

 

Mine came with the main on/off switch in the off position, as was all the dip switch sets for each feature/function IE: Retard, Delay, Jet HP, Top end.

Now mine did have #6 turned on (the only one of any group of dip sws), and if the main retard dip SW was armed that would equal LS1/LS6 108°, and LS2 90°.

Nick thanks for correcting the 7° to 11°. I knew someone would catch any errors. I should have pulled the table up, lol. I do have access to tables for all of the different models. I will try to get them posted on my site soon, just for reference.

Robert

 

so when you turn it on with the max retard it can do on an 98 ls1 lets say 4*retard, it tells the coumputer that its hotter out side the it realy is, lets say 120*F (lets say 4* max retard on factory tune)
so when the coumputer sees 120*F it pulls 4*
and thats how it pulls timing

so if you go to the 120* iat and tell it to pull more then 4* lets say 7*
when the interface it on it will tell the coumputer its 120* out side and it will pull 7*
or when it realy is 120*f out it will pull 7*

 

i guess the interface has 1*-4* retard for dip switches and it tells the the coumputer its 90*F out for 1* retard 100*F out for 2* retard and so on.

i know the numbers i said are wrong but am i on the right track

 

ok i'm confused between all this reading. So is heat like i see in az going to make a huge diff in how much the device pulls? So if i pull 3 like i can max for my ls1 with the interface it will still pull the 3 degrees if i'm in 115 degree az heat correct?

 

Worst case scenario is that you will have to re work your IAT tables for the shift in temp. Not a huge deal, especially if you or a friend have HP or EFI. If you asked,I bet Harris might even send you a table for you to pull as much timing as you want. I don't know, all this stuff is waaayy too advanced for me. I'm just a C-130 crew chief.

 

Correct. That is how it operates. In the manual there are tables for different applications that show what the Interface needs to be set to in order to pull X amount of timing.


Correct again, if you add 7* in the IAT table in the 120* column it will pull 7* when the N2O system is activated. If you did this you could also set up the other columns to pull other amounts of timing in case you change the jets out.

You are on the right track.

Matt

 

Remember that when the vehicle is moving the IAT is usually lower then what the outside temperature is, and at WOT (the only time you would be using the nitrous system) the IAT is usually at a lower temp then part throttle. An easy way to verify this would be to log your IAT at idle, part throttle and WOT.

Matt

 

For clarification. Here I have my Z06 set to pull 12° through out 158° column. This is for my 300rwhp shot. What I did to the Interface is: Set the Retard dip switches to 15 which corresponds to 158° for the ls1/LS6 and 136° for the ls2. There is a table for selecting target temperature in the directions. So, now when ever the spray/interface is activated it goes directly to column 158° and my car will pull 12° timing no matter what the temp is outside.

The rest of my table remains stock at this time, however, I could select another target temp that won't be used n/a and enter a different amount of timing pull, or make a timing curve (less/more as flow changes g/cly). Then all you need to remember is what dip SW number to set, and bingo multiple/different timing pulls. Now dependent on track conditions, we could select another timing pull for a different combo of stages or jetting , just enter the corresponding dip SW number that you have jotted down.



Robert

 

so lets sat iat are 100* and it pulling 2* N/A, then you have the interface on and set to pull 5*, will it pull 7* total or 5* or?

 

ahh you posted right after i read what hws said, thanks

 

Anyone running the HSW interface on a ls2 gto?

 

Anyone has good results with the HSW interface? Is it user friendly?

I'm thinking about getting the HSW dry plate kit ASAP.

 

To the top, for joshuac5alive, from the Vette forum.
Robert

 

Thanks again Robert.
I will be getting one of these to test out on one of my hidden dry setups. Looks very promising.

Joshua