hypertech settings

[regalniz]

what do you hypertech users have your various settings at? i would really like to know what the best shiftpoints are. also i would like to know what temp the fan should come on. i have the 160 powerstat. i also live in las vegas. i would like to keep the car cool as possible. any other advice would be much appreciated. thanks dudes.

 

[Corvette-Pilot]

Good question !
I am in debate about buying one of these.
Is it worth the cost?

I also heard there is some sort of computer program you can use with a laptop?

 

[vettn94]

if your car is stock then I would leave the shift points alone.
As far as fan temps go, if you choose to use the Hypertech Power Tuning Combination (with the 160 Tstat) the fans will turn on at 172F and off at 165F.
If you choose to do the Custom Power Tuning Combination (with the 160 Tstat) then you can have the fans come on at 192F and off at 185F.

I am using the Custom settings, I do not have the Engine Tuning selected, only the fan temps, Vehicle top speed, Rear Axle, and Shift Firmness settings.

Corvette Pilot,
all depends what your plans are, if you're going to keep the car close to stock or just plan on minor bolt ons then the Programmer will work fine for you, especially if you don't already have a laptop. You can usually pick up a Hypertech used fairly cheap, I got mine for $150.
If you plan on doing more than just simple bolt ons, things like heads, cam, etc. you might want to look into LT1 Edit. The program will run you around $200, plus another $90 for a cable. Scanning software is also extra. You will probably end up investing a little more than you would for the Hypertech, if you already have a laptop that is, but will have the ability to do more.
With LT1 Edit if you don't know what you're doing you will also have the ability to do some serious damage as well.

 

[regalniz]

ok. i will leave the shift points alone. now concerning the engine tuning, if i skip it and go straight to the custom setup, will i still get the "optimized spark" and "fuel tuning"?

 

[Corvette-Pilot]

Corvette Pilot,
all depends what your plans are, .....
if you already have a laptop that is, but will have the ability to do more.
With LT1 Edit if you don't know what you're doing you will also have the ability to do some serious damage as well.

:eek :eek
I have the laptop but have no plans on serious changes or damage (I hope).

Just hoped the PC way would have been cheaper than Hypertech? Right now it is just for the fans and a possible gear change this summer.

Thanks for the info vettn94 !

 

[vettn94]

ok. i will leave the shift points alone. now concerning the engine tuning, if i skip it and go straight to the custom setup, will i still get the "optimized spark" and "fuel tuning"?

Yes you can still select that option.
What gear are you planning on and what gear do you have now ?

 

[vettn94]

Just hoped the PC way would have been cheaper than Hypertech? Right now it is just for the fans and a possible gear change this summer.

Here is a couple links:
www.carputing.com
www.lt1edit.com
www.lt1.net/editor/
www.diy-efi.org/gmecm/papers/tunetip.html

Since you already have a laptop you might want to consider
LT1 Edit. The cost is going to be about the same as the Hypertech but it will worth the investment for two reasons,
#1 with the additional software which comes at a minimal cost you will have the ability to scan for codes as well as record runs at the track which could be very helpful tuning the car.
Second, later on if you decide to continue modifying beyond the gear and simple bolts ons you will be able to tune the car.

 

[regalniz]

Yes you can still select that option.
What gear are you planning on and what gear do you have now ?

i have the stock 3.07's. i hoping to work a lot of over time this summer and get some 3.54's. however some people tell me it wont make a difference and get 3.73's. others tell me 3.54's are plenty. i do a lot of hiway driving out here in vegas. mostly between 70-80 mph. so i dont want to go too high. will 3.73 it in the stock diff?

 

[vettn94]

a 3.73 will fit in the Dana 36.
Since you do alot of highway driving you might want to stick with the 3.54. I don't know, talk to some people with 3.73's who also do alot of highway drivingand see what they have to say.
I would think 3.73's would still be pretty tolerable on the highway.
I don't think you're going to see that big of a gain going from 3.07 to 3.54 but I'm sure it will help some.
I went from a 2.59 to a 3.54 and saw my ET & MPH go from 13.82@101 to 13.23@105.91 in the 1/4 mile.
good luck

 

[regalniz]

thanks for all your help. ill post when i install the settings.

 

[oldace84]

I think the best thing is to read the instruction's....Don't you???
I mean what thermostat is recomended...etc...etc....etc...
Thats how I follow it....
Just my feelings....
tony

 

[Alex D]

I wouldn't go with higher gears if you travel on the interstate a lot.....3.73s will give you absolutely nothing over 3.07s in everyday driving except worse gas mileage......now if you are a seroius racer and do alot of strip, it may be a different story.....if you want a little more kick, I would install a slightly higher stall torque converter and leave the axle ratio alone.....besides the pinion on the dana 36 gets pretty flimsy with 3.73s......you may run into problems there.........

i have the stock 3.07's. i hoping to work a lot of over time this summer and get some 3.54's. however some people tell me it wont make a difference and get 3.73's. others tell me 3.54's are plenty. i do a lot of hiway driving out here in vegas. mostly between 70-80 mph. so i dont want to go too high. will 3.73 it in the stock diff?

 

[vettered91]

What about the settings?

Hey Josh!


Any news about the settings?

How did it go? Because I just re- programmed mine and it seems
to work ok but I need to do more tests.

George.

 

[regalniz]

oops

sorry. i forgot i was supposed to post. ok here we go. in addition to the power tuning, (fans on early, air/fuel/timing adjustments) i opted for the harder shift firmness. when it came to the shift points, i added 1 level for the 1-2 shift and 2-3 shift. i thought i would play it safe. i went to the track and ran a 13.8 at 99 mph. now im no john force. i still need practice when it comes to launching. tires spin relentlessly so i just feather it till the 60 foot mark then floor it. out here in vegas they say the altitude plays a factor so i should shave 1 or 2 tenths off. im reluctant to go any higher with the shift points but if anybody has had good results then ill try it. let me know what changes you made.

 

[Corvette-Pilot]

With the Hypertech, can't you take it to the track and make changes between runs? Or is it a pain to do?

 

[regalniz]

yea you can. the problem is you have to be REAL consistant with your launching, ie tire spin. if your not, you wont know if the latest change you made was beneficial or not. second, i go to the track once in a blue moon. im not looking to beat on my car just to get a couple of tenths. i jusy wanted to know where i stand with the rest of the world.

 

[vettered91]

"im not looking to beat on my car just to get a couple of tenths"

I think you are right! That´s what I meant when I said "need more tests", down here the track opens only Saturdays & Sundays and some times it is so full you have to wait one hour for each launching. For the full programming mine took about 25 minutes (I took every option), but after that the only thing I need to test is the shift points just to know I am getting the best advantage of the programmer & my vette. (it could take many launchings)

I raced there my L98 just 5 times to know more about some little improvements that have made, and I hope to do the same with the LT1 (its my every day car) whith as minimum launches as I can.

Lately I have been thinking to take it for dino testing before I make any more changes in shifting points.

Anyway I´ll post as soon as I have News!

 

[Alex D]

I totally agree !!! If you really want to make a difference, leave the 3.07 cogs in there, save the money and install a higher than stock stall converter and you'll get the improvements plus retain driveability......I would not want any higher gears than the 3.07 I have.......I turn 2,500 rpm when going 80mph.....don't wanna go higher than that on long trips...........a 2,400 - 3,000 rpm stall would do the ticket

a 3.73 will fit in the Dana 36.
Since you do alot of highway driving you might want to stick with the 3.54. I don't know, talk to some people with 3.73's who also do alot of highway drivingand see what they have to say.
I would think 3.73's would still be pretty tolerable on the highway.
I don't think you're going to see that big of a gain going from 3.07 to 3.54 but I'm sure it will help some.
I went from a 2.59 to a 3.54 and saw my ET & MPH go from 13.82@101 to 13.23@105.91 in the 1/4 mile.
good luck

 

[regalniz]

is a aftermarket stall converter practical for everyday driving? i heard no. i would think it would launch too hard if i was to accelertate normally from a red light. what about flooring it? i get too much tire spin already. if im wrong let me know. i was always a little confused when it came to stall converters.