ImportsRsloths

87 Corvette 350 TPI Hypertech 5 Speed Manual Part# 127083 Serial # 8090599 Competition Chip

INTO a
88 Camaro 350 TPI Hypertech 5 speed Manual

Grim Reaper

I cannot say for sure on 1987s, but on later year models, the Corvette's have an Oil Temp Sensor which is not on the F-bodies. Installing a later memcal from a Vette on a later model F-body will cause an SES code due to the Oil Temp sensor not being present.

Plug it in and try it out. If you get an SES code, then you know that it is most likely due to the lack of an Oil Temp Sensor. If you don't get an SES code, then it is working fine. May not be optimal, but it is working.

Frankly, for MAF cars, people with autos are finding the ARAP bin from the 1989 cars to be the best alternative. It still needs to be tweaked, but works very well. Some have also found that it is better (for manual cars), to take the data from the various tables on the ARAP BIN and plug them into a 1989 Manual bin.

ImportsRsloths

well i have an 89 5 speed hypertech chip that will be going in my 88.... i was wondering if the vette one would be better. Do you know if the 89 hypertech chip will have the VATS crap on it??? Also i know you guys hate hypertech **** but i dont have the funds to get the programming stuff to make my own but give me a break im buying a $3000 engine and paid 5000 for the car

HighHopes85

I don't want to sound like a pessimist, but that could end up being the demise of your expensive engine. Let's just say this. I swapped a healthier engine into my 85 with MAF setup. My burnoff was shot so my MAF was actually bad and I didn't know it. By the time I actually understood what BLM's were, I realized that I was about 30-35% over-fueled across the board. This toasted me Random T cat, melted all my wire conduit because of the extra exhaust heat (and glowing headers), totally carboned up my manifold/IAC/TB and probably did quite a bit of damage to my rings/cyl's because of all the excess fuel.

Oh, and the moral to the story? The hypertech chip didn't help it out for squat. I make the mistakes so you don't have to! -Matt-

Grim Reaper

So what is another $250.00 to get all the equipment plus the software necessary?

None of those "off-the-shelf" chips do much of anything. All the do is add a couple degrees of spark advance in the mid-range (which your knock retard generally takes back), locks your TCC a few mph higher and if it is designed for a 160* T-stat, turns your fans on sooner.

It's your money...but if you want to risk a $3,000 engine to save $250, go for it.

As for VATS, yes, most of the TPI BINS that have seen for 1989 has VATS, so you will have to get the eprom burning equipment to turn it off.

Mark_ZZ3

Ok ... OLD posting I know. But I came across this Hipertech prom in a computer I got. They listed it as the competition prom ... and stopped selling it due to EPA.

I pulled the BIN out more or less to see if the chip would read ... and it does. It is a mask 32. The programming is down right weird. It makes me wonder if they didn't re-write some of the code as the table look ups don't always make sense. I've tried a number of different XDF, but no luck with any better reading. I've tried to re-read it. Maybe I'll have to do the old re-boot and start clean. Lots of things make sense, but the obvious tuning things are odd. Spark advance is sometimes like 70. And the MAF tables have some columns down low.

Has anyone else dissected one of these?

RBob

iTrader: (1)

One thing to do is to check the check-sum in the BIN. See if it matches the BIN data that you read. If not then the PROM didn't read properly.

RBob.

Mark_ZZ3

hmm. not much luck. If I read the prom. Open in Tunerpro. And save it. The Checksum changes. It should be the same?

The mask is 32. I've tried a 32 mask and 32B mask ... the PROM ID changes.

Something is up. Maybe PROM is bad. Or I 'm just tired.

Mark.

RBob

iTrader: (1)

Yes, should be the same. Since it changed the data isn't correct.

Read the PROM multiple times saving to a different file each time. Wiggle the PROM in the socket between each read. Then check each one to see if the checksum is OK.

RBob.

MrWillys

The spark mapping in the aluminum headed Corvettes is much greater than cast iron headed F-bodies and I would not recommend using it unless you want to make your knock sensor work overtime. The fable about using ARAP in mass air cars is just that, a fable. The high vacuum can be as high as 47 degrees vs AUJP or APYN's 38 to 40. on occasion I do use ARAP for cast iron I plug in an appropriate spark map. Now, back to selling EBL on a .org site.

RBob

iTrader: (1)

Nothing like responding to a question from 15 years ago. I'd think that he's got it figured out by now.

Fable, that is funny. Even the OP from 15 years ago is building a new engine. Good possibility that it has aluminum heads. What you miss is that ARAP has the best MAF tables.

Thank you for your continuing support.

RBob.

MrWillys

I didn't bring it TTT. Here on the left is ARAP and Middle is APYN and on the right is what I would use in the ARAP for a cast iron headed or a cammed car. Although with a cam I'd add on the upper left at idle. This is a discussion forum?

RBob

iTrader: (1)

It isn't discussion when you take jabs at the moderators and other members here....

Your site is not available to the public, that is why the image doesn't show up.

RBob.

MrWillys

But do you get the differences in using ARAP on a stock F-Body and why I disagree with its use?
You have shut me down on several occasions from helping others and so it's a deserved jab. I enjoy it and it keeps me busy in retirement.

RBob

iTrader: (1)

Shut down for breaking forum rules, or do they not apply to you?

With that attitude you won't be around for very long.

RBob.