Anyone heard of Harris Performance chips? I'm looking for a chip that will work with a mild cam, 10:1 compression and improved exhaust. I'm having trouble finding anyone that will burn a custom chip for an 85. This company has two different versions running from $104 to $144.

I've read many of the posts and websites regarding how to burn your own and I am frankly overwhelmed by the hardware/software and knowledge required.

 

You are not going to get a good set up for your car with a chip off the shelf. You need to do some data logging as the car runs from idle to WOT. With the change in your cam this is vital information that need to be part of the table in your chip. There are a couple of guys on the Forum that burn custom chips for your car via mail...and update the chip as you try them out. Again...the data logging is vital for feed back on how the chip is controlling you engine.

 

I would like to here who or how you end up dealing with this as Im in the middle of installing a mild 383 stroker in my wifes 85. I will need to do the same for mine. If you don't mind letting me know what you end up doing. I think this Harris Performance sales on Ebay also. There is someone on Ebay selling chips for the same prices that you quoted.
Thanks, Bob

 

I did find it on Ebay. I think I'll give them a call and see if they tell me more about the changes they make. I realize mass produced chips are not a perfect fit for all mods, but the description seems to fit my application and the price is reasonable. This seller has a 100% rating.

 

I have looked into data logging hardware/software. As far as I can tell, Moates has a pretty good deal.

Unfortunately, the cost of equipment has gone up since many of the threads on this forum were written. A complete package to scan, edit and burn is approaching $500. The learning curve is steep. I have not given up on doing this myself, but it is overwhelming.

 

Try your post over on Scan and Tune. One of the forum members does do this reprogramming tho I cant remember who. I also have an 85 and after installing my stroker, I will have him do it. You may have to send it back to him for tweaks but it seems to be the best solution to have something custom tuned to what you have and someone who cares if they do it right or not.

 

85 will take care of its self no tuning needed.

 

The memeber who offered help with the 85 is "77-85". You might give him a hollar and see what he says. Hope it helps!

 

The ECM will be able to handle many modifications without a new chip, but unless the cam you put in is VERY close to the stock cam....you will need to modify the chip.

I know that you can purchase all the things to burn your own chip. BUT I am with you....the learning curve is much too high for me. I would rather use someone that I have faith in and knows what he is doing. I am somewhat lucky...TJ Wong is ONLY a 10 hour drive.... North....but he does know his Corvettes. He does Dyno tuning.

Since it sounds like you don't have anyone close. You need to get a mail order thru someone that can make changes on data logging feedback you can give them. There is software out there that can data log for you. Capture the data and forward it to your chip maker.

Good Luck.

 

who and where is this TJ Wong fellow? I want a chip for mine too eventually

 

I think you are right on the money regarding the cam. Its a Competition Cam 264AH grind. According to Competition it is meant for a TPI engine with a modified chip. Between the cam, the compression and free flowing exhaust, I have an engine running too lean when not at WOT. I'll check the forum for someone who is willing to help with a burn.

Thanks for the help. It has been tough sorting through the mods that someone else made.

 

I'll try to hunt him down. Thanks for your help.

 

I put a built motor in my 85.other than hunting a little at idle the stock chip worked fine.I have a Snap 0n scan tool and the parameters seemed fine .Was it optimum?No but it worked o.k.T.J. Wong is a pretty Knowledgeable tuner.I would contact him first before I went the E-Bay route.

 

TJ Wong is a Forum member and has a great shop in Vancouver Washington. He often posts in the PNW section.

I am not sure if he does mail order chips.

 

Since you are in Santa Maria I know two people that can burn custom chips for the 85's and both of them have Horiba A/F meters and data loggers. One is in Fresno and the other is near Atascadero. You can PM me for their contact info.

 

Several members have stated they are interested in finding someone that tunes 85 chips. I found this gentleman via his Ebay store. I inquired about having him burn a chip for my 85. I gave him the details of my build. To my amazement, he recommended I leave the stock chip in and instead raise fuel pressure. This is due to higher compression with cast iron heads. His chip would have advanced timing and caused a ping problem. His honesty astounded me. His knowledge of the 85 impressed me. I would like to share the email I received from him:

"I started programming chips do to the lousy experiences that I had in the past and so I try to treat people the way I would want to be treated. I am not a salesman but rather a car fanatic as well. I have had a lot of experience screwing up fuel injection over the years and once I started solving my own problems with them, it dawned on me that I likely wasn't the only one and so I started doing some chips for other people and learned more as I met people who screwed them up worse than me and while I may charge $250 for custom chips. I hang in there with my customers to help then figure out things on their end and tune who knows how many adjustments on my end to help resolve their issues."

Brian can be reached at:

Harris Performance
PO BOX 1447
Randleman, NC 27317
336-471-2827
www.tbichips.com and www.tpichips.com

 

I would get a hold of a guy that has proven time and time again.. see sig.

 

Try Ed Wright in Tulsa, Ok. His site is http://fastchip.com . He only tunes GM cars and has his own dyno. He is great! Tell him you found him on the forum and that Douglas with the white convertible super charged corvette sent you. His phone number 918-446-3019

 

IMO you need to ditch the 85 ECM for starters - its a dinasour! Its update rate is so slow thats its practicly impossible to work with (IMHO obviously). I've got an 85 and I swapped in a ECM from a 91 MAP car (7730) - this is SUPER tuneable - it was a lot of work but I don't regret it for one minuite

 

More information here :http://www.eecis.udel.edu/~davis/z28/ecm_swap/