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When I bought my 93 LT1, it came with a hypertech chip in it and a 160 thermostat. I would like to put a stock chip back in and get another thermostat. What and where can I get these.
When I bought my 93 LT1, it came with a hypertech chip in it and a 160 thermostat. I would like to put a stock chip back in and get another thermostat. What and where can I get these.
I believe that your Hypertech is a "piggyback" type...meaning your stock prom is mated to the Hypertech. Therefore your stock chip (prom) is there within the ECM. Check the Hypertech website to verify.
This is the info I have for 87....there are others if the car was destined for export.
Year Body Trans Rpo Ratio Prom
87 Coupe Man G44 3.07 0315ABTB
87 Coupe Auto GM1 2.59 4427HDA
87 Coupe Auto G44 3.07 0735ABTF
87 Vert Man G44 3.07 0326ABTJ
87 Vert Auto GU2 2.73 0739ABTK
87 Vert Auto G44 3.07 1825ADJR
This is the info I have for 87....there are others if the car was destined for export.
Year Body Trans Rpo Ratio Prom
87 Coupe Man G44 3.07 0315ABTB
87 Coupe Auto GM1 2.59 4427HDA
87 Coupe Auto G44 3.07 0735ABTF
87 Vert Man G44 3.07 0326ABTJ
87 Vert Auto GU2 2.73 0739ABTK
87 Vert Auto G44 3.07 1825ADJR
I believe that your Hypertech is a "piggyback" type...meaning your stock prom is mated to the Hypertech. Therefore your stock chip (prom) is there within the ECM. Check the Hypertech website to verify.
SAVE THE WAVE
So I pulled the chip off today and decided to go for a quick test drive and it runs great, so great I blew past a cop and got pulled over. No tickets, just a comment about the expired inpection sticker. Now I just have to get a thermostat. What temp should I get?
So I pulled the chip off today and decided to go for a quick test drive and it runs great, so great I blew past a cop and got pulled over. No tickets, just a comment about the expired inpection sticker. Now I just have to get a thermostat. What temp should I get?
I'm running a stock thermostat in my '91 w/Hypertech chip. There is a lot of information on this subject, do a search on thermostat.
With the chip in my temps never went over 200 degrees. I wonder how high they will go now. I think I will go with a 195 degree thermostat and see how it works. What temp is the stock thermostat?
Last edited by rickwhoo; Feb 14, 2010 at 09:58 AM.