The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - woohoo fired up the 327 with TPI ... but need help

Custom 68 · 06-19-2004, 08:50 AM

Here are the specs. have upgraded the injectors to 24 pound stock ones. (newer vette) The TPI setup is from a 1986 Corvette using the MAF as well
The engine is a 327 bored 0.06 over with approximately 9.7 to 1 compression. The heads are an older stock performance head casting number 461. They have 2.02 intake and 1.6 exhaust valves. The cam is a Crane cam part number 114132. The crane site has the info with this part number. However it is lift at cam of 2934 at valve 440 intake and 3027 at valve 454 exhaust. the max lift is 109 ATDC duration of 210 intake and lift of 119 BTDC duration of 216 exhust. This is a computer friendly cam.
If you look at the crane site it has more info on the cam.

My fuel pressure is about 45 I do have an adjustable regulator so I can turn it down if necessary.
The O2 sensor is hooked up and the ecm indicates it is in close loop so it should be using the sensor. I am going to try a heated one since this one is just outside the collectors
I will continue to trouble shoot but just looking for things to look for.

Guy I will go over the install. I did all the harness work and stuff my self using a book and info off Chevy Thunder.com I will also post pictures.
Thanks
Dave

06-19-2004, 08:50 AM	#5
Custom 68 Registered User Join Date: Nov 2001 Location: Springfield, MO Posts: 2,944	thanks guys Here are the specs. have upgraded the injectors to 24 pound stock ones. (newer vette) The TPI setup is from a 1986 Corvette using the MAF as well The engine is a 327 bored 0.06 over with approximately 9.7 to 1 compression. The heads are an older stock performance head casting number 461. They have 2.02 intake and 1.6 exhaust valves. The cam is a Crane cam part number 114132. The crane site has the info with this part number. However it is lift at cam of 2934 at valve 440 intake and 3027 at valve 454 exhaust. the max lift is 109 ATDC duration of 210 intake and lift of 119 BTDC duration of 216 exhust. This is a computer friendly cam. If you look at the crane site it has more info on the cam. My fuel pressure is about 45 I do have an adjustable regulator so I can turn it down if necessary. The O2 sensor is hooked up and the ecm indicates it is in close loop so it should be using the sensor. I am going to try a heated one since this one is just outside the collectors I will continue to trouble shoot but just looking for things to look for. Guy I will go over the install. I did all the harness work and stuff my self using a book and info off Chevy Thunder.com I will also post pictures. Thanks Dave __________________ Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"