TPI in my 51 GMC - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1project2many · 06-11-2015, 06:49 AM

The intake will limit power. The main factor is the small runner size which limits airflow. A smaller displacement engine will run to higher rpm, 5200 or so with a 302, while a 383 can see a peak as low as 4200. There is an aftermarket version of the TPI based on a system by Airsensors / F.I.R.S.T. which will support more power / higher rpm but they're spendy. They were offered as a standalone system with a fuel only computer and were also sold through B&M as "Superjection."

Leftover NOS from this defunct company was for sale through a website called auto-nomics but I see they've sold their inventory to first performance. There's plenty of reading on the auto-nomics site and you can view some neat installations and current offerings on the first performance site. Personally I'd use a factory GM ecm with this manifold but standalone kits are available.

Softpatch · 06-11-2015, 11:49 PM

congrats nice job
I had an howell injection system on my 64 and can tell you it was not a success did not have any fun a real wallet burner.... howell system soured me
it was definitely not plug and play

.

solidaxel · 06-12-2015, 10:29 AM

I just picked up a 87 350, checked the casting #'s and that and the computer tells me that everything is a 350CI.
The question I have for those of you that have had good luck with them is...... I want to start the engine, but I have no idea which wires I need in the harness I need to start ONLY.
There is a 700R attached to it and all wiring is attached all the way to the computer.

Where do I start ? pun intended!!

Katrina/10 · 06-12-2015, 12:12 PM

Quote:

Originally Posted by solidaxel

I just picked up a 87 350, checked the casting #'s and that and the computer tells me that everything is a 350CI.
The question I have for those of you that have had good luck with them is...... I want to start the engine, but I have no idea which wires I need in the harness I need to start ONLY.
There is a 700R attached to it and all wiring is attached all the way to the computer.

Where do I start ? pun intended!!

Is it removed from the truck? Everything on the engine needs to be plugged in, and there are two 12v wires to the battery. It will run without the O2 sensor, and of course you will need to hotwire a fuel pump.

solidaxel · 06-12-2015, 12:34 PM

Quote:

Originally Posted by Katrina/10

Is it removed from the truck? Everything on the engine needs to be plugged in, and there are two 12v wires to the battery. It will run without the O2 sensor, and of course you will need to hotwire a fuel pump.

Thanks, All the connections are still on the engine I have removed the body and front sheet metal so it is just a rolling chassis

twinsemi · 06-12-2015, 03:31 PM

Since you say it is an 87, from the picture alone, you will need to add the MAF sensor. ECU has a couple BAT leads and some IGN leads. You can find the wiring diagrams on the web. You will need to know your ECU number to make sure you don't fry something.

solidaxel · 06-12-2015, 03:39 PM

I think I need to get out of Katrin's site and start my own.
Thanks for the help

If you don't mind I will add the numbers from the computer
Service #01227165
It has a SuperChip #8820 B installed
The casting numbers on the engine block
14610207

Katrina/10 · 06-12-2015, 04:28 PM

No problem, if you are the one taking it apart, you can see where all the wires go. It will really help you if you download the FSM wiring diagrams for the car you are taking it out of.

Katrina/10 · 06-12-2015, 04:30 PM

Quote:

Originally Posted by solidaxel

I think I need to get out of Katrin's site and start my own.
Thanks for the help

If you don't mind I will add the numbers from the computer
Service #01227165
It has a SuperChip #8820 B installed
The casting numbers on the engine block
14610207

No problem, if you are the one taking it apart, you can see where all the wires go. It will really help you a lot if you get a copy of the FSM wiring diagrams for the car you are taking it out of.

docrock · 06-13-2015, 05:42 PM

this is very cool. I have two of these intakes and a harness with computer. I was going to toss them but now maybe not. I started a 42 flatbed that might look cool with this setup. Dont you need the whole gas tank also with a 40 psi fuel pump?
In my 54 I have the whole harness and chassis with the 4l60e and 5.7. Runs great now.

Katrina/10 · 06-14-2015, 07:43 AM

Quote:

Originally Posted by docrock

this is very cool. I have two of these intakes and a harness with computer. I was going to toss them but now maybe not. I started a 42 flatbed that might look cool with this setup. Dont you need the whole gas tank also with a 40 psi fuel pump?
In my 54 I have the whole harness and chassis with the 4l60e and 5.7. Runs great now.

Don't throw them away, somebody could use them! They really do look cool and work well in a truck. I used the original tank, with an inline electric pump.

**Rickysnickers** · 06-14-2015, 10:31 AM

1project,

I looked at the website, https://www.firstfuelinjection.com/services.html. Man they are pretty proud of those parts! They are expensive.

1project2many · 06-14-2015, 03:34 PM

Yes, they are very expensive.

But they are the only long runner, TPI style intake I'm aware of that can produce 500+ hp n/a. And I *believe* they have a vortec base available now. Look at pricing for the stealth ram.

You could always use a stock unit and add turbo / supercharging.

mobileortho · 06-14-2015, 09:17 PM

I have it in my truck. Found a good deal on the Edelbrock intake and runners so I swapped those as well. Name: image.jpg
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06-11-2015, 06:49 AM	#26
1project2many Registered User Join Date: Mar 2012 Location: Lakes Region NH Posts: 3,200	Re: TPI in my 51 GMC The intake will limit power. The main factor is the small runner size which limits airflow. A smaller displacement engine will run to higher rpm, 5200 or so with a 302, while a 383 can see a peak as low as 4200. There is an aftermarket version of the TPI based on a system by Airsensors / F.I.R.S.T. which will support more power / higher rpm but they're spendy. They were offered as a standalone system with a fuel only computer and were also sold through B&M as "Superjection." Leftover NOS from this defunct company was for sale through a website called auto-nomics but I see they've sold their inventory to first performance. There's plenty of reading on the auto-nomics site and you can view some neat installations and current offerings on the first performance site. Personally I'd use a factory GM ecm with this manifold but standalone kits are available. Last edited by 1project2many; 06-11-2015 at 07:06 AM.

06-11-2015, 11:49 PM	#27
Softpatch Registered User Join Date: Sep 2013 Location: Vashon WA Posts: 969	Re: TPI in my 51 GMC congrats nice job I had an howell injection system on my 64 and can tell you it was not a success did not have any fun a real wallet burner.... howell system soured me it was definitely not plug and play . __________________ My Spelling is Not Incorrect...It's 'Creative' . . 1966 C-20 .....Swap 91 G-30(5.7 FI)/4L80E http://67-72chevytrucks.com/vboard/s...d.php?t=789617 59 Viking Revival .. http://67-72chevytrucks.com/vboard/s...d.php?t=632341

06-12-2015, 10:29 AM	#28
solidaxel Registered User Join Date: Dec 2002 Location: Cactus Patch So. Az Posts: 4,749	Re: TPI in my 51 GMC I just picked up a 87 350, checked the casting #'s and that and the computer tells me that everything is a 350CI. The question I have for those of you that have had good luck with them is...... I want to start the engine, but I have no idea which wires I need in the harness I need to start ONLY. There is a 700R attached to it and all wiring is attached all the way to the computer. Where do I start ? pun intended!! __________________ 53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42

06-12-2015, 03:31 PM	#31
twinsemi Registered User Join Date: Oct 2012 Location: Soquel, CA Posts: 23	Re: TPI in my 51 GMC Since you say it is an 87, from the picture alone, you will need to add the MAF sensor. ECU has a couple BAT leads and some IGN leads. You can find the wiring diagrams on the web. You will need to know your ECU number to make sure you don't fry something.

06-12-2015, 03:39 PM	#32
solidaxel Registered User Join Date: Dec 2002 Location: Cactus Patch So. Az Posts: 4,749	Re: TPI in my 51 GMC I think I need to get out of Katrin's site and start my own. Thanks for the help If you don't mind I will add the numbers from the computer Service #01227165 It has a SuperChip #8820 B installed The casting numbers on the engine block 14610207 __________________ 53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42 Last edited by solidaxel; 06-12-2015 at 03:54 PM.

06-12-2015, 04:28 PM	#33
Katrina/10 Registered User Join Date: Oct 2010 Location: Ocean Springs, MS Posts: 1,746	Re: TPI in my 51 GMC No problem, if you are the one taking it apart, you can see where all the wires go. It will really help you if you download the FSM wiring diagrams for the car you are taking it out of. __________________ Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100

06-13-2015, 05:42 PM	#35
docrock Registered User Join Date: Jun 2010 Location: Encinitas, CA Posts: 523	Re: TPI in my 51 GMC this is very cool. I have two of these intakes and a harness with computer. I was going to toss them but now maybe not. I started a 42 flatbed that might look cool with this setup. Dont you need the whole gas tank also with a 40 psi fuel pump? In my 54 I have the whole harness and chassis with the 4l60e and 5.7. Runs great now. __________________ 1954 GMC on 93 Silverado chassis http://67-72chevytrucks.com/vboard/s...d.php?t=408344 1942 Chevy 1/2 ton Pickup http://67-72chevytrucks.com/vboard/s...d.php?t=429494 R.I.P. TOM SEFFRON 68 FOUR DOOR http://67-72chevytrucks.com/vboard/s...d.php?t=495438 1942 Chevy that ate my brain 70 Chassis https://67-72chevytrucks.com/vboard/...d.php?t=835250

06-14-2015, 10:31 AM	#37
Rickysnickers Senior Member Join Date: Oct 2014 Location: Eagle, ID Posts: 3,058	Re: TPI in my 51 GMC 1project, I looked at the website, https://www.firstfuelinjection.com/services.html. Man they are pretty proud of those parts! They are expensive.

06-14-2015, 03:34 PM	#38
1project2many Registered User Join Date: Mar 2012 Location: Lakes Region NH Posts: 3,200	Re: TPI in my 51 GMC Yes, they are very expensive. But they are the only long runner, TPI style intake I'm aware of that can produce 500+ hp n/a. And I believe they have a vortec base available now. Look at pricing for the stealth ram. You could always use a stock unit and add turbo / supercharging.

06-14-2015, 09:17 PM	#39
mobileortho Registered User Join Date: Sep 2008 Location: Hampton, VA Posts: 904	Re: TPI in my 51 GMC I have it in my truck. Found a good deal on the Edelbrock intake and runners so I swapped those as well. __________________ Robert C. 1950 3600 3600 re-do, shortening it up If it's true what they say, "You learn from your mistakes," I'm a Genius in the making.



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