Project Update w/questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

harlyworkr · 11-27-2008, 06:51 PM

OMG! I have 4 solid days to work on ol' Blue uninterrupted!

Here is the latest pictures but with them comes a couple questions if you don't mind. Question 1: On pic 3 there is a water port broken off, can I get by without running the coolant through the throttle body? Question 2: 24# injectors, 58mm throttle body, 100psi fuel pump with a 40psi fuel regulator, will these numbers work together? Any suggestions or comments welcome.

d10s69c10 · 11-27-2008, 07:01 PM

im not really that eperienced with tbi, but why would you run coolant thru it? seems to me like all it would do is heat everything up, causing a loss of power.

i gotta google this.

Sport/Truck · 11-27-2008, 08:39 PM

I believe it will only affect operation in cold temperatures, mainly at idle.
I'm not sure about your 2nd question. I want to say it depends on our fuel curve. If your injector is too big you could turn down your AFPR....But it boils down to if it's big enough/too small for for your set up.
s/t

cparman · 11-27-2008, 09:10 PM

GM ran water thru the throttle body for cold driveability issues. One of the first things you do to make more power is to bypass them! The issue of are the injectors,fuel pump, throttle body matched. I think you are ok, BUT, my opinion is that you need to find a chip burner and tell him what your setup is and have a custom chip burned for your application. I used to play with Buick Grand Nationals, and I would run 42.5 lb injectors with 40 PSI fuel pressure, and a TON of boost. There are people with software and hardwaqre that will burn custom chips for these cars, and would think you should be able to get exactly what you want. Might look up a compant called TPIS they specialize in TPI.

d10s69c10 · 11-27-2008, 09:41 PM

well that makes sense.. i guess the fact i have never seen snow will justify my confusion on that. googled it and i saw some info indicating companies make block off plates for that..

chas350 · 11-27-2008, 10:07 PM

Hey harly,

nice engine!

What color is that?

chas

harlyworkr · 11-27-2008, 10:28 PM

Thank you for the advise, I will look for a chip tech. As for the color, I will let you know Monday when I get back to work.

**WIDESIDE72** · 11-28-2008, 12:20 AM

I have personally dealt with Brian Harris of Harris Performance 336-471-2827 sales@tbichips.com on two ocassions, one for a chip for a 96 Impala SS, the other a 93 GMC 3/4 ton 4x4 with a swapped Vortec running bored TBI and a LT4 cam. He sells on EBAY under "TBI CHIPS" and has 100% positive feedback with over 2800 sales. He went out of his way to answer all of my questions on the truck chip.

Andy4639 · 11-28-2008, 07:22 AM

Question 1: On pic 3 there is a water port broken off, can I get by without running the coolant through the throttle body?
Answer:
If the truck want see really cold temps then yes you will be fine. I have never hooked mine up. The factory had this done for cold driving in the northern states.
You can see mine in this picture. I put the hoses on there but they aren't necassary.

Question 2: 24# injectors, 58mm throttle body, 100psi fuel pump with a 40psi fuel regulator, will these numbers work together? Answer:
Whoever you have do your chip tell them what you have and what you want out of the motor. They can either make it work or tell you what you need to do.

glock35ipsc · 11-28-2008, 12:29 PM

When I had the supercharger on my 03 Chevy 5.3L, I had to bypass that too. In Colorado during the winter, I never had a problem with cold starts.

11-27-2008, 06:51 PM	#1
harlyworkr Registered User Join Date: Sep 2005 Location: Kansas City Kansas Posts: 212	Project Update w/questions OMG! I have 4 solid days to work on ol' Blue uninterrupted! Here is the latest pictures but with them comes a couple questions if you don't mind. Question 1: On pic 3 there is a water port broken off, can I get by without running the coolant through the throttle body? Question 2: 24# injectors, 58mm throttle body, 100psi fuel pump with a 40psi fuel regulator, will these numbers work together? Any suggestions or comments welcome. Attached Images

11-27-2008, 07:01 PM	#2
d10s69c10 Built 4 Speed Join Date: May 2008 Location: Geneva FL Posts: 619	Re: Project Update w/questions im not really that eperienced with tbi, but why would you run coolant thru it? seems to me like all it would do is heat everything up, causing a loss of power. i gotta google this. __________________ 1969 C/10 Short Box: 496/T-56 in worx. "To Be Old And Wise, First You Must Be Young And Stupid"

11-27-2008, 08:39 PM	#3
Sport/Truck Sierra Grande Club Join Date: Jan 2007 Location: New Mexico USA Posts: 2,433	Re: Project Update w/questions I believe it will only affect operation in cold temperatures, mainly at idle. I'm not sure about your 2nd question. I want to say it depends on our fuel curve. If your injector is too big you could turn down your AFPR....But it boils down to if it's big enough/too small for for your set up. s/t __________________ 1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe.

11-27-2008, 09:10 PM	#4
cparman sharp as a marble Join Date: Jan 2007 Location: atlantic beach,florida Posts: 1,082	Re: Project Update w/questions GM ran water thru the throttle body for cold driveability issues. One of the first things you do to make more power is to bypass them! The issue of are the injectors,fuel pump, throttle body matched. I think you are ok, BUT, my opinion is that you need to find a chip burner and tell him what your setup is and have a custom chip burned for your application. I used to play with Buick Grand Nationals, and I would run 42.5 lb injectors with 40 PSI fuel pressure, and a TON of boost. There are people with software and hardwaqre that will burn custom chips for these cars, and would think you should be able to get exactly what you want. Might look up a compant called TPIS they specialize in TPI. Last edited by cparman; 11-27-2008 at 09:12 PM. Reason: spelling

11-27-2008, 09:41 PM	#5
d10s69c10 Built 4 Speed Join Date: May 2008 Location: Geneva FL Posts: 619	Re: Project Update w/questions well that makes sense.. i guess the fact i have never seen snow will justify my confusion on that. googled it and i saw some info indicating companies make block off plates for that.. __________________ 1969 C/10 Short Box: 496/T-56 in worx. "To Be Old And Wise, First You Must Be Young And Stupid"

11-27-2008, 10:07 PM	#6
chas350 Registered User Join Date: Mar 2007 Location: Connecticut Posts: 581	Re: Project Update w/questions Hey harly, nice engine! What color is that? chas __________________ "I'll Procrastinate Tomorrow" quote by LEEVON 71 K10 long fleet (sons truck) new 370hp 355, sm465 np205, 3.73's 33's 70 K20 long fleet 98 G3500 work van

11-27-2008, 10:28 PM	#7
harlyworkr Registered User Join Date: Sep 2005 Location: Kansas City Kansas Posts: 212	Re: Project Update w/questions Thank you for the advise, I will look for a chip tech. As for the color, I will let you know Monday when I get back to work.

11-28-2008, 12:20 AM	#8
WIDESIDE72 Senior Member Join Date: Aug 2008 Location: Cedar Park, Texas Posts: 7,500	Re: Project Update w/questions I have personally dealt with Brian Harris of Harris Performance 336-471-2827 sales@tbichips.com on two ocassions, one for a chip for a 96 Impala SS, the other a 93 GMC 3/4 ton 4x4 with a swapped Vortec running bored TBI and a LT4 cam. He sells on EBAY under "TBI CHIPS" and has 100% positive feedback with over 2800 sales. He went out of his way to answer all of my questions on the truck chip. Last edited by WIDESIDE72; 11-28-2008 at 11:19 AM.

11-28-2008, 07:22 AM	#9
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Project Update w/questions Question 1: On pic 3 there is a water port broken off, can I get by without running the coolant through the throttle body? Answer: If the truck want see really cold temps then yes you will be fine. I have never hooked mine up. The factory had this done for cold driving in the northern states. You can see mine in this picture. I put the hoses on there but they aren't necassary. Question 2: 24# injectors, 58mm throttle body, 100psi fuel pump with a 40psi fuel regulator, will these numbers work together? Answer: Whoever you have do your chip tell them what you have and what you want out of the motor. They can either make it work or tell you what you need to do. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

11-28-2008, 12:29 PM	#10
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,685	Re: Project Update w/questions When I had the supercharger on my 03 Chevy 5.3L, I had to bypass that too. In Colorado during the winter, I never had a problem with cold starts. __________________ *Bob* 1970 Chevy K10 LWB "Goldie" 350/TH350 *next project!!* 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE



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