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Tpi fuel stuff

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Old 04-10-2008 | 12:33 PM
  #1  
camshaftxe's Avatar
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From: funro loserana
Car: 91 rs
Engine: tbi 350
Transmission: 700r/manual
Axle/Gears: 3.23
Tpi fuel stuff

Slowly but surely I am gathering parts for a tpi swap. I have almost everything, but my injectors are for a 305. I read that they are 19.3lbs @ 43.5 psi. Is this true? Is there any way I can use these in my 356 application?
Old 04-10-2008 | 12:47 PM
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thunder85's Avatar
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Car: 1988 firebird trans am GTA
Engine: 5.7L w/hsr
Transmission: 700r4
Axle/Gears: posi 3.23
Re: Tpi fuel stuff

if you get an afpr and boost the pressure, you might be able to fake it for a bit, but your best bet is to get some 22 or 24lb injectors.

on a side note, i just bought some type III bosche (rebuilt with 3 year warranty) from fuel injector connection. damn good prices, and u can't beat the warranty
Old 04-10-2008 | 01:51 PM
  #3  
camshaftxe's Avatar
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From: funro loserana
Car: 91 rs
Engine: tbi 350
Transmission: 700r/manual
Axle/Gears: 3.23
Re: Tpi fuel stuff

Does anyone know offhand how uping the fp affects the flow rate on injectors?
Old 04-11-2008 | 11:59 AM
  #4  
pandin's Avatar
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Joined: Sep 2007
Posts: 1,091
Likes: 1
From: West Central Ohio
Car: 86 vette
Engine: 383
Transmission: 700R4
Axle/Gears: 3.07
Re: Tpi fuel stuff

More pressure more flow. There are calculators on the web/tgo, to figure the difference.
Old 04-11-2008 | 07:13 PM
  #5  
irocuroc's Avatar
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Joined: Mar 2008
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From: nj
Car: 89 iroc
Engine: l98
Transmission: tremec
Re: Tpi fuel stuff

Originally Posted by thunder85
if you get an afpr and boost the pressure, you might be able to fake it for a bit, but your best bet is to get some 22 or 24lb injectors.

on a side note, i just bought some type III bosche (rebuilt with 3 year warranty) from fuel injector connection. damn good prices, and u can't beat the warranty
I just ordered today also.. I'm having them shipped for sat. delivery. i will tell you tomorrow night how it runs. Nice people very helpful..
Old 04-12-2008 | 07:40 PM
  #6  
irocuroc's Avatar
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Joined: Mar 2008
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From: nj
Car: 89 iroc
Engine: l98
Transmission: tremec
Re: Tpi fuel stuff

put in the 3rd gen bosch.. big job because i detailed the engine. just got back from an hour drive.. car runs great.. easy starting no more hesitation
thanks jon!!
Old 04-14-2008 | 09:12 AM
  #7  
czbigboy's Avatar
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Joined: Jun 2006
Posts: 63
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From: Slidell, La.
Car: 85 IROC Z
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Tpi fuel stuff

How much did the Injectors cost you?
Old 04-14-2008 | 12:49 PM
  #8  
irocuroc's Avatar
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Joined: Mar 2008
Posts: 428
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From: nj
Car: 89 iroc
Engine: l98
Transmission: tremec
Re: Tpi fuel stuff

i bought the flow balance set. 169 for all 8 3 yr guar.
heres the link of their store
www.fuelinjectorconnection.com

if you call ask for jon
Old 04-15-2008 | 03:27 AM
  #9  
Theking's Avatar
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Posts: 924
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From: Sweden
Car: 1989 IROC-Z
Engine: 350 TPI
Transmission: Th700R4
Axle/Gears: 3.27
Re: Tpi fuel stuff

the 19lbs injectors will WORK at an high pulse width and they will get bad faster.. It will work but you will shorten the life of the injectors, and also If you got an stock tpi intank fuelpump dont go over 50psi (because that will hurt the pump over a long time..)

If you have the $$$ in some near future, buy atleast 22lbs then (or bigger and change the injector constant in the prom.)

take care.
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