Hi,

I presently have a 1992 Formula with a 305 TBI, and 700R4. I am converting to 350 TPI, Speed Density. I have some final questions before I buy all the parts I need to do this swap.

1) Do I need a different Fuel pump than my stock TBI one?

2) Do I need different fuel lines or can I use the TBI one's?

3) Do I need a different charcoal cannister or can I use the TBI one?

Thanks in advance to all who can help, I've never done a fuel injection swap before.

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1992 Pontiac Firebird Formula (original 305 TBI) The project has begun:
just purchased 350 TPI, Dual fan setup, OEM Posi, GM 3.42 gears and JEGS Ultimate Support Cover for 7.5 rear.

1997 Chevrolet Camaro SS # 379 (1 of 371 Black, T-Top, 6-speed)
1973 Chevrolet Camaro RS/Z28
1969 Chevrolet Camaro SS 350

RIP Dale Earnhardt.

I'm old enough to know better, but still too young to care!--Wade Hayes

 

92 formula,where do you live in Virginia? I'm about to do the same swap in my RS.Maybe we can compare notes.lol...the only one I can awnser for sure is yes you need a TPI fuel pump...

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92RS

 

jtmiller92,

Hi, I'm in Lancaster County, Virgina. I was born at Fort Belvoir (DeWitt Army Hospital), though. I'm getting the car done at No.1 Auto Repair in Stafford(recommended fairly high on MAFBA). I've got a ton of info already on this swap, these are just the remaining questions. I thought I needed a new fuel pump, too, but the guy whom MAFBA recommended says I don't. I'm a little worried. At least I can point this out to him.

Also, when it's all done I'm going to write a big parts list and what's needed and post it somewhere.

 

you need to change the4 fuel pump to a 45-50psi fuel pump and for doing that you need to drop the rear-end. you can keep your good old canister and also keep you fuel lines. since you are doing a tpi swap, you will need to custom fabricate fuel line from the engine to rubber fuel fitting on the driver side of the engine .

hope this help and hang in there.

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LT1 POWERED
HEADMANS HEADERS
NEARLY 300 HP.

next mods:
crane roller rockers 1.6
lt4 hotcam kit
airfoil
58MM edelbrock trottle body
new paint (wet look blue)
17' rims with 275 zr 40 and 245 zr40

 

Hi, I was out of town, otherwise I would have thanked you earlier. This is exactly what I needed. I dropped the car off Monday, so naturally this helps me a lot since I still have to buy parts.

 

what years is the engine you are swapping ??? maybe I can help you with the wiring.

------------------
LT1 POWERED
HEADMANS HEADERS
NEARLY 300 HP.

next mods:
crane roller rockers 1.6
lt4 hotcam kit
airfoil
58MM edelbrock trottle body
new paint (wet look blue)
17' rims with 275 zr 40 and 245 zr40

 

Hi,

The engine is a 1986 Corvette L98, but I'm converting it to a Speed Density version. It's going in my '92 Formula. I am unable to do the swap due to time constraints, so I'm having it done.

I thank you for any help you can provide.

Have you run a 1/4 yet with your LT1? I was curious as to how it's done. I love your swap, but I wanted my car to have the appearance of stock.

Thanks again.

 

92 formula: I'll be doing the swap sometime in the spring, so when you get that parts list put together, can you email it to me please?? thanx

TBIcamaro88@aol.com

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'88 CAMARO 305
OPEN AIR ELEMENT
FLOWMASTER CAT BACK EXHAUST

COMPUTER CHIP
HYPERTECH 160* THERMO.

 

Absolutley. I'll make sure you get it as soon as I'm done compiling it.

Good Luck.

 

My car looks almost stock...i'll try to get pics. hmmm...haven't done the 1/4 miles so far cause my car just started few weeks ago and I'm still having few problems . I guess my 1/4 mile would be 13 high or 14 low

------------------
LT1 POWERED
HEADMANS HEADERS
NEARLY 300 HP.

KILLED:
98 MUSTANG GT CONV.
88-89 MUSTANG 5.0 CONV.

next mods:
crane roller rockers 1.6
lt4 hotcam kit
airfoil
58MM edelbrock trottle body
new paint (wet look blue)
17' rims with 275 zr 40 and 245 zr40