hey guys,

I notice that most ls1 guys use a dry setup, why not lt1 guys?

thanks

 

wet is safer!

 

ls1's use the maf to get the extra fuel, lt1's use fuel pressure spiker to get the extra fuel on dry kits

 

i notice that but we both have maf or is it that our pcm doesn't give enough fuel even by tricking the maf?

 

Good question. I would like to know as well.

 

Plenty LT1s have used dry kits

 

most lt1s I see uses the spike the fuel pressure type of dry set-up.

 

How does the spike the fuel pressure method work?. Ive always used wet kits which is why I ask,

 

very simple...On a n.o.s kit they have a regulator(not sure what they call it) that basically increase pressure through the vaccum line at the regulator to bump the fuel pressure to about 90ps...like a fmu for superchargers

 

Got ya. Thank you.

 

The lt1 has a simpler computer, small injectors, weak fuel pump and this why the MAF dry isn't used. The NOS kit has a aux fuel pump that is used to spike fuel pressure up and trick injectors into being bigger.
Robert

 

Yeah, a buddy of mine had a Zex kit on his LT1 for ever. I think at last count he was at 40 + bottles. Car had like 190,000 + mile no problems. But in some hoarse trade he swapped his engine for a built 383, didn't upgrade fuel pump, and let some guy "tune" his car while driving. ( no wideband wtf ). Shifted into second on spray, and blew a head gasket. At the very least possibly more.

 

Friend of mine had a 97 lt1 with a 100 dry. Ran lots and lots of bottles through the car and never had a problem. No tune just colder plugs and premium gas.

 

I have had three LT1's myself, all with both dryand wet kits. Never had a problem. My 93' Vette went 138k miles with a 125 shot dry. My 96' Z28 went 100k miles with 125 dry, never a problem....

 

dry as in spike the fuel pressure?