Stock 83 Corona... T25 Turbo Questions

[benb1984]

hey I'm new to this forum but have learnt alot from them in the past when fixing my 3 wheeler.. my newest project has been a stock 83 toyota corona with a 3 speed auto.. it has 148 000ks. it ended up out front of the wreckers from a deceased estate... by the time i got it 6 months rego it had cost me about 900$.. the car drives perfect, the 3 speed lets it down but otherwise its great.. it likes doin 80ks before it sounds like its really drinking fuel.. my mate said he had an old turbo laying around i could have and now I'm looking for ideas.. heres my thoughts anyway.. let me know what u think...

 

i want to run the exhasut from the drivers side behind the engine around to the passenger side, (this car has the intake and exhast on the same side of the head)

the intake will run from the exhaust through the front and into the turbo.

thats just pipe bending and stuff.. not real hard.. my mate is a boiler maker and i can get welding and pipe bent free..

i plan to use at least 5mm wall and as large as possible diameter..

all the end plates will be made of at least 5mm to and professional welded together..

 

i was planing to run with the carb infront of the turbo.. and without an intercooler or blow off valve, because i have heard if the car backfires out the carb it could blow up the intercooler.. is this true? the turbo has an internal waste gate so i don't think a blow off valve is needed? is it hard to run the carb after the turbo so this dosnt happen?

 

will i need to make a compression plate? i can get the engine tested but havent as yet to find out what its compression is.. but what would my target be if i wanted to run 10psi? would i have to change it at all?

also being an auto its not gonna let me flog it out to bad so maby that will help preserve the engine?

ill leave it at that for now..

 

any suggestions or pics of similar setups would be great

i will post some more pics of the engine soon

[Taz_Rx]

No you can't run an intercoller or BOV in a "draw-through" (carb in front of turbo) setup. This is because the coller with have air AND FUEL running through it, same reason for the BOV, it'll spit out a nice stoich mix into your engine bay.

 

Internal/external gate makes no difference to weather you can or can't run a BOV.

 

Yes you can run a carb after the turbo - search for "blow through".

 

You can run it on the stock compression ratio, with 10psi. You just need to adequately tune it mainly in the timing.