what size inj for LT-70?

[turbo grey]

what size inj would u guys consider the minimum to safely fuel a lt-70
turbo??
would 55#ers do the job?anyone using this combo?I recently purchased these inj,and wanted to sell them to get 72's,but have not had any luck. I dont want to give them away,so i'm thinking of running them,and if need be add a 7th inj.

 

[Wht87T]

72's or 75's

 

[broke1]

Id go 83lbs minimum or youll be upgrading once you start pushing the limits of the carIMO.

One 60lb 7th would still only give you 65lb injectors.HTH

 

[azgn]

83's

 

[Wht87T]

I still say 72's or 75's unless the car goes in the 9s

 

[REDS HOT AIR]

id say atleast 75's

 

[salvageV6]

I'd maximize what you have first since you aren't in a hurry to sell and buy.

Got about a half second to go in ET's which could take a while to achieve.

Assuming you will be running about the same about of boost with the new turbo and all first time at the track.

Also assuming you have a good scantool to monitor pulse widths and duty cycles.

Obviously when upgrading later on bigger is better.

Keep them up for sale and hit the track.

 

[Louie L.]

From our own findings , the 75s will go to about 640-650 RWHP.

 

[Nojug]

I would say the 55's will work for a while I have just put a pair of 50's in a car with ported heads, stretch intercooler, and a Stealth 70 and on 22psi its not out of fuel yet so I would say you will be ok until to the 28-30psi range.