stock_rolla Posted November 1, 2004 Report Share Posted November 1, 2004 What is better to run in a 4kc motor without putting stainless steel valves in, unleaded or premo unleaded? Quote Link to comment Share on other sites More sharing options...
irokin Posted November 1, 2004 Report Share Posted November 1, 2004 In my experience unleaded yeilds the best results. I found that running premium you accually lost power. I BELIEVE this is because of the short stroke and premium doesnt have enough time to complete a full burn. I ran unleaded for 6 months or so before an engine rebuild. Upon inspection of the valves there was minor pitting...nothing too severe (alebit this was a 30 year old motor in 100% original factory condition...just worn out so the pitting may not have been from the unleaded). Most of the guys here run unleaded or premium unleaded with no problems what-so-ever. If your concerned about running unleaded you can put in some stem lube but in my honest opinion they don't need it. Quote Link to comment Share on other sites More sharing options...
Redwarf Posted November 1, 2004 Report Share Posted November 1, 2004 Irokin is right. No mods are required on a 4K-C for them to run unleaded (except maybe a tweek to the timing..). Unless it's a grunter engine, save your pennies and use unleaded. Quote Link to comment Share on other sites More sharing options...
stock_rolla Posted November 1, 2004 Author Report Share Posted November 1, 2004 Cheers for that. it helps me out a bit. as it is getting harder for me to find a servo that still sells lead-replacement fuel :jason: Quote Link to comment Share on other sites More sharing options...
irokin Posted November 1, 2004 Report Share Posted November 1, 2004 Agreed. I have a strong dislike for Shell. I tend to only buy Caltex and BP. If I buy premium I only ever buy BP Ultimate. Its the shiznat. (cept for 110LL) Quote Link to comment Share on other sites More sharing options...
mumblezzz Posted November 1, 2004 Report Share Posted November 1, 2004 I mainly use BP ultimate in my car. Probably cause its the closest servo to my house. But i'll use any premium if I'm running on emtpy. havent tried regular in it yet, probably cause its tuned to run on that 100ron jap rocket fuel they have. Quote Link to comment Share on other sites More sharing options...
stock_rolla Posted December 7, 2004 Author Report Share Posted December 7, 2004 Iv'e been running Vortex in my car and it loves the stuff! sheers :insane: Quote Link to comment Share on other sites More sharing options...
ae71neo Posted December 8, 2004 Report Share Posted December 8, 2004 I try to only use BP Ultimate, but there isnt one to close so i sometimes have to use no name PULP. Can def. feel the difference between bp and no name. Quote Link to comment Share on other sites More sharing options...
irokin Posted December 8, 2004 Report Share Posted December 8, 2004 I wouldnt waste my money on vortex... Quote Link to comment Share on other sites More sharing options...
Teddy Posted December 13, 2004 Report Share Posted December 13, 2004 My rolla gets treated to BP ultmo every time. :doublebird: Quote Link to comment Share on other sites More sharing options...
ae71neo Posted December 13, 2004 Report Share Posted December 13, 2004 Mine pings like buggery on regular. and no i wont change the timing :doublebird: Quote Link to comment Share on other sites More sharing options...
Novalis Posted December 28, 2004 Report Share Posted December 28, 2004 My Nova gets a nice does of Unleaded fuel :lol: Quote Link to comment Share on other sites More sharing options...
Novalis Posted December 28, 2004 Report Share Posted December 28, 2004 You could also put Fuel Additives into your tank when refueling for those extra K's and if adding the right stuff you can get more power outta your car :lol: Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.