Hey, I have the mods that are listed below, and I'm willing to upgrade. I bought Denso IKH24 sparg plugs ( 1 step colder) and willing to buy GSC S1 cams, from a friend of mine, are used only a few miles, cause he is upgrading also. Should I buy from him or buy new ones?

For my current setup plus spark plugs,S1 cams and ecu tuning, do I need also a Walbro fuel pump? Please, I need some advice. Don't forget to mention if buying used cams is OK.

 

anyone?

 

Used cams are fine as long as you trust the seller and the cams are in good condition. i would get a walboro, others may say that you dont need one yet but why take any chances; you can get them for under 100$
Get the cams
Get a Fuel pump
Get a Tune
Do them all together, you dont want to be driving around with a car that is not tuned for its modifications.

 

will the fuel pump change the gas mileage?

 

anyone?

 

I've been running used HKS 280 cams to 8500rpm for a long time...just inspect them and make sure they aren't scarred up before you buy them.

go ahead and do the fuel pump at the same time and get it retuned for both in one shot and the gas mileage will be fine.

 

10x for advice, you're always helpful!

 

When i changed my fuel pump my mileage stayed exactly the same. You couldn't even tell it was in there with the exception it was a little louder a fuel pump then stock.

 

the IX fuel pump is bigger than the Viii pump. it flows really well. if your doing cams i would just throw the pump in, you might be ok on the stock IX pump but adding cams is going to require more air, and more fuel, get the pump.