Short and cool engine loop sound needed

Hi! I am looking for a nice sounding, very short, but obiously- looping 4000 RPM engine looping sound. If anyone can help me, please, do it. I really need it, but- for free…
Also 1000 RPM wouldnt be bad, no metter- 1000 or 4000!

Thanks! I think I found on good there:)