Texas World Speedway

wstar

^ FYI - The 25 or 34 options listed with most of the kits are usually Series-6, unless whoever's selling the kit tells you otherwise. The 25 row on DR_'s (and mine) is a Series-9, which is wider. The major difference for oil cooling in our two setups at that time was airflow - his was mostly sitting in a stock bumper setup; mine had the grill fins cut out and replaced with metal mesh, and had some aluminum sheet used as an upper mount blocking off a lot of the over-the-top flow, forcing more air through the cooler, and a trans cooler sitting next to it so that there wasn't any easy bypass for the air in that direction either. Others have gone further with basically building a "box" extending forward from the oil cooler so that air that enters its frontal area is forced to go through instead of around.

I think, given the shape of the bumper area, the 25-row series-9 is better than the 34-row series-6, but even a 25-row series 6 helps a lot.

__________________
7AT Track Car!
Journal thread / Car setup details

x10370zx

That's really good info, thanks! Glad I didn't buy yet - I'll be sure to ask if it's a series 6 or series 9. I'm not sure if I'm willing to cut and mess with bumper pieces, but I guess if it needs it then I'll do what I have to. This brings me to an additional question:

How tall is your 25 row series-9 in relation to the bumper? Are there any rows that are being blocked because of height or does it sit ok? I'm worried that a good bit of the 34 row will get blocked by the stock bumper and hence won't really do a whole lot better than the 25. As mentioned I'm not too keen on cutting the bumper, but I'd be ok with making some sort of box or sheet to direct more air to it.