Rb26Dett S13

[Aazzy]

Looking for a bit of advice, as the topic says, our track car is an s13 with an s15 front running a built rb26dett with new garrett -7 turbos. It will be going in for a tune to get the best out of the new turbos and E85 in a week or so. Question is... I haven't got any heat shields on the manifolds, turbos or dump pipes. Is this going to be an issue? There are no wires or rubber hoses as all non essentials have been taken off.

[No Crust Racing]

Not an "issue" per say, but there's plenty of benefit to keep the shields in place when considering under bonnet temps.

You could leave them off and go an R34 GT-R style bonnet duct.

So long as everything is clear of the area you'll be fine. I don't run heat shields on my turbo/manifold (only a CA S13 though) and I have no issues with water/oil temps.

See how you go during tuning, if there's an issue go from there.

[R31Nismoid]

The heat shields certainly help with keeping heat in places and out of others... In a tight S Chassis bay, it's even more important you would think.

Be interesting to see another result of -7s on E85, it seems so far that those turbos just don't give the gains that larger ones (mid range and top end) do when going to E85. Be sure to post up in Forced Induction for people to have a look-see

[Aazzy]

Definitely will post up results, I've never put any of my cars on e85 so I'm a little curious myself to see what's going to be the result. Thanks for the info.