Iliess

Okay, i have a turbo charged 13b that i am putting in a dune buggy. I am running the stock 550 and 720 injectors that have been cleaned and matched. The turbo is a t60 turbonetics, i am running the microtech 8 for ecm. I was wondering what is the smallest radiator that i can get away with, it does have a good sized intercooler on it, also an oil cooler. I was thinking something like an aluminum civic radiator with a fan, the oil cooler is also on a fan.

Turbo II Rotor

iTrader: (2)

Are you running 6psi or something with those injectors?

Evil Aviator

Wow, that thing is going to be silly-fast.

The size of the radiator is going to depend on the conditions in which you drive the car. Rotary engines tend to require a fairly large radiator, even with a good oil cooler and intercooler.

Fans are only intended for use when the car is stopped or moving very slowly. A moving fan will usually start restricting airflow to the heat exchanger when the vehicle reaches about 40mph.

Those injectors are good for about 300bhp, which is well over 6psig boost.

Iliess

Plan was for 10 psi

I have a stock radiator out of a rx7 but i want to go with aluminum for looks, a civic radiator is pretty small but if i recall the.
I also have an aluminum 26.5" by 18 in by 3/4 wide radiator.

SDrotary-FC

on the ones i've built i've needs a pretty big rad (and fans) to keep it cool( i used ron davis ones $$$ or try koyo or corksport.com for less $$). and how is the oil cooler set up (i usallly run sideways with 2 small fans)

post some pics so we can see what youa re working with-

Iliess

The other radiator that i have is a ron davis. I am going to run the oil cooler up on the rear support bars. The intercooler is attached to the rear of the buggy. The only problem i am going to have is the rear bars that run down to the frame are going to hit the wastegate so i have to cut the bars and re direct them around it.

SDrotary-FC

the ron davis should work fine (what fans are ya running?)

glhs0867

Bro your going to kill yourself..My good freind has a 13B N/A 6 port all stock except 4 barrel and custom pipes on a rail buggy and it runs low 10's..No joke..When we drive it around you can't even see it accelerates so fast..its very scary.. a 13b turbo is way to much power..

PS: your gonna need wheelie bars..trust me..I know.

SDrotary-FC

you guys must have never been to the desert (glamis/gordons etc..) you ned a lot of power to get up the big hills ( if your going to be racing LS1 and subaru buggies you going to need some big HP#) thee are many 13b turbo and a few 20b (the big dogs)


with just a n/a you'll be racing the lowest of the VW guys.

Iliess

Thank you, i am from michigan and there is a state park, silver lake that is 2000 acre sand dunes park right on lake michigan. There is some bad *** cars out there that i kind of want to run with. As for the wheelie bars i really do not thing i am going to need them that bad. The suspension in the back will be soft enough to squat when i take off, i may need them in the top end though. I have friends with pinto engines and they are heavier than the 13b, they are really *** heavy and barely wheelie. I am also running 3x3 trailing arms so this should also help. My digital is up at my apt, i will try and get it when sometime and post some pictures.

SDrotary-FC

i found a old pic from 2001-02 era



13b-rew powered made about 350hp

Iliess

What size turbo did you use?

SDrotary-FC

he had bnr's (i wish i still had some better shots for you he had a trick rad. shroud setup too, check over on the race-dezert.com forums for some rotary buggys pics/info)