rebal

well today I got the cooler in, and out for a test run i went....
with out intercooler my boost #s are 48-49 psi...
with the bank intercooler in boost # are 38 psi... I think thats a good number.I checked the cooler after a good pull and its working real good the turbo side was to hot to keep my hand on and the other side was cold to the touch. so I will have to say im happy with the cooler mod. except for the grill. I bought a 91.5-93 grill kit but it will not work with a intercooler on the 88-90 trucks, with out a core support change, if i didnt have the cooler I could make it work by doing the head light mod. but no way with the cooler. so now I need some input, do i buy the banks grill,make a nice billit grill or is there one out there that will fit?
Robert

wannadiesel

Glad to hear it's in and working well. How much did it drop your EGT?

fearthedeere

whats the price on one of them intercoolers I called Banks and got the run around, go figure.

rebal

hey wannadiesel I need to hook up the TT and see how high i can get the EGTs but so far 1000 is as high as i got it before I could hit 1200+ with in 1/2 mile of wot


Fearthedeere,I payed $1003.00 for it from a local diesel shop it was cheeper from him then direct from banks...GO figure

BC847

Installed mine today. Got pretty much the same results.

With a baseline of 0 to 75mph (WOT) and 35lbs of boost, the EGT's were approx 1300*F max. (This was using the stock aftercooler).

Thus far it appears I can do the same run with 35lbs boost and EGT's of approx 1100*F.

Neat!

wannadiesel

Dang! Maybe I should try a better intercooler before I give up on the hybrid turbo. I wouldn't have expected a 200 degree drop on a factory intercooled truck.

BC847

I need to revise the above as I didn't consider it was much cooler last night.

A more accurate figure (now that I've drove around a little more today) is a solid 100*F EGT drop over my stock intercooler.


Still neat.

rebal

it surprised me just how hot the air coming out of the turbo really is I cant touch the intercooler on the turbo side yet the other side is cool to the touch . I do like the fact that im making the same power at a lower boost and not having to worry about granading the turbo

it was a good mod and now the power is useable for towing

sammy340

Rebal

I see you went with a banks intercooler. Would a intercooler out of a 2nd gen truck be better then a stock 1st gen one? I have access to second gen intercoolers , so i wonder if i should save some good coin and go with the second gen intercooler?

Right now i can hit 1200 F quick with no intercooler and the stock baby H1C, so i have to do something quick!

Alec

Your turbo is pretty mch working as hard as it ever did. Your head and pistons might thank you, though.

rebal

sammy340 I dont know the dimensions of a 2nd gen cooler or how well they function but if you would like the dimensions of the banks pm me and ill send them also the banks cooler has a brace built it to it for the hood latch support and 2nd gen coolers dont ,but you could fab up somthing and you need to see if your grill will go back on 88-90s need the banks grill

Monty

Here are the dimensions for the 1st and 2nd gens

https://www.dieseltruckresource.com/...ht=intercooler

Bushy

I think I've posted this before but here it is anyway....

This is from Isspro information regarding the use/need for pyro's.....
For every one (1*F) degree rise in ambient temp, the EGT will rise three (3*F) degree's.
So, if you can smack down your inlet temps you will see ( to some degree) an incremental decrease in EGT's.
Now, add in a good/wide map on a turbo and you have the workings of a decent, efficient system.
Just keep the turbo in it's map is all.
The more common hybrid '35's have a map width enhancement which allows us to run up into the mid 30's for boost,... roughly 36-38psi..... that is a fair bit better than, say, the more nominal 28psi for a stock '35 and even better than the 24-26psi of a stock H1 series turbo.

pb.....

PapeCAT

I've seen the billet grills for first gens at www.acmetruckparts.com
they have the square or round bar style.
not too much $$ either.
Not sure if the banks ones are different, maybe you would need to slightly mod the acme ones. BTW they have a lot of other body parts & accys as well for first gens