ROCKETW19

are these normal? my IATs droped back to 100ish very fast but jumped to 160 very fast also. i only went from 0-120mph 2 times there was to many people out. 190 on the coolant will bringing this down help performance? or is it just intake? i have a PTE 160 thermostat on the way anyways but just curious.

Jrocket

What IC kit do you have or any at all? Do you have the IC kit seperated from the engine coolant circuit? Does the pump run full time or not?

ROCKETW19

i have the renntech kit. im gettin the pump to run all the time in a couple of weeks when my car goes to adam. so right now it only goes when the ECU tells it. i also have the -10 star fan mod

Jrocket

Im not sure but does the Renn kit have the system seperated or not?

ROCKETW19

my guess is no! but only a guess?

blackbenzz

What were outside temps like?

Jrocket

That was my next question then?

sang55

Rocket19,I checked my IAT 120 to 135 and my coolant temp 170 to 190 all the time when I run hard from light to light .outside temp 90 degree So I think your IAT were a bit high . My set up is 10c fan , johnson c090 ( run all the time ) pte 160 T-Stat .You should have the pump run all the time .Hope this help

chiromikey

iirc, the renntech unit doesn't separate the i/c and engine coolants. if you haven't separated the coolants, then the lower temp t-stat should help a little. to be honest, your i/c system is behaving no better than a stock system and you're not the only person to datalog high iat's with the renntech i/c kit.

wiring the pump to be on all the time is not going to offer much improvement over it being controlled by the ecu. i have my pumps wired to a manual switch so they're either controlled by the ecu or the switch. i'm also able to easily monitor when the pumps are running and the only time the ecu has the pumps off is for the first 30 seconds after a cold start in the mornings (i live in az so the ecu may not have the pump on all the time in cooler weather but i won't be able to test that theory until it cools down here).

Jrocket

Seperating the 2 circuits is a must imo.

ROCKETW19

only 80 outside! i wonder if the pump can go bad on the renn kit? chriomikey the other guy with high IATs dont count he has crazy things goin on under that hood. what is the highest my temps should get? this will also cause my car to fall on its face on the back half of the track?

Jrocket

Very well could be.It depends on what the IAT's were at the first part of the track and also how fast they started to climb.

Ive never heard bad about the renn pumps,but Ive never heard good either.I'd swap that pump out to a CM30 or CM90 and seperate the two circuits.Very easy to do,Adam can do it no problem.If not,one of us can guide him through it.

I made my own IC kits but havent got around to making more brackets for the heat exchanger yet.

chiromikey

lol, the "other guy has crazy things going on"...and you don't? you need to keep iat's as low as possible but under 140 is key.

ROCKETW19

do we have documented proof that seperating the circuts work? im am probably the stupidest member on the board but i cant see why it would help. i would think it would hurt it if anything? but like i said im stupid.

chiromikey

figure engine coolant averages 190*. i don't know what temp i/c coolant averages but i would estimate around 100*. if they mix, the engine coolant is going to tend to raise i/c coolant, making the i/c system work harder than it already does, and defeating the purpose of keeping iat's as low as possible.

documenting separation of the circuits would be nice to see and i wish i would have taken the time to do it. a while back i did posted some datalogging info with the i/c pump hardwired on a stock system. comparing the ecu controlling the pump against having it on constantly, datalogging showed little measurable difference.

imho, priorities are a good pump, separating the i/c and engine coolant, a larger heat exchanger, and if money is no object...an improved i/c core.

Jrocket

Im going to agree with all of that.I wish I had done some testing as well but really its a no brainer.Seperate and be done with it really.

ROCKETW19

ya duh i told you i was stupid the engin was 190 so thats makin the car hotter i get it.
money is never a object if i want it. (come on bro i got the super sprint system.lol.) how or what improves the IC core. i will at least check the pump seperate the 2 and look into the IC core..
that sucks im just now finding out my car was runnin hot cuzz i goin to the track on friday dammit.

chiromikey

the only systems i know of that address the i/c core are the slr style systems which are currently priced around $16k. is money still no object? (i'm NOT implying you can't afford it, i'm simply saying it's hard to justify for 20-30hp.) if i was willing to spend that kind of money on an i/c system i'd custom develop one that would out perform the slr system.

good luck tomorrow!

ROCKETW19

you got me that is way to much for nuttin. thanks

SleeperX

Who is this other guy? You should definitely talk to Adam about seperating your IC system. How do you like the datalogger. Addictive isn't it?

Zod

if you do not mind me asking what size pulley are you using?

ROCKETW19

im using EVOtech not sure the size but its the same as ASP?

sleeperX i cant even drive with my eyes on the road! i wont give up the guy with crazy stuff under the hood.lol. but i cant wait to see what he runs cuzz we will have identical mods! im guessin 10.99 all motor

ROCKETW19

i have some good datta now just driving around my car will stay around 100 + or - but a simple burst from 0-70 got my temps to 136 and was climbing very fast. i think i have a feel for what my car does now.
i will seperate the 2 systems rum the pump at all times when on. i will do this and get the numbers to see if/how much difference there is. ill keep you guys posted.

ChicagoX

Was the system bled under vacuum after install?

Just curious.