what IAT should raise alarms?

94tbird

4R70W FTMFW
Joined
Apr 5, 2007
Posts
12,732
Reaction score
56
Location
NY/NJ
Your guys temps are normal with the systems you currently have and your setups. ive tried many things to get the temps down. right now im around 140 at the end of the strip with no heat exchanger and a Killer Chiller that isnt at total efficiency yet. I need a larger or secondary pump as well as a slightly larger tank, about 2-3 gallons

You guys should look into water injection, or windshield washer fluid. Cool that charge down a lot. I just added the trunk mount kit from AIS and all I can say is when the pump goes on, the IATs drop. I havent had it to the track since the install (need to find a babysitter ASAP).

give me all the info you got haha
 

dysan

Dis-Member
Joined
Aug 11, 2007
Posts
3,902
Reaction score
12
Location
Williamstown, N.J.
I was wondering if you were going to chime in Ron. Haven't heard from you in a while. Are you planning on coming down next Saturday to Atco for the event? I think I may run since my car didn't go under the 11.5 mark. Once I get the IAT temps under control it probably will but for now it's actually helping to keep me from needing a cage.
 

PNR Welding

Senior Member
Joined
Jul 10, 2007
Posts
2,309
Reaction score
5
Location
Hammonton, NJ
Your guys temps are normal with the systems you currently have and your setups. ive tried many things to get the temps down. right now im around 140 at the end of the strip with no heat exchanger and a Killer Chiller that isnt at total efficiency yet. I need a larger or secondary pump as well as a slightly larger tank, about 2-3 gallons



give me all the info you got haha

I dont have any track runs yet. This week I will be going to get some runs in on a .500 pro tree before the weekend.
Here is a screen shot of my IATs from today on a 13psi 2nd gear pull. You can see how the IATs come down when the meth pump comes on. Its nothing really to compare yet but I just was seeing if it comes on. The real test will show at the track. But as you can see the IATs come down instead of go up. Along with some boost of octane!!!!:thumb:
 

Attachments

  • Datalog from 8-8-10.JPG
    Datalog from 8-8-10.JPG
    167.2 KB · Views: 63

JeremyH

3V Fuel Guru
Joined
Jan 10, 2009
Posts
20,857
Reaction score
206
Location
Virginia Beach
You should do a similar run same day with the meth off to see where iat's would have gone. Are you using an rpm or boost set point for activation?
 

94tbird

4R70W FTMFW
Joined
Apr 5, 2007
Posts
12,732
Reaction score
56
Location
NY/NJ
Im not even intereted i nthe timing advances you can make with meth. Im jsut interested in the decreased IAT temps. I figure the KC will be awesome for the street, and the meth for the track. although both cant hurt lol

The 14th weekend is my last eligible weekend of OT before i start my new job so its unlikely ill be there unless soemthing changes.
 

PNR Welding

Senior Member
Joined
Jul 10, 2007
Posts
2,309
Reaction score
5
Location
Hammonton, NJ
Did you re-tune for the meth?
Not yet, but will get to that if needed to be. My timing is very conservative and my A/F was in the mid to high 11s. Now with 50/50 meth it is pretty good with the meth, 11.0 - 11.4. Seems to lower it about .5 and with running over 20psi of boost, I like the car on the fat side. 11.0 - 11.3, especially when only running 93octane with 50/50.

You should do a similar run same day with the meth off to see where iat's would have gone. Are you using an rpm or boost set point for activation?

Attached is a similiar run without the pump from another day. Same temp outside and around the same starting temp. Im using a boost activation switch. Im going with a progressive controller this week. I should of ordered it with the kit but thought I wouldnt need it. But I can see where it would benefit. Its set at 10psi.

Im not even intereted i nthe timing advances you can make with meth. Im jsut interested in the decreased IAT temps. I figure the KC will be awesome for the street, and the meth for the track. although both cant hurt lol

The main reason I went with meth is cause its cheaper than C16. As you can see my timing is very conservative for C16 and probably had a hard time burning it due to its slow burn. No with the IATs being under control, there is less room for detonation.
 

Attachments

  • Datalog from 8-8-10   3.JPG
    Datalog from 8-8-10 3.JPG
    173.8 KB · Views: 42

JeremyH

3V Fuel Guru
Joined
Jan 10, 2009
Posts
20,857
Reaction score
206
Location
Virginia Beach
Wow, big difference. So it comes on at 10 psi? IM going ot be running 12-16lbs so i figured come on at 8lbs for me.

Hows the progressive controller work? I'm guessing its sprays more as boost rises, what are the benefits of that.
 

Rasmus

Senior Member
Joined
Feb 9, 2009
Posts
2,295
Reaction score
27
Subscribed. Been meaning to give Rodney a call for a little while now.
 

PNR Welding

Senior Member
Joined
Jul 10, 2007
Posts
2,309
Reaction score
5
Location
Hammonton, NJ
Wow, big difference. So it comes on at 10 psi? IM going ot be running 12-16lbs so i figured come on at 8lbs for me.

Hows the progressive controller work? I'm guessing its sprays more as boost rises, what are the benefits of that.

You are right on how it works. The benefits are the spray pattern. You can start it lower and ramp it up and have the pump come on in full at a higher rpm. Now it is set up as on and off. So I have to start it high cause it will just flood the motor. With a progressive controller, it acts just like a nitrous progressive controller. I will start it around 4psi and have it spray full around 12psi. I will have to adjust it from there to see how it works.
You can smell and taste the meth after a pull.
 

Rasmus

Senior Member
Joined
Feb 9, 2009
Posts
2,295
Reaction score
27
againstallodds1; how many nozzles, and where did you mount them? Pre compressor?
 

PNR Welding

Senior Member
Joined
Jul 10, 2007
Posts
2,309
Reaction score
5
Location
Hammonton, NJ
againstallodds1; how many nozzles, and where did you mount them? Pre compressor?

3 nozzles. 2 right before the throttle body and 1 small jet before the turbo, after the MAF. IAT sensor is the the 3rd runner back in the intake manifold.
 

kahmann

Member
Joined
Jul 9, 2009
Posts
713
Reaction score
6
Location
Sacramento
3 nozzles. 2 right before the throttle body and 1 small jet before the turbo, after the MAF. IAT sensor is the the 3rd runner back in the intake manifold.
What size jets are you running?
I've got a single jet mounted at the end of my Paxton, but I've heard that I probably need at least a 2nd jet considering my power level, but I don't know which size to get for that. And if I have 2 different sizes, where does the smaller one go? After the intercooler or before?
 

dysan

Dis-Member
Joined
Aug 11, 2007
Posts
3,902
Reaction score
12
Location
Williamstown, N.J.
A guy at my work who used to be into drag racing thinks that my lacking the belly pan that normally goes under the radiator could possibly be one of the cluprit's in my high IAT's.

I thought I saw a thread before about it and what the part number is but I can't find it. Anyone know the part number for that piece so I can order one and give that a shot?

EDIT: Looks like I got a hook-up to get one from Tillman. They've got a used one that I can get cheap from them. Going to pick it up after work today.
 
Last edited:

PNR Welding

Senior Member
Joined
Jul 10, 2007
Posts
2,309
Reaction score
5
Location
Hammonton, NJ
A guy at my work who used to be into drag racing thinks that my lacking the belly pan that normally goes under the radiator could possibly be one of the cluprit's in my high IAT's.

I thought I saw a thread before about it and what the part number is but I can't find it. Anyone know the part number for that piece so I can order one and give that a shot?

EDIT: Looks like I got a hook-up to get one from Tillman. They've got a used one that I can get cheap from them. Going to pick it up after work today.

All the money that you spent with them and they want to charge you for a shitty cover? :wow:

Save your money James, thats not gonna make a difference. Ive been down this road with the Saleen.
 

PNR Welding

Senior Member
Joined
Jul 10, 2007
Posts
2,309
Reaction score
5
Location
Hammonton, NJ
What size jets are you running?
I've got a single jet mounted at the end of my Paxton, but I've heard that I probably need at least a 2nd jet considering my power level, but I don't know which size to get for that. And if I have 2 different sizes, where does the smaller one go? After the intercooler or before?


The nozzle before the turbo is a 3gph and the 2 before the turbo are 4gph.
The 3gph is 189ml/min.
The 4gph is 252ml/min.
 

dysan

Dis-Member
Joined
Aug 11, 2007
Posts
3,902
Reaction score
12
Location
Williamstown, N.J.
You were also maxing out your saleen, I'm no where near maxing the e-force out yet so something isn't right. There's a few things that may be contributing to my issue(issue with the car that is). I think it's a combination of that shroud/pan and the heat vents toward the rear of my hood. I'm thinking that those heat vents at high speed may be pulling air in like a cowl hood and forcing the air intake to suck in hot air in the engine bay.

We'll see this weekend. It's not like I'm spending much to try this out.
 

PNR Welding

Senior Member
Joined
Jul 10, 2007
Posts
2,309
Reaction score
5
Location
Hammonton, NJ
You were also maxing out your saleen, I'm no where near maxing the e-force out yet so something isn't right. There's a few things that may be contributing to my issue(issue with the car that is). I think it's a combination of that shroud/pan and the heat vents toward the rear of my hood. I'm thinking that those heat vents at high speed may be pulling air in like a cowl hood and forcing the air intake to suck in hot air in the engine bay.

We'll see this weekend. It's not like I'm spending much to try this out.

Nope, when I was on the 3.4 - 3.2 pulley these issues started. That is when I went with the ice box, battery relocation and so on. Then that worked a little better and i added meth after that. I didnt race the car much last summer with the built motor and 2.75 pulley so I dont know how hot they were. But when I was running the stock motor 10-12 psi is when we noticed the iat issues and adressed them.
 
N

navbtcret

Guest
You were also maxing out your saleen, I'm no where near maxing the e-force out yet so something isn't right. There's a few things that may be contributing to my issue(issue with the car that is). I think it's a combination of that shroud/pan and the heat vents toward the rear of my hood. I'm thinking that those heat vents at high speed may be pulling air in like a cowl hood and forcing the air intake to suck in hot air in the engine bay.

We'll see this weekend. It's not like I'm spending much to try this out.


How long did you let the car cool down between runs and what was the outside air temp?

I am running the 2.75 pulley with an 18% overdrive pulley too and my IAT's get that high only when the temps outside are in the 90's and I have not given the car a good 40 minute cool down. Mine does not pull that much timing because of my tune though.

I have install the Afco heat exchanger with the dual fans to help cool the car down in the pits and it works great. I have also relocated my battery to the trunk and installed a bigger reservoir for the intercooler. My water line comming out of the intercooler is always cool to the touch by time I get back into the pits after making a pass, I turn the fas on on the return road and leave them on 5-10 minutes in the pits too. My intercooler pump is wired into the switch also so I run them with the car off.

I have the eh2o pump too and it wired the same way along with the radiator fan so I can cool the motor down until the thermostat closes.
 

dysan

Dis-Member
Joined
Aug 11, 2007
Posts
3,902
Reaction score
12
Location
Williamstown, N.J.
I let the car sit, hood open and I/C pump running for 40min to 1hr between runs. Cool to the point that the coolant temp was close to the "C" mark in the gauge cluster.

The temp was 79-80 degrees on my run that I datalogged so it wasn't crazy hot out at that point.

I'm going to get a larger resevoir and relo the battery pretty soon to see how much that helps. After that I'm going to have to wait so I can pay off my current outstanding bills, then I can start doing more cooling mods.
 

Latest posts

Support us!

Support Us - Become A Supporting Member Today!

Click Here For Details

Back
Top