3.55s 3.73s 4.10s

[jlg333]

What is your setup? You have a twin screw and 4.10s but only running 106mph in the 1/4? How many lbs of boost are you running?

I think you have more issues..... but, regardless, all you need to do is get a set of DRs for the track and you should have all the traction you need at your power level.

Thats exactly what I said! I have the DOB SC running 9lbs of boost, 4.10s, stock suspension except my H&Rs super sport springs tuned by Lito

Thats it

Also, i've been having quite a few IC flow issues... flow stops randomly, about 5-8 times total in 2-3 months

 

[psfracer]

Ok, well when it comes to hp--one can simply look at the mph (because ET has many factors).

on your best pass, what is your 1/8th mile ET/MPH and what is your 1/4 mile ET/MPH.

A twinscrew car at your power level should have a mph difference of about 25 mph from the 1/8th mph to the 1/4 mph. Are you only doing 81 mph to the 1/8th?

 

[jlg333]

Ok, well when it comes to hp--one can simply look at the mph (because ET has many factors).

on your best pass, what is your 1/8th mile ET/MPH and what is your 1/4 mile ET/MPH.

A twinscrew car at your power level should have a mph difference of about 25 mph from the 1/8th mph to the 1/4 mph. Are you only doing 81 mph to the 1/8th?

86.89

 

[psfracer]

Ok, that is what I thought. Your car is pulling timing on the big end, because to only gain 19mph from the 1/8th to the 1/4, its obviously laying down.

I suspect your IATs are very high, and the tune is pulling timing (which is what it should be doing).

If you are doing basically 87 mph in the 1/8th, that should be 112 in the 1/4, minimum. Many guys running 12 psi doing 119-121 in the 1/4 to give you an idea.

 

[psfracer]

So, to recap (if it isn't obvious):

gearing is not your problem.

 

[Riptide]

Houston gets pretty hot right? Guessing that could be contributing.

 

[psfracer]

Or, as he hints above, he is having problems with his IC setup. Or both.

 

[jlg333]

Ok, that is what I thought. Your car is pulling timing on the big end, because to only gain 19mph from the 1/8th to the 1/4, its obviously laying down.

I suspect your IATs are very high, and the tune is pulling timing (which is what it should be doing).

If you are doing basically 87 mph in the 1/8th, that should be 112 in the 1/4, minimum. Many guys running 12 psi doing 119-121 in the 1/4 to give you an idea.

bad281 just told me the exact same thing... gonna take the car to the track so he can look at it and log some runs. Crownaviation suggested i switch to a bottom end fill.

I really appreciate it, went from gears to bringing up questions about my 1/4 speed and figuring out that my ic flow is the problem

 

[Riptide]

What kind of IC and pump setup is it? If you take the cap off with the pump running are you seeing pretty strong flow rates or is it just barely moving?

 

[jlg333]

FML, I just now remembered when I was doing logs for lito my IC would flow just fine at the beginning of the pull, i made sure it was flowing, but when i sent the log to lito my IATs read 198-201 at the end of the run

i completely forgot about that and never went back to fixing the problem...

 

[psfracer]

Ok, good information.

When I used to run the whipple, my IATs at most would see a high of 140, but often it would be around 105 to 120 (just depending on how long the car cooled down, how much ice i used, and weather conditions).

So I guess I am saying 201 is really fucking high--especially for running only 9lbs.

 

[jlg333]

What kind of IC and pump setup is it? If you take the cap off with the pump running are you seeing pretty strong flow rates or is it just barely moving?

I honestly have no idea, it just came with the kit, never took a look at it. When i take the cap off it flows strong, water shoots out and everything. It just gets a lot air pockets, randomly.

Ok, good information.

When I used to run the whipple, my IATs at most would see a high of 140, but often it would be around 105 to 120 (just depending on how long the car cooled down, how much ice i used, and weather conditions).

So I guess I am saying 201 is really fucking high--especially for running only 9lbs.

hahaha yea I got that part... my IAT is 130-140 on average
I wonder why my flow stops at WOT, or why it gets air pockets... A few days ago I had the biggest air pocket that i've had to date.. my cheeks were going to EXPLODE, it took me for ever to get the flow going

 

[Riptide]

Either air is getting in there somehow, the flow is crashing out, or you just have a garbage heat exchanger and pump on a real hot day with a heat soaked car. When mines heat soaked it is in the 130s while at cruise on a 80 degree day. Perfectly normal for the setup I have. If I were racing the car I have no doubt it would be getting near 200 at the top end of the attempt.

 

[psfracer]

A few days ago I had the biggest air pocket that i've had to date.. my cheeks were going to EXPLODE, it took me for ever to get the flow going

Got to lay off the fiber. Too much, too much.

 

[Riptide]

lol ^

So if air is getting in there. How? I have a guess.

A line clamp not being tight enough. Might be on good enough to prevent liquid from coming through but air might still be able to find a way in. Ditto with the reservoir cap. Might have a problem there allowing air into the system.

Ideally, and typically, the pump running with the cap off should be able to clear out the air. Especially if you spend time pinching the lines as good as you can.

I have a youtube video of my flow as seen from the reservoir. Search for kenne bell intercooler on youtube. You might find it that way. I'd link if I could from work but I can't. You can see an occasional bubble float by but that's it. I was told that is normal.

Also when the car is running the flow is much more turbulent than with it off. Normal AFAIK.

 

[jlg333]

Got to lay off the fiber. Too much, too much.

HAHAHAHAHA should have read what i wrote before submitting

lol ^

So if air is getting in there. How? I have a guess.

A line clamp not being tight enough. Might be on good enough to prevent liquid from coming through but air might still be able to find a way in. Ditto with the reservoir cap. Might have a problem there allowing air into the system.

Ideally, and typically, the pump running with the cap off should be able to clear out the air. Especially if you spend time pinching the lines as good as you can.

I have a youtube video of my flow as seen from the reservoir. Search for kenne bell intercooler on youtube. You might find it that way. I'd link if I could from work but I can't. You can see an occasional bubble float by but that's it. I was told that is normal.

Also when the car is running the flow is much more turbulent than with it off. Normal AFAIK.

see thats the thing, I'm guessing that the air pockets get super intense because nothing works unless I stop at the store and pick up some water and manually make it flow... i'll have the pump running without the cap for several minutes and nothing, i'll even sit there pumping on the lines and still nada

its become mandatory to carry around 2 gallons of water and my flat head everywhere I go.

 

[Riptide]

Not understanding that. You have to add fluid to the system and then it starts to flow?

 

[jlg333]

Not understanding that. You have to add fluid to the system and then it starts to flow?

i have to disconnect the hose that flows the water back into the reservoir, i place my thumb on the opening of the reservoir and I blow into it to force the water through the system, water will then start coming out of the hose I removed... I blow until the water level in the reservoir gets really low then I add more water, then blow again, and add more water. I repeat that until water just starts getting sucked in without me having to blow into it, and the air pocket shoots out of the hose. I then connect the hose back on and keep adding water as it flows on its own. Then it starts working.

 

[Riptide]

So sounds like air is definitely getting in there. You take steps to correct it (temporarily) and it goes away for a while. Then the problem returns.

Check your clamps and make sure they are not a problem, and the cap, and also make sure you don't have any U's in the system where air could gather and get trapped. High points like that can cause an issue. I have some stuff at home, pics, that can show examples but can't get to them. Someone else here who has more experience troubleshooting those types of issues might chime in and help you out better than I can.

If I get time tonight I'll throw a few links up for you. Sorry to hear about the issue, I know it's frustrating.

 

[jlg333]

So sounds like air is definitely getting in there. You take steps to correct it (temporarily) and it goes away for a while. Then the problem returns.

Check your clamps and make sure they are not a problem, and the cap, and also make sure you don't have any U's in the system where air could gather and get trapped. High points like that can cause an issue. I have some stuff at home, pics, that can show examples but can't get to them. Someone else here who has more experience troubleshooting those types of issues might chime in and help you out better than I can.

If I get time tonight I'll throw a few links up for you. Sorry to hear about the issue, I know it's frustrating.

no problem, iF you can get those links for me when you can it'd be great! Thanks for the suggestions and helping figure out what the problem was