Track results with my Limited

[TexasT]

Jim has fairly fresh valve springs as he sent me pix of his valve spring tool so I can try and make one for me. I on the other hand have some 980 in a box and need to be installed. Should have done it when I had the head off but it just didn't happen. I did a leakdown of all six when I did the hg. Couldn't begin to remember. I guess I need to do another.

[gusszgs]

Yep, I put the comp 980's on the heap about around 3-4 yrs ago.


Of course I bloody well can't find my psi cylinder readings. I'm going to re-do it tomorrow so I post up some fresh numbers.

[Steve Wood]

Pretty sure I already told you to get Brad to look at a pl log.  If the car does not gain but 100-200 rpm after the shift into third, you can pretty much figure a valve spring problem, or a cam/lifter problem.

Even at a relatively low boost, the car should be looking at 116-117 mph at the line-looks like two different problems to me but I am a zillion klicks away so what do I know?    the Coriolis Effect may have changed since you guys elected Jr.

[daveismissing]

.... since you guys elected Jr.

Don't hang that sh*t on me,,,

[gusszgs]

Well, like they say, Rome wasn't built in a day.    I'll get the comp #'s on the ol girl in the morning and post them up

[gusszgs]

Ok, got some numbers finally. Sorry my compression tester seemed to have grown legs and yesterday was a holiday. So I went out and picked up a new tester this morning.


K, this was done with the motor warmed up to temp with all plugs removed and at WOT.
These are the psi readings I got wilst cranking the LC2. 


1 - 150            2 - 145


3 - 145            4 - 145


5 - 150            6 - 150

[Steve Wood]

very good numbers!

[gusszgs]

Thanks Steve, numbers about where they should be correct?


I had it out last night and the car was running stellar....... although nice cool air to boot.


When I had the plugs out for the compression check I could tell she was definitely running pig rich. I pulled 6% fuel from the MAF translator and that has seemed to really make a difference.


I was only out for maybe a 10 mile cruise and when I got home I thought just for curiosity sake, I'd pull that # 6 and see. Much cleaner! Maybe Rich will post a pic of before and after for me. I'm too stund to figure out how to post pic still.  [size=78%]   [/size]

[TexasT]

Jim ask me to post these for him. The set after the track day. A little fat looking.



One after a hard pull and quick shut down . Looks pretty good to me. But I'm no expert.

[Steve Wood]

150 psi is a good compression on a stock engine.  Plug looks good for an alky engine.

[gusszgs]

Rich, the 2nd pic wasn't after a hard pull just after a light cruise last night.
I'm very pleased in the way they cleaned up just with the MAF adjustment.

[Shimy87]

Dont you usually check compression cold?

[Steve Wood]

Nope

[gusszgs]

I did yesterday cause I didn't want to fill the garage with LC2 farts. I pulled all 6 cranked it over several times and began procedure.


Then, thought I better do it hot and to quit being such a suck. So I flamed her up and got it hot.


The difference just for shytes n giggles was appox. 10 psi from  hot to cold.

[gusszgs]

Ok, managed to get back to the track yesterday after solving my brake holding issues.


Best time prior to yesterday was 12.11 with a 1.95 60' last fall in nice cool air. Yesterday the car ran a best of 11.8 @ 113 but managed a 1.69 60' the boost was ranging from 23-26 approx on the PL file......not sure why that is.


Only changes made were some new shocks (all 4) and a fancy schmancy solid MAF pipe.


Still not the mph I'd like but beggars can't be choosers. Maybe a 28" tall tire would help, also it seems a little on the fat side as the 02's were never below 780-790ish.


Really glad to get the car into the 11's and moving in the right direction again. I've struggled this year to match the 12.11 of last year.