I just put the 2.3 turbo motor in my 73 Capri. I went to time it, had all the marks perfect and sen it at 10deg. Runs good untill I get into the boost then detinates real bad. I then timed it by ear and when it get into boost it does fine. The thing is, when I put the timing light on it showed it at 25deg. What could be going on? Is the timing light just off? This is all while the timing plug was undone so I know it was set right. Is there a way I could have put on another crank pully from a different car and its just showing that its off? I had 2 to choose from and I grabbed the closest one.
Don't worry, fairly normal.
You timed it with the 'spout' out. As soon as you plug it it they ALL jump to 20*-25*.
As for the detonation:
Check your codes. I bet you have a KS code. If you don't have access to a scanner, put in a NEW KS and see what it does. If you want, you can just un-plug the KS, but I would do the new one first.
Bill
I reposted there. Oops! I did the 25 with the spout unplugged. Then its off the charts when plugged in.
Well I talked to Bill and we figure it was the knock sensor. I unplugged it, set the timing at stock and went for a drive. No change. I then unplugged the battery then tried again. Wallah!!! Stupid me. I also reset the tps to .97v and made a big difference as well. I think it was a mixture of the two. Thanks for the advice Bill.
Well, at least for a starting point do the KS; either get a new one or unplug it for a test. (because your car did the same mine did when the swap was done and it was a bad KS)
Let me ask for more details on what you did and in what order.
You 'unplugged' the SPOUT, started the car, set the base timing to 10*, shut the car off, plugged the SPOUT in, unplugged the KS, then drove it?
You did not tell me you had adjusted the TPS at some point (you "re-set" it).
Did you plug the KS back in and try it again?
Glad to hear it's better!
(go get that code reader)
Bill
Series of events:
Started the car, unplugged the spout, set timing at 10*, plugged back in the spout, unplugged the KS, ran the car. No bueno!
Shut the car off, unplugged the battery and plugged back in with KS unplugged, ran the car, ran better.
Checked the TPS, was at 1.05v running so I set it at .90, I know now not to set the TPS while its running. Reset the TPS while key on but not running at .98v and the car ran real good at 10*.
I now want to ask and have been looking on the internet but no results. What is the stock fuel pressure at the fpr? I want to install my 42# injectors and install adjustable fpr but want to know what to set it at to accomidate for the 42#ers?
If you are swapping to the 42* ones, you don't really 'need' the AFPR (DEPENDING). People also use an AFPR to comensate for having smaller injectors.
IIRC: Like 40psi at idle STOCK.
Bill
Thats what I thought I read somewhere but wanted to make sure. I want to up the boost but want to make sure I have proper fuel. I am getting a gauge to make sure but want to get all the info I can before hand. I will also be adding my intercooler prior to that as well. So was that my problem on the ks? I had to reset the ecu?
Could have been. My first Buick would need the battery dissconnected from time to time; it worked wonders.
It would have been better to have read the codes. but at least it's better now.
Bill
Quote from: 2point3turbo on February 07, 2008, 04:12:07 PM
Series of events:
I now want to ask and have been looking on the internet but no results. What is the stock fuel pressure at the fpr? I want to install my 42# injectors and install adjustable fpr but want to know what to set it at to accomidate for the 42#ers?
What computer are you using? If you are going to 42Lb inj with out a tunner you'll need to take OUT fuel pressure. The computer doesn't know there 42 lb and the fuel mapping is for 35lb. Watch your A/F ratio and Adj your fuel pressure to comp for the 42s. You can watch the A/F with a VOM meter just tap off the O2..
A cheap ADj FPR is on the CFI cars just pop the little cap off the top and adj the allen
to ADj the pressure with the VAC line off & pluged.
Why do you need 42 lb Inj? You can make 300+ Hp with 35s...
Mike
I bought them for when I get upwards of 300hp. I dont see the hurt in running them now and run a bit rich to save my engine when I boost over 17psi. I may be wrong and thats why I ask. This is the place to ask as far as the 2.3 turbo goes. Some of those Merkur guys are not to bright. I wil be getting a tuning platform soon but I have to get another la3 first. The other one got misplaced and ruined. I now have a pk1.
Yes, you can do harm if you are running rich!!
When we talked about the 42*s I mentioned that I was still running the 35*s and I have more to go before I need to swap them.
You seem to want to get aggressive with the set up right away, you should really monitor the tune carefully. You want the A/F to be right on, but there is a point where the stock stuff: ECU, VAM... will not let you tune properly.
Bill
I guess I was a bit hasty on the hp needs and didnt properly think it all out. This is why you guys are smart and I am but a beginer of tuning procedures. I want to learn more about the tuning part and just using google is not the way to go. I want to start learning how to use the editing software but once again google sucks. I cant find anywhere that teaches the basics on the software. I have all the makings and parts of a fast car its just I dont know when to put them on. Bring me to school.
Bill, I thank you again for speaking with me and I listened to everything but my mind says "more info needed". I know my questions seem like I am going to fast and wanting to much but I am just gathering info and learning the processes. I dont want it all tomorrow, I just want it eventually. Thanks again guys.