On the Horns of a dilemma

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grandwazoo

New Member
Joined
Dec 27, 2003
Messages
89
About 3 months ago I became the proud owner of a "Basket Case" 1987 Grand National.

The previous owner was not terribly interested in doing things the right way, or keeping records of what he had done. It took me 3 months to get it to pass safety and emmissions testing, but finnally it is road-worthy and has become my 4-wheeled mistriss, much to my wifes dismay.

I have tons of work still to do and love every minute of it, but I have reached a crossroads.

The previous owner did a lot of performance mods, a larger cam, Ford Blue Top Injectors, and who knows what else. The area expert suggests I return the engine to more stock, put an original cam back in, original injectors etc.

I like the idea of better performance, but right now, it definately does not run as well as it should. (My theory is that the new injectors/cam went in, but the chip was not replaced)

The question is should I work with the mods and try to tune it in, or drop back to more stock.

I'm sure most answers are going to be, it is a matter of personal preference, but I also want input as to which we yield a "better machine" not just faster, but a mechanically sound marriage of performance, efficiency, drivability and not destroy the engine in the process.

The poor girl is fast as hell, but sometimes she sputters when you gun it, sometimes she dies when you let off the gas quickly, nothing terrible, I know how to deal with it, but I want everyting to run well, look good and not have any dirty little secrets under the hood which are embarassing when someone who knows the right way to do things looks under the hood. (right now I am looking for a new passenger side wheel well to replace the one the previous owner cut a gaping hole in to vent his turbo (which also melted my windshield wiper reservoir)).

Input is appreciate, and be gentle, I am a newbie, and this is my first real project car, so sometimes my response may be a dull stare.

One easy question you can answer, what info do I need to have a chip programmed for the car? That may be my best first step.
 
I would start with a Thrasher chip from Scott231 (you need an adjustable fuel pressure regulator)
Do you have a scantool?
I would check the IAC for the dying issue.
 
Don't return it to stock unless you try and try to tune it and something really seems off. As was said, get a scan tool and a new chip.
 
from what i've heard the stock cam is what you want untill your down in the 11-10 sec. i dont' know if i agree with that, but i've only had experence with a stock cam, so who am i to say.

i'd definatly keep the injectors but find a good chip for it. ruturning the car to stock will not help make it a better car. there are a lot of 11 sec. cars out there that are driven where ever and whenever and have no problems.

just start finding problems and fixing them. that will keep you busy for a while;)
 
Originally posted by denn454
just start finding problems and fixing them. that will keep you busy for a while;)

Considering this car, that is the truth, today I have spent my time with wiring diagrams trying to find out why when I turn my headlights on my tach and boost go out, and my blinkers won't work.

As I said before, BASKET CASE.
 
BTW if you get a chip, blue tops are rated 36lbs. Wiring problems suck. Good luck with finding you gremlins.
 
Could I make a suggestion.....

I don't mean to knock Thrasher chips....I had (3) for stock injectors and I loved 'em before I put my 60's in. Can't beat the price! You may be better served with a chip burned by a custom chipmaker, like Eric @ Turbotweak or Jay Carter or one of the other reputable burners. The reason I say this is because you said the car has a cam and possibly some other mystery parts. If you buy a Thrasher it is set up for a particular combo.....not custom. That means no changes or adjustments to the programming to accomodate your particular combo. To get the most out of your car, get a custom chip. That way you can monitor how your car performs (w/ a scantool) and have changes made to suit YOUR combo. This would be particularily helpful if you don't know exactly what's in the motor.
 
Thanks I have looked at TurboTweak, and was planning on going that way. I'm just waiting for a call back from a previous mechanic who installed the cam to see if he can track down a receipt so that I know what cam to tell the chip programmer that I have.

from his site he says he needs the following info:

-Injector type
-Turbo
-Intercooler
-Torque converter
-Head modifications
-Camshaft
-MAF sensor (stock or MAF Translator setup)

I can answer everything except:
-Torque converter
-Head modifications

Hopefully with a little more research/inspection I will have all the info.
 
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