OK so earlier tonight I ran a 0-60 on my gtech pro. I got a WHOPPING 9.53 seconds. I have good plugsand wires, good cap and rotor, and a shitty fuel filter (75 miles on it). Other mods that count are in sig. I was previously getting low to mid 10s before the Dennis/Carl carb. I can find out what jets/bleeds I have later if someone needs this info. My timing should be pretty close to stock settings, although I am not exactly sure as I have no timing marks. I hear no detonation sounds (I know what it sounds like).

Ideas???

-IanS

 

Anyone else know what their 0-60 time is? If the timing was advanced too much and did not cause detonation, would this cause a loss of power/acceleration?

 

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I don't think your timing is advanced too far. In fact, you might want to start advancing until you knock, then back it off from that point. I'm guessing your issue has to be either fuel delivery (psi setting) or timing. I don't know what my 0-60 time is, but I'm sure its a bit faster than that (and I have stock ports).

Have you considered adding 2nd gen direct fire? This would be a good option to get you by until the new TT units are available. Just remember not to cut the ignitor wires when you install it, then when you get the TT the work is 90% done already. Ignition can make a HUGE difference in the performance of these motors, so don't underestimate that aspect.

You don't have a brake dragging, do you? I'm sure you ought to be faster than that. Throttle linkage adjusted properly to ensure wide open throttle is really wide open throttle? I don't know. Probably something really simple though. Good luck...

 

I previously had an issue with the throttle not opening 100% but that is fixed now. I was asking about my timing because I have no idea where it is set. When I had the stock carb, I had to retard it considerably before it would stop making a sound that I later found to be detonation. I have 2 blaster 2 coils that I am running now and honestly had planned on using a diamond coil for the trailing and hook my dlidfis back up. It really feels like a fuel issue. Almost exactly like when the fuel filter gets clogged up, about 5K in third gear running wide open and I suddenly lose power. 5 seconds of coasting and I am good to go. I have my crappy 0-15 psi fuel gauge at 3.5 and thought about cranking it up to the 4.5 area to see if this affected anything. No brakes dragging as far as I know. No sounds are coming from them that could be considered abnormal.

 

Those fuel pressure gauges are known to be very inaccurate. Here's my ghetto method for figuring the fuel pressure that is needed:

Go to an empty parking lot, and start turning hard left handed circles like it was a skid pad or something. If the carb does not flood and cause you to lose power after a few seconds, then increase the fuel pressure. Keep doing this until you reach the point where you are flooding out, then back it off "a bit". Not very scientific, but it got me running pretty good with my "Sterling/Carter/Holley/no fuel pressure gauge" setup.

I already mentioned how I adjusted my timing, since my timing light took a dump on me.

Also, from what you described it does kind of sound like a fuel filter issue, but maybe its just a matter of too low a fuel pressure. I wouldn't trust that gauge if I were you.

Just to double check the brakes, you can put the car in nuetral and see if it rolls freely. You never know...

 

If you had to retard your timing from stock to get rid of detonation, then your marks are not accurate.

 

He doesn't have any timing marks...

 

Well, I figured out a few problems that my car has. 1, the rear brakes are dragging for sure now. I am going to cap them off and see if it helps. I have done it before and my braking performance wasnt hindered very much at all. 2, my FPR is bad. I currently have a dial one so now I have a reason to install my new Holley one. I have also advanced my timing and have seen no ill effects as of yet. I should have the brakes capped and the new FPR installed later today as long as it doesnt rain which its supposed to.

ON a side note, I have found a good condition gas tank that I am saving for so I dont have to worry about my fuel filter clogging up so fast. I have also purchased a bad engine that has notches in the main pulley so I can have timing marks. My current one doesnt have notches. Sterling or Carl, is an SA carb worth anything? I have one, if you want it let me know. I have 3 83-85 carbs and this SA one. If you need them , I will cut you a sweet deal.

 

Glad to hear that you're getting it narrowed down...

 

OK, so I figured out that it was not my FPR that was bad but simply my pump was not pumping as much as it should. I took out the holley and put in a carter. Have not tested it as of yet but will do so later this evening. I also am thinking that my pump has been on its way out for a while now and I just never realized it.

I am pretty sure that my holley pump was about a year and a half old give or take and had roughly 4000 miles on it. 4000 miles is total bullshit if you ask me. Its like, yeah I change my oil and rebuild my fuel pump. Screw that noise. Anyways, so now I am a holley fuel pump hater. I will have an updated posting when all is ironed out and give my new 0-60 time which should hopefully be at least 3 seconds lower.

 

I noticed in your sig. that you are running a 1-4 fpr. The Holley carb requires 6 psi. That could be a little of your problem.

 

I have the modded nikki carb and holley everything else (until now).

 

He's not running a Holley carb - he is running a modded nikki.

Ian, see how is not that easy to run 8.1? :p

So, do you have the same jets that I had the carb with, or did you do any changes?

Just so you know, trying different launch styles can improve your 0-60, not to mention your tires. IIRC, I got the best time revving between 3 and 4k, then letting the clutch go gradually so there would be just a little bit of tire slipping, then shift at around 8k.