v8 running on 6

[Jersyboyy]

As most of you know my car dynoed on 6 cylinders.
The majority say the plugs and wires are shot and thats the cause of my problems.

Well today the guys up at Ask Franks First (local speed shop awsome place) gave me some new 8.5mm wires, autolite 25 plugs, wire seperators, and had a talk with a shop about flaring my yipe to fit correctly with my headers so they seal properly. Im going to be working off the price of the parts by helping around the shop and the ypipe was a freebie.

So anywho everything will be put back together tom with new valve cover gaskets and header gaskets so im sure their wont be any leaking from anything, but my question is what else could cause two cyls to not fire.

When you pull the boot off the plug on cyl 2 & 3 it has no effect on the motor at all. Im sure they have compression but ill test that again tom too just to be absolutely sure.
Any thing guys? Could it be something wronge with the distributor it self?

[LTb1ow]

We all saw you jump and scream as proof that your dizzy works well.

[Jersyboyy]

oh sparkplug from cyl 5, had NO GAP.

[sweetbmxrider]

just do the tune up first and we will see where you are at.

[mc73nova]

I race with Frank, he is a great guy and definitely knows his stuff. I'm not sure I would have recommended you dynoing it after hearing how it ran, but I don't like jumping in peoples business. Good luck straightening it out.

[camaroAL]

if you run it again and it closes up that plug once more, u will want to pull the engine and see if a rod is ready to let go. ive seen this tooo often. if u want some tech help over the phone pm me ill give u my #

[Jersyboyy]

i thought the other 2 cyl not firing was my major concerns but their the least now thinking about what you said! Ill pm u tom after i pop in the new plugs and see what happens.

[98tadriver]

lol its probably something basic, my friend. gap your plugs correctly. make sure your piston is up top on cyl one, look at your rotor, see where it points and go from there.

its been a lil while, but i believe firing order for sbc is 18436572 clockwise rotation

[GP99GT]

when you say there was no gap, it was closed completely, or had crap built up in between?

[Jersyboyy]

Closed Completely
Im going to pop off the heads tom night and put some fresh valves in them. While im at it im going to take a look at that one cyl with the messed up plug and see if maybe its the valves or a foreign object got in their or something weird before I go digging into my bottom end.

[Tru2Chevy]

Did you replace the plugs and wires and run it to see what would happen yet?

I would definitely do that before you start yanking the heads off of the motor.

- Justin

[BonzoHansen]

oh sparkplug from cyl 5, had NO GAP.

was it damaged at all? nicks, gouges, etc.?

[Jersyboyy]

Ehh screw it im pulling my motor this weekend and john over at ask franks first is going to go through the whole thing and make it run perfect. New valves if needed w.e it takes hes going to take care of it all.
After this motor is running on all 8a 383 sbc will be being built to replace my current motor.

[Tru2Chevy]

No offense man, but why are you gonna pull this motor out and pay to have it gone through completely just to turn around a build a 383.

I think you're nuts if you don't stick the new (properly gapped) plugs and wires on the car and see where you stand.

- Justin

[Jersyboyy]

Im not paying to have the motor go through completely. Its more of a trade off. Im working for a local speed shop helping them clear house cuz their closing shop and have to be out by jan 1 and they have a TON of crap their.

In exchange for helping one of the guys who runs it hes going through my motor with me helping me pull it and all.
Along with the new plugs wires and all the other good little crap im getting for free.
He even made the call to his buddy at an exhaust shop to fab my ypipe up and their not charging me anything for that either.

The other guy who runs the place needs his crap moved out too and hes more willing to haggle a deal on parts ie: a 383 right out of his suppliers catalog for me, then to pay me hourly which is also an option.

So ill have my motor running perfect AND an option for a forged 383 at a discounted rate or the option for cash so we shall see.

See im not nuts at all i just want a 383 in my car and a 357 as a back up.

[LTb1ow]

Annnnd no interior. :mrgreen:

[Jersyboyy]

Iv got the full interior in my garage and half in the car now...by the time I get my license back ill have full 4th gen leather in it hopefully. I mean I got a year so anythings possible...

[Savage_Messiah]

Annnnd no interior. :mrgreen:


interior is for pussies

[sweetbmxrider]

why did you lose your license for a year? i'm in the same.....situation. and thinking of doing a 383 too.

[Jersyboyy]

Drove with out insurance

[sweetbmxrider]

wow and that is a year suspension? ouch....well its on! build up till licenses are restored! wanna race on pinks? :lol:

[Jersyboyy]

Hell yea you gotta build a low 11's na car tho...ill have some juiceon top of that too so keep that in mind

[sweetbmxrider]

i was thinkin 200 shot.

[LTb1ow]

I'll take you both. In the saturn.

[Jersyboyy]

200 is about right for my 357 the 383 im planning on having done by summer will be all forged so 200 might be the minimum for that motor ;)

[98tadriver]

pending my clutch is broken in and i hook, ill see low 11s tomorrow

[NJ Torque]

200 is about right for my 357 the 383 im planning on having done by summer will be all forged so 200 might be the minimum for that motor ;)

I'll beat you with my lil v6 ;)

[Jersyboyy]

NO WONDER WHY THE 357 WAS ON 6!! DUH How did I not know this from the beginning!? cyl 3 and 5 have huge chuncks of the piston missing from it!! no wonder why cyl 5's plug had no gap. As for cyl 2 it looks good as far as piston goes, that one still wasnt one getting spark tho.
so cyl 2 and 3 had no spark and 3 and 5 have broken pistons!!

All in all 186 hp on 5 cyl is NOT that bad AT ALL ;) Lets see what she does on all 8 with new forged pistons and dare I say it...JUICE?

[WildBillyT]

NO WONDER WHY THE 357 WAS ON 6!! DUH How did I not know this from the beginning!? cyl 3 and 5 have huge chuncks of the piston missing from it!! no wonder why cyl 5's plug had no gap. As for cyl 2 it looks good as far as piston goes, that one still wasnt one getting spark tho.
so cyl 2 and 3 had no spark and 3 and 5 have broken pistons!!

All in all 186 hp on 5 cyl is NOT that bad AT ALL ;) Lets see what she does on all 8 with new forged pistons and dare I say it...JUICE?

How's your fuel system?

[Jersyboyy]

Holly 110 gph mechanical fuel pump(self regulates at 8) fuel filter holley 750 just rebuilt

[WildBillyT]

How big a shot?

[sweetbmxrider]

I'll take you both. In the saturn.

what, out to the bar? what a nice guy! i'll pick up the first round since you're so generous!

[Jersyboyy]

I got round two of shots!

Starting with 150 might try a 200 but not pushing past that.
think thats too much? check this out http://www.chevyhiperformance.com/techarticles/148_0303_small_block_nitrous_blow_up/index.html

[WildBillyT]

I got round two of shots!

Starting with 150 might try a 200 but not pushing past that.
think thats too much? check this out http://www.chevyhiperformance.com/techarticles/148_0303_small_block_nitrous_blow_up/index.html

At that range you need to make sure you have a good understanding of N2O and how you need to set up your car. Make sure you can feed your N2O solenoid properly if you use the existing fuel system and make sure you never run lean- a fuel pressure safety switch is a must. A WOT switch and arming switch are mandatory and a window switch is a good idea. Basically you never want to go lean/short on fuel and never want to spray when you don't want to. If you half ass it or hack it together you will get a nice backfire. If you do and get a picture post it up, because I love seeing them.

[LTb1ow]

what, out to the bar? what a nice guy! i'll pick up the first round since you're so generous!


Oh thanks thanks... :rofl: At least I still have a lisensce... :mrgreen:

[Jersyboyy]

Yea but you still got a lt1 and cant spell to save your life! :moon:


Oh thanks thanks... :rofl: At least I still have a lisensce... :mrgreen:

[98tadriver]

At that range you need to make sure you have a good understanding of N2O and how you need to set up your car. Make sure you can feed your N2O solenoid properly if you use the existing fuel system and make sure you never run lean- a fuel pressure safety switch is a must. A WOT switch and arming switch are mandatory and a window switch is a good idea. Basically you never want to go lean/short on fuel and never want to spray when you don't want to. If you half ass it or hack it together you will get a nice backfire. If you do and get a picture post it up, because I love seeing them.

+1 jerseyboy, youre still quite the noob when it comes to engines, let alone nitrous lol. in all seriousness, do the research on it. your build could go KABOOM in one run if youre not educated on this. N2O is no joke. you will want a few safety items like billy stated. and theres much to learn my friend

and if you knew what a 100 shot felt like, youd change your mind about starting with a 150 shot. anything above that is violent and youll be sure to go into the wall

[LTb1ow]

Yea but you still got a lt1 and cant spell to save your life! :moon:

LT1 > all! :nod: And spelling is overrated anyways.

[sweetbmxrider]

Oh thanks thanks... :rofl: At least I still have a lisensce... :mrgreen:

sweet permanent DD!!!! biatch :-P can you come pick me up? hahaah

[LTb1ow]

AWD dyno.

[sweetbmxrider]

what?

[Jersyboyy]

Granted I dont know much about nitrous im not wayfast either im going to research every nook and cranny before I install any kit.

As far as motors go my knowledge on sbc 350s is growing more and more each day.

When I did my top end I researched alot and in the end had no real hands on help building it but I got it running.

Now as for diagnosing why it wasnt running on all 8 EVERY SINGE PERSON said ignition to me.
I said cam or valves. Turned out it was broken pistons and slightly bent valves.

Oh and I BET the pistons smacked the valves when I initially put the cam gear on wrong and tried starting the motor, and even then I had a member come and help me all day try to figure why it would start...gave him a set of wheels to! messed with timing the whole time...on MY hunch I tore it all apart and found and fixed the cam gear location. & he was a ex dealership mechanic and I even mentioned that to him while he was here.

I figure if im building a 383 or even just rebuilding my 357 with forged internals and low compression with a cold plug im a prime canadate for some juice. Plent of guys run 100 shots on stock bottem ends why would a 150 shot be a push for a forged bottem end?

+1 jerseyboy, youre still quite the noob when it comes to engines, let alone nitrous lol. in all seriousness, do the research on it. your build could go KABOOM in one run if youre not educated on this. N2O is no joke. you will want a few safety items like billy stated. and theres much to learn my friend

and if you knew what a 100 shot felt like, youd change your mind about starting with a 150 shot. anything above that is violent and youll be sure to go into the wall

I

[98tadriver]

im not saying itd be tough on the bottom end. im saying youve never ran a car with nitrous, and you will want to start low on the hp jetting and work your way up my friend. and who was the dimwit who u gave the wheels to? was that the former name jewboyx32? aND after that experience, now you know why that member was an EX dealership mechanic lol

[ZeroCool8891]

im not saying itd be tough on the bottom end. im saying youve never ran a car with nitrous, and you will want to start low on the hp jetting and work your way up my friend. and who was the dimwit who u gave the wheels to? was that the former name jewboyx32? aND after that experience, now you know why that member was an EX dealership mechanic lol


dude thats messed up, i was fired because i got a 3rd brake light ticket and fired me for it not else, and those wheels he bought on his own.

[WildBillyT]

Granted I dont know much about nitrous im not wayfast either im going to research every nook and cranny before I install any kit.

As far as motors go my knowledge on sbc 350s is growing more and more each day.

When I did my top end I researched alot and in the end had no real hands on help building it but I got it running.

Now as for diagnosing why it wasnt running on all 8 EVERY SINGE PERSON said ignition to me.
I said cam or valves. Turned out it was broken pistons and slightly bent valves.

Oh and I BET the pistons smacked the valves when I initially put the cam gear on wrong and tried starting the motor, and even then I had a member come and help me all day try to figure why it would start...gave him a set of wheels to! messed with timing the whole time...on MY hunch I tore it all apart and found and fixed the cam gear location. & he was a ex dealership mechanic and I even mentioned that to him while he was here.

I figure if im building a 383 or even just rebuilding my 357 with forged internals and low compression with a cold plug im a prime canadate for some juice. Plent of guys run 100 shots on stock bottem ends why would a 150 shot be a push for a forged bottem end?



I

A forged bottom end will give you wiggle room if you screw up your AF mixture with nitrous. You had better get squared away with timing and ignition stuff if you plan on spraying anything at all.

What I said above are the basics. You can have a $10,000 titanium bottom end and still burn up your motor and damage parts with a backfire.


http://www.holley.com/data/TechService/Technical/Installation%20Requirements.pdf

[LTb1ow]

You should just swap in an LS1, cause then you would have a nasty car.

[Jersyboyy]

You should just swap in an LS1, cause then you would have a nasty car.


Did shownomercy say to get a ls1 im sure you meant LT1 right?

I like my olds school motors thank you very much. If anything a dart or aftermarket aluminum small block would be the route to go for me but that all depends on funds.

Plus theirs a alot of lsx swapped 6x 7x 8x american cars and even imports its just as bad as a small block in everything was in the 90's and earlier.