75 shot on stock internals.... - Honda Prelude Forum

2PhastPrelude · 03-20-2004, 08:33 AM

whos doing it, and how long have you been. What safty measures have you taken?? What would be needed to run it?

axion68 · 03-20-2004, 10:54 AM

I just rejetted for an NX 75 shot, probably sprayed 6 times in the last week on it. I'm running 1 step colder plugs and pulling 5 degrees out of the timing and don't have any signs of detonation

Preyluder · 03-20-2004, 06:04 PM

You should be fine on the stock internals with up to a 75 shot. I've even heard of people running a 100 shot jetting on the stock Prelude internals. I wouldn't chance that much though. Just get colder plugs and retard the timing and I think you should be okay.

axion68 · 03-20-2004, 06:10 PM

Quote:

Originally posted by Preyluder
You should be fine on the stock internals with up to a 75 shot. I've even heard of people running a 100 shot jetting on the stock Prelude internals. I wouldn't chance that much though. Just get colder plugs and retard the timing and I think you should be okay.

If the truth be known an NX 75 shot is probably comparable to a NOS 100-110 horse shot. I wouldn't squeeze much more than 75 whp on stock internals/fuel system, you are just asking for trouble.

Vapor · 03-21-2004, 08:15 AM

wow. Randy, I would assume you're no longer thinking of this?

There is a strong possibility that Randy can now be added to the list of those with engine issues due to nitrous. He showed up at the MD prelude club meet yesterday on 2 cylinders. He was running a NX 50 shot on stock plugs with stock timing. Upon inspection of the plugs, #2 was melted completely, and #4 was covered in oil.

Good luck Randy.

MugenPoweredLude · 03-21-2004, 09:31 AM

whos Randy?

2PhastPrelude · 03-21-2004, 10:51 AM

me.... yup just had to show off for the camera and do a 60 mph drop on the highway ....... ohhh well lesson well learned..

after everythings figured out who knows I'll probly be able to up the shot with ease...

whats the part number for one step colder NGKs?

axion68 · 03-21-2004, 11:39 AM

Quote:

Originally posted by 2PhastPrelude
me.... yup just had to show off for the camera and do a 60 mph drop on the highway ....... ohhh well lesson well learned..

after everythings figured out who knows I'll probly be able to up the shot with ease...

whats the part number for one step colder NGKs?

NGK BKR7E are 1 step colder than stock. Have you ran a compression test on your motor yet? Sounds like you detonated the end of the plugs off and might have damaged the pistons (possibly started to put a hole through the center). Either way get it checked out before sprayin again.

2PhastPrelude · 03-21-2004, 12:29 PM

no doubt defentally... Im gonna try to pick up some plugs today and see what happends...

as for the spray its off that for the time being till everythings checked out

Padge · 03-21-2004, 07:51 PM

ouch.... im running a zex 65 shot on just one step colder plugs. not nearly as much HP as a NX shot, so ive had no problems at all.

laughin2.2 · 03-21-2004, 11:15 PM

Did you check everything when you first installed your kit(ie. look at the plugs for detonation, wideband O2 sensor, etc.)?

2PhastPrelude · 03-22-2004, 04:01 AM

only had it on the car for 2 days.. I had plans to check the plugs when I got home from the meet but lol. (Im not gonna lye tho I did spray a bottle full throw it the first night I had it... kinda like a crack head that hadnt had a fix in a long time lol)

I think after a long day of thinkin Ive figuredout most of my problems and what may have caused it. First off it didnt help to have the copper ZFR5F-11 plugs in there, but also when I was jumping on the highway to come down to the meet I got tired of vtec taking so long to kick in from where I was use to it being set at (4800 on my vafc) so I decided to take it from the freshly reset set up of 5200 down to 5000 without thinkin about it. Im sure I throw the fuel map off alil there and that may have causes some problems. Also the bottle was only filled with 6lbs. the first time.. and when I had it refilled the day that it blew it was filled to 10lbs. so thats defentally alot more pressure.

well anyways I went out today lookin for some colder plug and all I could find were the sameones that I had in the car to begin with so I picked them up just to see if I was gonna get off easy and maybe I didnt hurt anything internaly (just no bottle till everythings taken care of), but cars still running the same as it was before..... well I guess all thats left is to do a compression check and cry all the way to the bank lol.... live and learn... ohhh well

Vapor · 03-22-2004, 01:40 PM

Quote:

Originally posted by laughin2.2
Did you check everything when you first installed your kit(ie. look at the plugs for detonation, wideband O2 sensor, etc.)?

so his answer to that was "No."

lol. bad randy.

went through your first bottle without checking the plugs a single time.

2PhastPrelude · 03-22-2004, 02:31 PM

wasnt a full bottle... and I had planed to after the meet... ohh well lol cant whin now its my own fought

Padge · 03-22-2004, 02:50 PM

randy i like your sig notes haha... you have a good attitude.

good luck with figuring everything out... and remember to check your plugs

2PhastPrelude · 03-22-2004, 09:29 PM

thanks, I guess Ive got that attitude because I cant be mad at anyone but myself...

well the car sits at the shop tonight... computer scaned misfiring #2 cyl. Tommrrow there gonna throw new plug wires on it see if that helps any, a compression test, and from there a video scope in each cyl to see what can be seen.... guess we'll go from there

Vapor · 03-23-2004, 11:46 AM

oh, and tell Brandy its not her fault.

she was telling kathy that she felt like it was her fault because she was in the car egging you on.

You'll be alright man. Nothing you can't cure in your dad's shop.

2PhastPrelude · 03-23-2004, 05:44 PM

lol yea I think shes got more of a high outta it then I did lol.... ohhh well

well compression test reviled 0 on #2 cyl.... video scope show a really burnt valve and maybe a burnt head, But the pistons look good but theres no telling what the outsides look like. All will tell tommrrow The head is comming off the car.........

Preyluder · 03-25-2004, 09:40 AM

You'll be quite lucky if the valves are burnt but there is no damage in the combustion chamber or on the pistons.

dubzz24 · 03-25-2004, 09:53 AM

**** dude that sucks. I'm running a ZEX dry kit jetted to a 75 shot, and I'm just running one step colder copper plugs (BKR7E's) with no timing retard. Had the kit for 3 months, gone through 3 bottles, and I still pull 230 PSI all accross the board.

If you had/have ZFR5F-11's, then that's actually one step HOTTER than stock. Definately explains what happened...