racejunky02

iTrader: (41)

I am running a 383 with a fast 90/90, 36lb injectors and plan on spraying a 150 shot in the next week or so and I am trying to round up what I need. I have a granatelli 255lph fuel pump with no hot wire kit...will a hot wire kit be needed? Also will I be safe with using NGK tr6's and is a bottle heater necessary?

Z-RATED94

iTrader: (6)

I would consider the bottle heater a definite need to a safe system. How else would you keep the bottle pressure and A/F ratio consistent?

ShiznityZ28

iTrader: (11)

You don't have to order a hotwire kit. you can use a relay and create your own. Id run 1 it makes it less likely to drop FP.

Grant@NitroDaves

Do not spray 150 with TR6 plugs. I would run the BR7EF up to 200hp without extreme compression.

racejunky02

iTrader: (41)

My compression ratio is roughly..11:5:1...so you say run BR7EF's. Are they an NGK plug?

Z-RATED94

iTrader: (6)

Yes they are.

racejunky02

iTrader: (41)

thanks man..

ShiznityZ28

iTrader: (11)

didn't even see the plugs. with a 383 and 11.5 on a 150 id put a 9 in day 1 and get the tune right then start moving down. but i expect you will see no diff from 7-9 so the 9 will be a good choice.

jmill96Z

iTrader: (3)

Wow, how the times have changed. I remember not too long ago when TR6's were the ****.Everyone recommended them for 200 or less, and people would spray them up to 200 without issues. I myself, probably have more than 100 150 shot passes, and about 50 200 shot passes on TR6's.

I guess my question is; did something change in the design of the plugs or something? What is your personal experience in running this plug vs. the BR7? Reason I am asking is, that is a pretty bold statement considering you know nothing about his motor or car.

ShiznityZ28

iTrader: (11)

Just knowing a 383 should make 40 more hp than a 346 and he said its 11.5( a good bit more than your avg 346. and a 200 shot tells me he should start with a 9.

I don't recomend a 6 unless its a bone stock car with a small shot. the hp difference is nothing so the colder plug has its advantages.

jmill96Z

iTrader: (3)

Holy ****...a 9???

I don't have a problem running colder plugs, but sometimes they are a bitch to find for us "regular guys". Whereas I can go to about 4 different places in town and pick up TR6's.

Alot of these guys don't have race cars. They just want to screw around with a little spray. A 9 is a pretty cold plug to be daily driving. I think a 6 or 7 would be appropriate in this application.

ShiznityZ28

iTrader: (11)

If the tuner knows what he is doing a 9 will run just fine. a 383 with 11.5 with a 200 shot is not in a 6's range 100% sure.

ShiznityZ28

iTrader: (11)

You could throw stuff at it and it might work. but for the price of 3 sets of plugs and a few gal of good gas its worth every penny to not burn it up or even just hurt the rings enough the motor is a blowby turd until its freshened up.

our car drives on 11's the same way a stock car drives on 5's . You need timming and less fuel to clean the plug off. once you have it on. theres no difference at idle. and the few motor hp your down is worth the unlimited life of the motor.

Undecided

iTrader: (1)

To each his own, but I've sprayed countless bottles on TR6's, never had an issue. That was on pump & race gas, both bolt on & big cube motors. A couple of years ago I put some "special nitrous plug" in a kids car, had nothing but problems no matter the gap, on motor & on the gas. I put some old tr6's I had in the garage, cleared right up, not a bad plug in my book unless your dealing with a purpose built all out nitrous car.

racejunky02

iTrader: (41)

thanks for the input guys...keep it coming...I ordered the BR7EF should be here today...do you guys think I will be fine with them..

ShiznityZ28

iTrader: (11)

the 7's will be fine but for the first couple runs take a few extra degrees of timming out and put some 110 in or something and work you way up.

ShiznityZ28

iTrader: (11)

Look man anyone can put a 150 on stock plugs 87 octain and stock tune. and it might be good. WHY RISK IT? if you don't understand how the timming tolerance changes from a colder plug and more octain you need to sell the nitrous bottle. there is no way a 93 octain /tr6 tune and a race gas tr6 tune and a tr9 /race gas etc tune are the same.... But what do i know...

racejunky02

iTrader: (41)

ok so take extra timing out and then slow add it back in...and you think I should run some kind of cam2 or something...correct? sorry not trying to sound like a jackass but this is my first nitrous encounter lol

ShiznityZ28

iTrader: (11)

You8 have it right. and while adding timming keep an eye on the fuel ring. If the car gains MPH( et is a hard way to judge) than you are going in the right direction.

racejunky02

iTrader: (41)

Ok that sounds good...now if you were to throw a number out there providing I have good traction and an all around good pass, what do you think I can expect to pick up. My best et so far is an 11.08@125mph on a 1.57 60ft. I am running 10.5x26 M/T ET streets...would you spray it off the line or would you wait til second gear?