what do you think abot nitrous on a 13:1 351w

antyates · 09-02-2006, 06:40 PM

got 351w .40 over stock rebuild with ported 289 heads runs on 110 fuel 13:1 c/r. had nitrous on my old engine so when i put this engine in i got the nitrous plate, wondering if i could use nitrous (50-100 shot) without messing anything up.

Dark_5.0 · 09-02-2006, 07:24 PM

Nitrous loves compression. The only question is wether or not your block is built to handle it.

antyates · 09-02-2006, 10:56 PM

cast piston, sucks! but do you think they will handle 50- 75 shot

82 GT · 09-03-2006, 12:13 AM

Yeah, but I wouldn't give it ANY more than that.

82 GT · 09-03-2006, 12:18 AM

Wait.....you mean you built a 13:1 engine and didn't take the time or spend the money on a set of forged pistons.....or at the VERY least....hyper pistons? That's insane dude!
That 13:1 must come from very tight combustion chambers. I don't think they make a domed, cast, piston....do they?

Dark_5.0 · 09-03-2006, 02:10 AM

I am sure he meant hypereutectic pistons, no way he found a domed cast piston. Yes you should be able to spray a 50-100 shot if you have a proper tune.

BTW: My Talon doesnt have forged pistons and it sees 23 psi of boost all the time.

Its all in the tune.

antyates · 09-03-2006, 02:51 AM

flat top the 13:1 comes from 54cc 289 heads, i wanted to see how much hp i could get out of all motor, stock, parts (i was on a tight budget) i put down 421 hp, I only was asking about the spray because it was all ready installed and i just put it all on my new engine because i didnt want to cut the wires or remove the dual purge

Dark_5.0 · 09-03-2006, 10:02 AM

Quote:

Originally Posted by antyates

flat top the 13:1 comes from 54cc 289 heads, i wanted to see how much hp i could get out of all motor, stock, parts (i was on a tight budget) i put down 421 hp, I only was asking about the spray because it was all ready installed and i just put it all on my new engine because i didnt want to cut the wires or remove the dual purge

Lol....... I have 53cc heads and fat tops and have right about 10 to 1 compression.

I seriously doubt you have 13 to 1 compression with flat top pistons.

Dark_5.0 · 09-03-2006, 10:32 AM

If you have a zero decked your block and have perfectly flat pistons that dont lose andy cc's from valve notching you would have 12.5 to 1 compression.

If you have stock pistons and havent zero decked your block your compression would be significantly lower.

antyates · 09-03-2006, 10:53 AM

My engine is a 1969 351W. It has a 4-inch bore, .040 over. Pistons are flattop-decking 0. Heads are 1965 289’s. They have 54cc combustion chambers. They have been planed .020. They have 1.9 Intake valves and 1.5 inch exhaust valves. They have also had extensive exhaust porting. The intake ports have been port matched. They have 1.6 roller rockers. Intake Manifold is a single planed Ford Motorsport.

antyates · 09-03-2006, 11:00 AM

But the question was about the Nitrous, And I think i got it answerd, so thanks

09-02-2006, 06:40 PM	#1
antyates Registered Member Join Date: Jun 2006 Posts: 20	what do you think abot nitrous on a 13:1 351w got 351w .40 over stock rebuild with ported 289 heads runs on 110 fuel 13:1 c/r. had nitrous on my old engine so when i put this engine in i got the nitrous plate, wondering if i could use nitrous (50-100 shot) without messing anything up.

09-02-2006, 07:24 PM	#2
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: what do you think abot nitrous on a 13:1 351w Nitrous loves compression. The only question is wether or not your block is built to handle it. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

09-02-2006, 10:56 PM	#3
antyates Registered Member Join Date: Jun 2006 Posts: 20	Re: what do you think abot nitrous on a 13:1 351w cast piston, sucks! but do you think they will handle 50- 75 shot

09-03-2006, 12:13 AM	#4
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: what do you think abot nitrous on a 13:1 351w Yeah, but I wouldn't give it ANY more than that. __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

09-03-2006, 12:18 AM	#5
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: what do you think abot nitrous on a 13:1 351w Wait.....you mean you built a 13:1 engine and didn't take the time or spend the money on a set of forged pistons.....or at the VERY least....hyper pistons? That's insane dude! That 13:1 must come from very tight combustion chambers. I don't think they make a domed, cast, piston....do they? __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

09-03-2006, 02:10 AM	#6
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: what do you think abot nitrous on a 13:1 351w I am sure he meant hypereutectic pistons, no way he found a domed cast piston. Yes you should be able to spray a 50-100 shot if you have a proper tune. BTW: My Talon doesnt have forged pistons and it sees 23 psi of boost all the time. Its all in the tune. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

09-03-2006, 02:51 AM	#7
antyates Registered Member Join Date: Jun 2006 Posts: 20	Re: what do you think abot nitrous on a 13:1 351w flat top the 13:1 comes from 54cc 289 heads, i wanted to see how much hp i could get out of all motor, stock, parts (i was on a tight budget) i put down 421 hp, I only was asking about the spray because it was all ready installed and i just put it all on my new engine because i didnt want to cut the wires or remove the dual purge

09-03-2006, 10:32 AM	#9
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: what do you think abot nitrous on a 13:1 351w If you have a zero decked your block and have perfectly flat pistons that dont lose andy cc's from valve notching you would have 12.5 to 1 compression. If you have stock pistons and havent zero decked your block your compression would be significantly lower. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

09-03-2006, 10:53 AM	#10
antyates Registered Member Join Date: Jun 2006 Posts: 20	Re: what do you think abot nitrous on a 13:1 351w My engine is a 1969 351W. It has a 4-inch bore, .040 over. Pistons are flattop-decking 0. Heads are 1965 289’s. They have 54cc combustion chambers. They have been planed .020. They have 1.9 Intake valves and 1.5 inch exhaust valves. They have also had extensive exhaust porting. The intake ports have been port matched. They have 1.6 roller rockers. Intake Manifold is a single planed Ford Motorsport.

09-03-2006, 11:00 AM	#11
antyates Registered Member Join Date: Jun 2006 Posts: 20	Re: what do you think abot nitrous on a 13:1 351w But the question was about the Nitrous, And I think i got it answerd, so thanks

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