why would modest psi and 35 shot be so bad on stock motor? - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 12-03-2003, 11:10 AM   #1
Registered Member
Regular
 
tire's Avatar
 
Join Date: Jul 2003
Posts: 941
Send a message via AIM to tire
why would modest psi and 35 shot be so bad on stock motor?

i'm not getting this...

(assume perfect tunes)

pretend a car runs 7psi from 1.5k-6k rpms.

now... why would a small 35 wet shot for cooling/keep pinging away purposes be so bad?

yeah it'll raise cyl pressure but i wouldn't think this would be so bad. i've been warned without too much explanation that it's not a good idea. someone suggested 15-20 shot and that would be alright, but i need to understand this in full.

also, why would this be worse than say 11psi from 1.5k-6k rpms? i'm being told that even higher boost is better than mixing the two power adders.

anyone care to give it a shot
__________________
-austin
tire is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-03-2003, 11:50 AM   #2
Registered Member
Regular
 
BlueDonkey's Avatar
 
Join Date: Jul 2003
Region: Virginia
Posts: 301
Quote:
anyone care to give it a shot
Higher concentration of oxygen in nitrous leads to a more explosive combustion?
That's my shot, did I miss?
__________________
---
BlueDonkey is offline   Reply With Quote
Old 12-03-2003, 12:13 PM   #3
Legacy Member
Legacy
 
Monkey's Avatar
 
Join Date: Jun 2003
Posts: 1,286
you can perfectly tune an 11psi kit to always accept 11psi of boost.... with the nitrous, because its not always on, you need two tunes. one for the 5psi and one for the 5psi plus nos. its just a little more complicated. plus, with nitrous, you want retarded timing where as with a blower, you can theoretically do advanced timing as long as you have enough octane. adding nitrous to an advanced timed engine will cause detonation, not prevent it. a 15-20 shot wont do enough in the cylinders to cause any noticable problems or even good.


also, nitrous adds 35rwhp (i know you have NX installed and they rate shots at the wheels), but it also adds like 50ft/lbs of tq. that instant amount of torque on an already boosted car is just s sudden jerk and can lead to damage. i know 50ft/lbs isnt a lot, but think of a stock bottom end already boosted, then throw the sudden kick of 50ft/lbs more in there. could snap the crank or blow your clutch or other things. the blower builds boost, so its a progressive gain which is easier on the engine
__________________
**I have sigs turned off, so if you're asking for advice based on your mods, I can't see them**
Monkey is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-03-2003, 12:22 PM   #4
Registered Member
Regular
 
tire's Avatar
 
Join Date: Jul 2003
Posts: 941
Send a message via AIM to tire
i see. why did you suggest a 35 shot months ago... remember, i thought about selling it if the roots thing works out.

<--still confused.
tire is offline   Reply With Quote
Old 12-03-2003, 03:58 PM   #5
Legacy Member
Legacy
 
Monkey's Avatar
 
Join Date: Jun 2003
Posts: 1,286
because you were getting a forged rotating assembly
__________________
**I have sigs turned off, so if you're asking for advice based on your mods, I can't see them**
Monkey is offline   Reply With Quote
Old 12-04-2003, 06:56 AM   #6
Registered Member
Regular
 
tire's Avatar
 
Join Date: Jul 2003
Posts: 941
Send a message via AIM to tire
even so, wouldn't it be more logical (if what i think i am being told is correct) to just up the boost and leave nitrous out of it, since the nitrous will hit harder than even a few more psi would, which would outdo the effects of nitrous as cooling/power adder factor?

ie. 14psi + 35 shot OR 18psi...

except...

14psi + 35 shot < 18psi...?
tire is offline   Reply With Quote
Old 12-04-2003, 11:08 AM   #7
RGR
Registered Member
Regular
 
Join Date: May 2003
Region: Indiana
Posts: 1,065
Send a message via AIM to RGR
I think it depends more on the fuel with the NOS
more than anything. Provided the fuel is always there
with the juice I'd say 7 PSI + 35 shot is possibly gonna
be more of an intercooler effect than anything.
99^ being stronger than a pre-99 all around...
What is your year V6PStang???

I'd get the SC tune just right b4 I tried any juice for sure or
__________________
Originally Posted by Flex:
You are the true cam master dude...
RGR is offline   Reply With Quote
Old 12-04-2003, 11:12 AM   #8
Registered Member
Regular
 
tire's Avatar
 
Join Date: Jul 2003
Posts: 941
Send a message via AIM to tire
'00.

if there is a decent risk in doing this i will not do it until i have a motor waiting to replace the stock one.
tire is offline   Reply With Quote
Old 12-04-2003, 11:31 AM   #9
RGR
Registered Member
Regular
 
Join Date: May 2003
Region: Indiana
Posts: 1,065
Send a message via AIM to RGR
IMO it'd probably be great with a really good (safe) tune
but Monkey is right to play it safe, Dan Haga did a single port
SC and 75 shot, IMO he already had problems and the NOS
just hastened the failure of his engine. So he rebuilt and
made a bulletproof bottom end and now all is good!

What all mods are U looking at with the SC and NOS?
maybe we better look at the total picture, I was assuming
NO MODS but SC and NOS...
I know U want me to grind a cam, that might be too much all together!
__________________
Originally Posted by Flex:
You are the true cam master dude...
RGR is offline   Reply With Quote
Old 12-04-2003, 12:56 PM   #10
Registered Member
Regular
 
tire's Avatar
 
Join Date: Jul 2003
Posts: 941
Send a message via AIM to tire
we'll see first if the blower works and we'll be able to sell the kits. if that happens, i'll get the funding to go all out and build myself a 4.2l off of a sc block. for now though just a few here-and-there's, nothing major. i consider a cam essential though and after initial testing and dynoing i will put one in. my engine is stock and we want to test it as such. track times would be just with the blower of course but for fun on the side i thought a small shot would be alright... hopefully that clarifies things.
tire is offline   Reply With Quote
Old 12-05-2003, 07:47 AM   #11
RGR
Registered Member
Regular
 
Join Date: May 2003
Region: Indiana
Posts: 1,065
Send a message via AIM to RGR
Just to be really safe, I'd save the juice for the purpose-built engine.
It would probably be OK without the cam on a boosted stocker, but
too many HP mods + boost + juice is begging the question
__________________
Originally Posted by Flex:
You are the true cam master dude...
RGR is offline   Reply With Quote
Old 12-10-2003, 02:06 PM   #12
Registered User
Newbie
 
Join Date: Aug 2003
Posts: 17
if you had a front mount intercooler you could always get a nx intercooler kit witch sprays nitrous or carbon dioxide (i think) into the fins of the intercooler to cool down the air. doesnt go into you motor but it cools the air. : dont know if it works or not
badazzstang is offline   Reply With Quote
Old 12-11-2003, 01:16 PM   #13
RGR
Registered Member
Regular
 
Join Date: May 2003
Region: Indiana
Posts: 1,065
Send a message via AIM to RGR
even water spray on the intercooler works well. But not at the track :
__________________
Originally Posted by Flex:
You are the true cam master dude...
RGR is offline   Reply With Quote
Old 12-21-2003, 07:51 PM   #14
Legacy Member
Legacy
 
Falcon's Avatar
 
Join Date: Oct 2003
Region: Michigan
Posts: 1,438
Send a message via AIM to Falcon Send a message via MSN to Falcon Send a message via Yahoo to Falcon
a supercharged stock motor with nitrious? lol correct me if im wrong but wouldnt there be some sort of explosion?
__________________
-Derek
1999 Trans Am WS6
Full Stainless Magnaflow Exhaust, Stainless Longtubes/Off Road Y-Pipe, QTP E-Cutout, HP Tuners, Super Sucker Ram Air Kit, BMR Tunnel Brace/Driveshaft Safety Loop, Hotchkis Panhard Bar, Hypertech 160 Thermostat, CF Whisper Air Lid, Corvette FRCs, K&N, !AIR, !EGR
Falcon is offline   Reply With Quote
Old 12-21-2003, 11:41 PM   #15
Dom
Registered Member
Regular
 
Dom's Avatar
 
Join Date: Nov 2003
Region: Tennessee
Posts: 2,391
Send a message via AIM to Dom
Quote:
nx intercooler kit witch sprays nitrous or carbon dioxide
NX sprays Nitrous over the intercoolr to cool the incomming air. And the new CryO2 sprays Cryogen to cool the air.
__________________
- Matthew | matthew98@gmail.com
Dom is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
anyone have a stock 00 gt motor for sale stockgt 1996-2004 Mustang GT 0 04-08-2008 11:02 PM
Psi rating on stock motor fasternu_674 Pre-2005 V6 Mustang 7 03-05-2008 11:58 AM
Trying to Save Stock Motor bluemustang 1979-1995 Mustang GT 11 04-05-2007 07:13 PM
Biggest shot of nitrous on stock V6 MatrixJK4 Pre-2005 V6 Mustang 8 11-16-2004 01:46 PM
385RWHP / 428RWTQ 00 V6 5spd stock motor my old TT kit justin00stang Pictures and Videos 16 11-08-2004 12:50 AM

» Members Mustangs

Ellie

Zhim

Mustang

JanDubai
Add your Mustang
» Like Us On Facebook



03:47 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.