dyno #'s-150 shot
10-04-2005, 12:39 PM
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dyno #'s-150 shot Freind of mine tuned my car for me last night, its a SI 350 w/LQ9 Patriot heads, TSP 231/237, LS6 intake, SLP long tubes, 3' Y-pipe into 4' exhaust and Dynomax race muffler.
On a Nitrous Express 150 shot, 523hp/534tq. For comparison, we ran it with without spray on the same tune, 414hp/381tq. The car still has the factory fuel pump and injectors, I have now ordered a Walbro.
EDIT: I am pleased with the #'s, they're not quite as high as I would have liked on the sauce but the motor was where I thought it should be w/ the parts and tune(@425 on N/A tune), any comments or suggestions would be appreciated
On a Nitrous Express 150 shot, 523hp/534tq. For comparison, we ran it with without spray on the same tune, 414hp/381tq. The car still has the factory fuel pump and injectors, I have now ordered a Walbro.
EDIT: I am pleased with the #'s, they're not quite as high as I would have liked on the sauce but the motor was where I thought it should be w/ the parts and tune(@425 on N/A tune), any comments or suggestions would be appreciated
Last edited by RobertR.; 10-04-2005 at 12:59 PM.
10-04-2005, 02:39 PM
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im gonna be going with a dual nozzle system here soon, trying to get a true 150 shot, I have heard from a couple of people that there not getting a true 150 shot from certain systems (as I am) so I am building a Bastard system with a TNT power ring and another CFN Nozzle. My dyno's on my cardomain link.
10-04-2005, 02:44 PM
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Originally Posted by Nitro Dave's Nitrous Outlet
What was the air fuel and bottle pressure? Also what jets were in the system?
Dave
Dave
Chris (the tuner) said the dyno was a little conservative, judging from the n/a #'s though, I figured it was pretty close and I just wasn't getting as much as I should from my spray.
Last edited by RobertR.; 10-04-2005 at 02:49 PM.
10-04-2005, 10:00 PM
#7
Every engine/set-up is different. VE plays a role. If you want a true 150rwhp just have your tuner tune it that way, jet up, that's all. My set-up is the same, jets on paper were in reality off a little bit in the HP area, dosen't mean something is wrong with a kit though.
Robert
Robert
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10-04-2005, 11:48 PM
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Originally Posted by RobertR.
Bottom 12's AF, bottle was right on the red each pull, jets were 62/28.
Chris (the tuner) said the dyno was a little conservative, judging from the n/a #'s though, I figured it was pretty close and I just wasn't getting as much as I should from my spray.
Chris (the tuner) said the dyno was a little conservative, judging from the n/a #'s though, I figured it was pretty close and I just wasn't getting as much as I should from my spray.
28F, my NX sheet is 62N 33F for 150 shot, was he running rich?
10-05-2005, 12:23 AM
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it would be lean if he had a 28 in there. could be wrong jets. i had a guy come in the shop that had a kit installed else where and he had fouled 2 sets of plugs. i looked at it and when i pulled the jets out they had put jets in for a carb'd system (5.5 psi vs. 50ish)
10-05-2005, 01:53 AM
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Originally Posted by jmac_98ls1
it would be lean if he had a 28 in there. could be wrong jets. i had a guy come in the shop that had a kit installed else where and he had fouled 2 sets of plugs. i looked at it and when i pulled the jets out they had put jets in for a carb'd system (5.5 psi vs. 50ish)
I run 62N and 35F just to be safe
10-05-2005, 07:37 AM
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Originally Posted by RobertR.
Freind of mine tuned my car for me last night, its a SI 350 w/LQ9 Patriot heads, TSP 231/237, LS6 intake, SLP long tubes, 3' Y-pipe into 4' exhaust and Dynomax race muffler.
On a Nitrous Express 150 shot, 523hp/534tq. For comparison, we ran it with without spray on the same tune, 414hp/381tq. The car still has the factory fuel pump and injectors, I have now ordered a Walbro.
EDIT: I am pleased with the #'s, they're not quite as high as I would have liked on the sauce but the motor was where I thought it should be w/ the parts and tune(@425 on N/A tune), any comments or suggestions would be appreciated
On a Nitrous Express 150 shot, 523hp/534tq. For comparison, we ran it with without spray on the same tune, 414hp/381tq. The car still has the factory fuel pump and injectors, I have now ordered a Walbro.
EDIT: I am pleased with the #'s, they're not quite as high as I would have liked on the sauce but the motor was where I thought it should be w/ the parts and tune(@425 on N/A tune), any comments or suggestions would be appreciated
How's Arkansas?
Last edited by riggs; 10-26-2005 at 05:49 PM.
10-05-2005, 08:58 AM
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We started out with the standard 62N 33F, then went to a 31F and finally a 28F to lean it out some. I wasn't expecting a full 150 to the wheels, but I was thinking it should do a little more than 109, I've ordered a Walbro fuel pump to cure my fuel pressure woes and I'm thinking about some SVO injectors so I can go ahead and give it enough nitrous to make the power I want.
10-05-2005, 10:38 AM
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Originally Posted by RobertR.
We started out with the standard 62N 33F, then went to a 31F and finally a 28F to lean it out some. I wasn't expecting a full 150 to the wheels, but I was thinking it should do a little more than 109, I've ordered a Walbro fuel pump to cure my fuel pressure woes and I'm thinking about some SVO injectors so I can go ahead and give it enough nitrous to make the power I want.
10-05-2005, 11:22 AM
#16
Originally Posted by cantdrv65
There is a problem in the system...most likely the nitrous system since you state the tuning appears correct...Id definitely investigate the problem before just upping the jets. You should make AT LEAST 150rwhp over your NA numbers. It seems you have some a nitrous delivery problem.... Realistically, the 100 shot jets should yield the numbers you are seeing.
Robert
10-05-2005, 11:38 AM
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Thanks for the info, I'm going to replace the fuel pump and probly go dyno again soon. On the graph the power curve was wavey which was for sure because of the factory pump. I thought, however, that the peak should still have been higher.
I trust my friends tuning, although I'm sure there is a little more that a "guru" could get out of the car, Chris can get it as good most. I'm sure the kit is fine also, what I'm really suspicious of is the fuel and also, what about the electrical system? could there be a problem with power to the fuel pump?
I trust my friends tuning, although I'm sure there is a little more that a "guru" could get out of the car, Chris can get it as good most. I'm sure the kit is fine also, what I'm really suspicious of is the fuel and also, what about the electrical system? could there be a problem with power to the fuel pump?
10-05-2005, 11:55 AM
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Originally Posted by Robert56
Oh sorry, didn't mean to bash your friend. I was thinking pro tuner at the dyno. I self tune and we we have to do things our way somtimes. If you you have logging capability you can figure this out before returning to dyno.
Robert
Robert
I'll post up again after the pump install. 