How long will it take?
Thread Starter
Race Director
Joined: Dec 1999
Posts: 11,094
Likes: 990
From: Sierra Foothills CA
Re: How long will it take? (tntcorvette)
Your question is so open ended that most of us are probably looking to just to see what it's about. I'm sorry I don't have an answer for you. :confused:
Melting Slicks
Joined: Apr 2001
Posts: 3,399
Likes: 278
From: Olmsted Falls, Ohio
Re: How long will it take? (tntcorvette)
Geeeez yourself ----- call a shop that does that work and ask them the cost and # of hours. Figure out your experience and factor that on to their hours. It would seem to me that if you had done some head porting in the past you would have enough experience to be able to look at what you want to do and estimate it yourself.
Race Director
Joined: Mar 1999
Posts: 12,586
Likes: 237
From: Bartlett Illinois
Re: How long will it take? (tntcorvette)
not sure how long.. but what do you plan to accomplish by this? just curious...
since you are selling your PROM Stuff.. I assume you are going.. Speed pro or DFI?
since you are selling your PROM Stuff.. I assume you are going.. Speed pro or DFI?
Le Mans Master
Joined: Feb 1999
Posts: 6,172
Likes: 11
From: somers, ny
Re: How long will it take? (tntcorvette)
TNT, be careful cutting up your SR!!! I cut the little dividers out of the plenum since they didn't match up very well with the runners. The car seemed to like that along with some porting & polishing. Then i figured if that worked, siamesing a little more of the runners would really help...WRONG!!!! It killed it. I'd estimate about 2-3 tenths and 2-3 mph. I had the dividers welded back into the runners and things were pretty much back to normal. Looking at the siamesed runners, you have concluded that they would HAVE to flow better especially in the higher rpms, BUT they didn't!!! When they say "Tuned Port", they mean it! My conclusion was that siamesing is NOT the same as shortening and the turbulance bewteen adjacent runners killed it. Maybe the timing and fuel curves just needed to be retuned and maybe you will have better luck than i did. I dunno.
I have found that my engine responded to porting the base and runners though. I have run a best of 117.6 mph and might do better is cold weather. So you might want to reconsider cutting it up or just switch to a minram, more cam, better heads, more gear, more stall, etc, etc, etc.....LOL!!! whatever you decide good luck!!!
I have found that my engine responded to porting the base and runners though. I have run a best of 117.6 mph and might do better is cold weather. So you might want to reconsider cutting it up or just switch to a minram, more cam, better heads, more gear, more stall, etc, etc, etc.....LOL!!! whatever you decide good luck!!!
Le Mans Master
Joined: Feb 1999
Posts: 6,172
Likes: 11
From: somers, ny
Re: How long will it take? (tntcorvette)
tnt, i don't know if tuning would have helped the siamesed runners or not. problem is i have an 85 ecm and have on practical way to get data from it. therefore tuning would have been extremely difficult. Plus if i was only off a little, i would have pursued it further, but i was down BIG and didn't think i could tune my way out of it.
You are correct on the LPE 383s. They advertise 440hp for their SR combos and usually get more. I have a dyno pull from one that got 452hp. Mine is ony a 350 though, so maybe just shy of 400hp.
You are correct on the LPE 383s. They advertise 440hp for their SR combos and usually get more. I have a dyno pull from one that got 452hp. Mine is ony a 350 though, so maybe just shy of 400hp.
Le Mans Master
Joined: Feb 1999
Posts: 6,172
Likes: 11
From: somers, ny
Re: How long will it take? (tntcorvette)
not sure. if you use some drag math 115-116 mph with a 3200-3300lb car is right around 400HP. I usually run 115 & change in the summer and speed up a little in cooler weather. Now if i could only get it to short time :(
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Le Mans Master
Joined: Feb 1999
Posts: 6,172
Likes: 11
From: somers, ny
Re: How long will it take? (tntcorvette)
yes...getr to the track
the g-tech might be close, but you can't compare the two
the sway bar only helps traps in that it weighs about 15-20lbs
my car used to trap around 110-113 depending on weather. little by little i have improved my ETs and traps. So don't give up
the g-tech might be close, but you can't compare the two
the sway bar only helps traps in that it weighs about 15-20lbs
my car used to trap around 110-113 depending on weather. little by little i have improved my ETs and traps. So don't give up
Drifting
Joined: Aug 2000
Posts: 1,316
Likes: 0
From: Houston, TX
Re: How long will it take? (ralph)
TNT, are you running the stock type air filter thru the beer can sized maf sensor? You can't pass enough air thru that system into your engine to make the horsepower you are talking about. The lingenfelter cars all run dfi systems that allow for much improved tuning than a stock ecm. I have a modified LTI type air intake system on my 86 to feed my 415. What heads are you running on your engine? Do you have headers? Stock cat or hipo?
[Modified by HWoods, 9:54 PM 10/4/2001]
[Modified by HWoods, 9:55 PM 10/4/2001]
[Modified by HWoods, 9:54 PM 10/4/2001]
[Modified by HWoods, 9:55 PM 10/4/2001]
Safety Car
Joined: Feb 1999
Posts: 4,724
Likes: 16
From: Little Elm TX
Re: How long will it take? (tntcorvette)
TNT,
You gotta throw out that G-tech time and get to the track, those things are never worth much in my book.... mph is always high. You guys have some great air right now... your best opportunity to run good is this time of year.... head over to Route 66 with Dennis one day.
Ralph, I know we've discussed this, but I believe you have 400 hp and probably a hair more... look at it this way, a 2001 Z06 with roughly the same raceweight as you, and a more efficient manual transmission run 112 mph traps when well driven out here.... they're rated at 385 HP.... with your 117 and change mph, and your auto, you gotta be making significantly more. They dyno at roughly 335 rwhp... and run weaker traps... anyway you look at it, you're over 400 hp.
Note: Stock Z06 weighs 3100 plus 180lb driver would be around 3280 lbs... you're probably a hair heavier even.
You have 5 more mph, probably means your somewhere around 425 HP.... thats very strong, especially for a stock 350 cube motor.... the more I think about it, the more you pi$$ me off !!!! :cry
later
Beach
You gotta throw out that G-tech time and get to the track, those things are never worth much in my book.... mph is always high. You guys have some great air right now... your best opportunity to run good is this time of year.... head over to Route 66 with Dennis one day.
Ralph, I know we've discussed this, but I believe you have 400 hp and probably a hair more... look at it this way, a 2001 Z06 with roughly the same raceweight as you, and a more efficient manual transmission run 112 mph traps when well driven out here.... they're rated at 385 HP.... with your 117 and change mph, and your auto, you gotta be making significantly more. They dyno at roughly 335 rwhp... and run weaker traps... anyway you look at it, you're over 400 hp.
Note: Stock Z06 weighs 3100 plus 180lb driver would be around 3280 lbs... you're probably a hair heavier even.
You have 5 more mph, probably means your somewhere around 425 HP.... thats very strong, especially for a stock 350 cube motor.... the more I think about it, the more you pi$$ me off !!!! :cry
later
Beach
Le Mans Master
Joined: Feb 1999
Posts: 6,172
Likes: 11
From: somers, ny
Re: How long will it take? (Beach Bum)
Beach that 117.6 was an anomoly, as i usually run 115-116. I guess i'm around 400+ on HP, but that aint SAE corrected. with SAE conditions it would probably be a little lower with a 29.6 Bar.
I can just about garantee you 2 tenths quicker ETS and 1-2 MPH if you were racing here in Etown. When was the last time you raced in 45 deg weather with Bars over 30??? It is not unusual here in Oct-Nov. So pack up your poopie and move out here....aren't 2 full tenths worth it?????
I can just about garantee you 2 tenths quicker ETS and 1-2 MPH if you were racing here in Etown. When was the last time you raced in 45 deg weather with Bars over 30??? It is not unusual here in Oct-Nov. So pack up your poopie and move out here....aren't 2 full tenths worth it?????
Drifting
Joined: Feb 1999
Posts: 1,769
Likes: 33
From: Bradenton Florida
Re: How long will it take? (ralph)
Karl
you got to stick it out,
Tuning and optimizing you setup will take some time. Ralph has perfected his setup after a few years. one glitch and it falls apart. His fuel pump was weak. he fell to 12.20's
I get alot of emails now comparing 350 SR,219,AFR 190 cars all wanting 11's.....
My first time out with my 383 was depressing as well. a best of 12.4 consistent 12.5's. Beach was the same with his new setup.
Go to the track. There is still a few more event coming up. US 41 has tune days on fri and sun morning. Not shure how many left though. bring you diacom along with your programmer .
Do you ever get diacom??
The supperram is a little more picky in the timing department. The miniram can take a whole lot. but the SR is a tad different since its more of a tq setup.
Dennis
you got to stick it out,
Tuning and optimizing you setup will take some time. Ralph has perfected his setup after a few years. one glitch and it falls apart. His fuel pump was weak. he fell to 12.20's
I get alot of emails now comparing 350 SR,219,AFR 190 cars all wanting 11's.....
My first time out with my 383 was depressing as well. a best of 12.4 consistent 12.5's. Beach was the same with his new setup.
Go to the track. There is still a few more event coming up. US 41 has tune days on fri and sun morning. Not shure how many left though. bring you diacom along with your programmer .
Do you ever get diacom??
The supperram is a little more picky in the timing department. The miniram can take a whole lot. but the SR is a tad different since its more of a tq setup.
Dennis
Safety Car
Joined: Feb 1999
Posts: 4,724
Likes: 16
From: Little Elm TX
Re: How long will it take? (ralph)
Ralph,
E-town I'm sure is a nice track, but I doubt if it would give me that much over what I've already ran, I too race at a sea level track (300 ft) and of course a DA is a DA regardless of where you're at, and it sounds like yours is about the same as ours. I would bet a nickel though I'd pick-up some consistency at E-town.... its gotta be stickier than Carlsbad to some type of extent. However, the super cool weather I've never raced in.... not because we don't have temps of 45 degrees on occasion, but because it normally doesn't drop that far down during the day... with our newly opened 1/8th mile track, they're going to have some nighttime racing
Even though its not the 1/4, the 1/8th will tell me all I need to know on temp effects.
TNT,
I agree with Dennis, my 1st time out with my 383 I ran 12.20 :( Small stupid things bite you in the butt, and you really don't know you have the problem until you hit the track. My problem was a bad plug wire and a undersized header gasket...very next trip to the dragstrip was in the 11's.
good luck
Beach
E-town I'm sure is a nice track, but I doubt if it would give me that much over what I've already ran, I too race at a sea level track (300 ft) and of course a DA is a DA regardless of where you're at, and it sounds like yours is about the same as ours. I would bet a nickel though I'd pick-up some consistency at E-town.... its gotta be stickier than Carlsbad to some type of extent. However, the super cool weather I've never raced in.... not because we don't have temps of 45 degrees on occasion, but because it normally doesn't drop that far down during the day... with our newly opened 1/8th mile track, they're going to have some nighttime racing
Even though its not the 1/4, the 1/8th will tell me all I need to know on temp effects. TNT,
I agree with Dennis, my 1st time out with my 383 I ran 12.20 :( Small stupid things bite you in the butt, and you really don't know you have the problem until you hit the track. My problem was a bad plug wire and a undersized header gasket...very next trip to the dragstrip was in the 11's.
good luck
Beach
