VRE 383 with LE3 Package Finally being Dynoed!!
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From: SoCal
Re: VRE 383 with LE3 Package Finally being Dynoed!!
Originally Posted by T/A KID
HotRodHawk on this forum made 505RWHP with LT1 heads (Right at 280 range), 12:5 compression, Single plain, with an auto and a BIG HR cam at around 7000 I believe. A well down LT1 head can do it, put it takes a nice size cam and A nice intake "cough" single plain to do it.
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Joined: Jul 2003
Posts: 1,668
From: Cliffside Park, NJ
Re: VRE 383 with LE3 Package Finally being Dynoed!!
Originally Posted by JustNO
~450rwhp
You have said its your daily drive car. Is it really?
You have said its your daily drive car. Is it really?
Whats an EWP?
Those are some high expectations... damn. That would be sweet to see 450rwhp!! Car pulls like a raped ape... it's crazy. I can leave a car like it's standing still in 3rd.
I beat a Spec V in 5th at 2500rpms. haha I went 1/2 - 2/3 throttle.
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From: MN/WI
Re: VRE 383 with LE3 Package Finally being Dynoed!!
Originally Posted by T/A KID
HotRodHawk on this forum made 505RWHP with LT1 heads (Right at 280 range), 12:5 compression, Single plain, with an auto and a BIG HR cam at around 7000 I believe. A well down LT1 head can do it, put it takes a nice size cam and A nice intake "cough" single plain to do it.
Originally Posted by T/A KID
Last time I talked to him Denny Mcclain made 485RWHP with his 385 with LT4 intake and heads, with a HR in a 6-speed. I think I actually have the graph is someone wants to host it.
Originally Posted by T/A KID
A few have hit that with heads that were not even worked over that well on Stock Bottom End N/a Cars.
Sar2k comes to mine in this application, 445RWHP with a stock LT1 shortblock, 248/254 HR cam right at .600 lift, ported LT1 heads and intake, by himself that peaked at 250CFM
. Theres something going on there besides head flow you think, lol. made max power at 6600 RPM
Sar2k comes to mine in this application, 445RWHP with a stock LT1 shortblock, 248/254 HR cam right at .600 lift, ported LT1 heads and intake, by himself that peaked at 250CFM
. Theres something going on there besides head flow you think, lol. made max power at 6600 RPM
Originally Posted by T/A KID
As far as LT1 heads being able to support a 383, I think it all depends on the flow characteristics of the head, and along with many other attributes.
B/c there are some pretty strong Lt1 383's out there.
B/c there are some pretty strong Lt1 383's out there.
To be completely honest, the combo is setup alot better than mine, but also you just don't see magical LT1's defeating mother nature.
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Joined: Sep 2003
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From: Edmonton, AB, Canada
Re: VRE 383 with LE3 Package Finally being Dynoed!!
will you be dyno tuning it as well? I think youll make useable power all the way to 7000 rpm with that cam. I think you'll hit the 450mark, or be close
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Re: VRE 383 with LE3 Package Finally being Dynoed!!
Unless you tune the **** out of it. I'm saying 420rwhp, period. Don't get all hyped up just to be let down, because you expect way too much.
FWIW 500rwhp Hyd Roller NA LT1's that are driveable will cost $15K more TB to Pan.
BTW you need valve curtain area as well as not having the pushrod pinch to get a 383 to peak high enough to make stupid power.
Bret
FWIW 500rwhp Hyd Roller NA LT1's that are driveable will cost $15K more TB to Pan.
BTW you need valve curtain area as well as not having the pushrod pinch to get a 383 to peak high enough to make stupid power.
Bret
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From: San Francisco
Re: VRE 383 with LE3 Package Finally being Dynoed!!
Originally Posted by SStrokerAce
Unless you tune the **** out of it. I'm saying 420rwhp, period. Don't get all hyped up just to be let down, because you expect way too much.
FWIW 500rwhp Hyd Roller NA LT1's that are driveable will cost $15K more TB to Pan.
BTW you need valve curtain area as well as not having the pushrod pinch to get a 383 to peak high enough to make stupid power.
Bret
FWIW 500rwhp Hyd Roller NA LT1's that are driveable will cost $15K more TB to Pan.
BTW you need valve curtain area as well as not having the pushrod pinch to get a 383 to peak high enough to make stupid power.
Bret
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Re: VRE 383 with LE3 Package Finally being Dynoed!!
Considering the lack of compression, hell yeah. You have the physical parts there the only power to be found is thru lots of tweaking and testing little things..... Denny McClain is a good example of that. He started off with stock castings below 400rwhp and ended up around 450rwhp, and the same thing with his 480rwhp setup now.
Bret
Bret
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From: Red Oak Texas
Re: VRE 383 with LE3 Package Finally being Dynoed!!
I would say 435 RWHP and 420 RWTQ with great tuning, proper rocker adjustment, good opti, etc, etc.
The car probably "feels" like it has more power since the TQ curve is so fat. It is just hard to do any better with LT1 castings on a 383 since we are gonna make peak HP so early (about 6000-6100 RPM). It should keep you pinned back in the seat until 6600 RPM (or until you let off actually) and probbaly run its best ET shifting at 6400-6500 RPM but the dyno will show the HP #'s peaking at 6000-6100 RPM and this will probably limit the overall #'s from ever reaching 450 RWHP but ya never know. Enough pulls and tweaks on the dyno might do it. On a side not, the car should be at 400 RWHP right around 5000 RPM and this is another thing making the car "feel like" it has more HP than it might actually show on a dyno.
As far as track times, if it is a 6 speed car and weighs 3700 lbs with driver and can only get a 1.90 60 ft, 11.80's at 117 MPH is probably about right. Not bad if that is the way he wants his car set up and likes the 6 speed with that .5 6th gear.
You can obviously run faster at the track by removing 500 lbs (1/2 asecond right there) and running an A4 trans (or A3 if you are not worried about the O/D and gas mileage) with a 3600-4000 stall for a 1.50 60 ft and run some 11.10-10.80's at 120-123 MPH are more than doable.
Depends on what he is willing to do as far as weight removal and how important the 1/4 ET is. Somepeople like the OD trans, A/C and a very "tourquey" streetable set that you do not have to beat on to feel fast.
then again, if you are building a race car and focusing on 1/4 times with NO A/C or Overdrive trans, you will be better off with a 66 Chevy II, 280 Z, etc, and build a chassis for it.
Lloyd Elliott
972-617-5671
Eportworks.com
The car probably "feels" like it has more power since the TQ curve is so fat. It is just hard to do any better with LT1 castings on a 383 since we are gonna make peak HP so early (about 6000-6100 RPM). It should keep you pinned back in the seat until 6600 RPM (or until you let off actually) and probbaly run its best ET shifting at 6400-6500 RPM but the dyno will show the HP #'s peaking at 6000-6100 RPM and this will probably limit the overall #'s from ever reaching 450 RWHP but ya never know. Enough pulls and tweaks on the dyno might do it. On a side not, the car should be at 400 RWHP right around 5000 RPM and this is another thing making the car "feel like" it has more HP than it might actually show on a dyno.
As far as track times, if it is a 6 speed car and weighs 3700 lbs with driver and can only get a 1.90 60 ft, 11.80's at 117 MPH is probably about right. Not bad if that is the way he wants his car set up and likes the 6 speed with that .5 6th gear.
You can obviously run faster at the track by removing 500 lbs (1/2 asecond right there) and running an A4 trans (or A3 if you are not worried about the O/D and gas mileage) with a 3600-4000 stall for a 1.50 60 ft and run some 11.10-10.80's at 120-123 MPH are more than doable.
Depends on what he is willing to do as far as weight removal and how important the 1/4 ET is. Somepeople like the OD trans, A/C and a very "tourquey" streetable set that you do not have to beat on to feel fast.
then again, if you are building a race car and focusing on 1/4 times with NO A/C or Overdrive trans, you will be better off with a 66 Chevy II, 280 Z, etc, and build a chassis for it.
Lloyd Elliott
972-617-5671
Eportworks.com
Last edited by NightTrain66; Feb 2, 2006 at 08:40 AM.
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Joined: Dec 2003
Posts: 2,724
From: Oklahoma where trees are made of wood.
Re: VRE 383 with LE3 Package Finally being Dynoed!!
I'll agree fully with that Lloyd. I built my to be just like you stated. My dad calls it a slow race car...lol, but then again he never broke into the 11s with his Sprint Falcon back in the 60s...lol.
If the car only makes 399 RWHP but still puts a big grin on your face ... who cares.
If the car only makes 399 RWHP but still puts a big grin on your face ... who cares.
