Who has 383 TPI motors????
10-17-2005, 07:04 PM
#1
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Join Date: Apr 1999
Posts: 205
Who has 383 TPI motors????
If you do, Can u please tell me your dyno results/trap speeds etc.....
Along with mods, Please and thanks! I am about to start to build one.....
My combo so far is Trickflow Heads TFS-3040007(Summit Part #), LPE 219 cam, Superram, 1.6 rockers etc.....I am looking for 380 rwhp, Is this possible?
Hope to hear everyone's 383 mod list.
Thanks alot!
Along with mods, Please and thanks! I am about to start to build one.....
My combo so far is Trickflow Heads TFS-3040007(Summit Part #), LPE 219 cam, Superram, 1.6 rockers etc.....I am looking for 380 rwhp, Is this possible?
Hope to hear everyone's 383 mod list.
Thanks alot!
10-18-2005, 06:48 AM
#2
Banned
Join Date: Nov 1999
Posts: 89
Re: Who has 383 TPI motors????
The TPI setup was made for a 305, it flows so bad that a MiniRam swap from TPIS is worth about 75-95 HP on a stock motor because of the RPM increase. Thats why you never see a TPI stroker setup. Here is a copy and paste add for the miniram, it's what I will be using for my 383 setup.
"Mini-Ram Intake Manifold
This fabulous one-piece casting is ideal for the serious car nut. If used as a replacement over a stock Tuned Port intake, on a mild 350ci motor, you will see a 75-95+ HP gain. If you build the motor on the mild side, i.e. small cam and some porting, stroker motor, 100-125+ HP,over the stock or modified TPI intake is very possible. If you go on the wild side you will be able to exceed any single four barrel power numbers, all with greater driveability and economy.
Installs on existing TPI vehicles with just our Fuel Rail Kit and Level VI Prom. Use the Mini-Ram to replace and out-perform any carbureted system.
We have been driving this manifold for over ten years. It has wonderful throttle response, delivers more torque from 2000 to 2700 RPM than a stock or modified TPI, and gives a great rush of power from 3500 RPM to 6500 RPM.
The reason the TPI intake is so restrictive is due to its intake runner length, which is 17 inches long! Your typical carburator intake is about 5-6 inches long, and our Mini-Ram intake is 3 inches long. The shorter the runner the higher the peak RPM, the higher the peak RPM, the higher the HP number. This is why it makes so much more power.
On a built 350 with a bigger: base manifold, runners, ported plenum, 52mm T/B, and a ZZ-9 cam, peak HP is 380 at 4750 RPM,and peak torque will be 460lbs/ft, Put a Mini-Ram on the same motor, and peak HP will be 450 at 6000 RPM, with 430lbs/ft of torque. Sure you lose some torque, but you will still have a hard time hooking up, so the torque loss is not an issue. Over a stock TPI you would see easily over 100 more HP. If we do the same combo with a 383 the modified TPI would only be at 400HP at 4500 RPM, and 515lbs/ft of torque, basically a tow truck motor, all torque, and no RPM or top end. Put a Mini-Ram on and you will see 480HP at 5800 RPM, with 490 lbs/ft of toque, and a lot flatter toque curve, over a TPI long runner intake. And once again you will still have trouble hooking up.
This same runner concept is why the LT1 motors made 60 more HP over the TPI motors out of the box. If you look at stock TPI aluminum head flow numbers, and compare them to stock LT1 aluminum head flow numbers, you will see little difference, also the cam specs are very similar, and the throttle bodies, and cubic inches are the same. So why does the LT1 make more power? Simple, intake runner length, is the main difference, shorter runner more RPM, and RPM is HP. If GM put a 17 inch long intake runner on the LT1 motor, the numbers would be the same as the TPI motors. "
You can check it out yourself a www.tpis.com
"Mini-Ram Intake Manifold
This fabulous one-piece casting is ideal for the serious car nut. If used as a replacement over a stock Tuned Port intake, on a mild 350ci motor, you will see a 75-95+ HP gain. If you build the motor on the mild side, i.e. small cam and some porting, stroker motor, 100-125+ HP,over the stock or modified TPI intake is very possible. If you go on the wild side you will be able to exceed any single four barrel power numbers, all with greater driveability and economy.
Installs on existing TPI vehicles with just our Fuel Rail Kit and Level VI Prom. Use the Mini-Ram to replace and out-perform any carbureted system.
We have been driving this manifold for over ten years. It has wonderful throttle response, delivers more torque from 2000 to 2700 RPM than a stock or modified TPI, and gives a great rush of power from 3500 RPM to 6500 RPM.
The reason the TPI intake is so restrictive is due to its intake runner length, which is 17 inches long! Your typical carburator intake is about 5-6 inches long, and our Mini-Ram intake is 3 inches long. The shorter the runner the higher the peak RPM, the higher the peak RPM, the higher the HP number. This is why it makes so much more power.
On a built 350 with a bigger: base manifold, runners, ported plenum, 52mm T/B, and a ZZ-9 cam, peak HP is 380 at 4750 RPM,and peak torque will be 460lbs/ft, Put a Mini-Ram on the same motor, and peak HP will be 450 at 6000 RPM, with 430lbs/ft of torque. Sure you lose some torque, but you will still have a hard time hooking up, so the torque loss is not an issue. Over a stock TPI you would see easily over 100 more HP. If we do the same combo with a 383 the modified TPI would only be at 400HP at 4500 RPM, and 515lbs/ft of torque, basically a tow truck motor, all torque, and no RPM or top end. Put a Mini-Ram on and you will see 480HP at 5800 RPM, with 490 lbs/ft of toque, and a lot flatter toque curve, over a TPI long runner intake. And once again you will still have trouble hooking up.
This same runner concept is why the LT1 motors made 60 more HP over the TPI motors out of the box. If you look at stock TPI aluminum head flow numbers, and compare them to stock LT1 aluminum head flow numbers, you will see little difference, also the cam specs are very similar, and the throttle bodies, and cubic inches are the same. So why does the LT1 make more power? Simple, intake runner length, is the main difference, shorter runner more RPM, and RPM is HP. If GM put a 17 inch long intake runner on the LT1 motor, the numbers would be the same as the TPI motors. "
You can check it out yourself a www.tpis.com
10-18-2005, 07:30 AM
#3
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Join Date: Apr 1999
Posts: 205
Re: Who has 383 TPI motors????
Yes I know all too well about Miniram's etc....
Not to be rude, but I am going with the Superram, So I dont have th change my factory gears which are 3.07's on my 88 Vette 4+3. This setup is not for my camaro, its for the vette.
I am more interested in SR set-ups then MR setups.
Thanks Stubbs.
Hoping there are ppl who can list there 383 combo's and what power they are making. Like I said I am looking for at least 380RWHP, and I wont be using a MR intake. The MR requires a gear swap to at least a 3.54 gear, That is something I dont want to do. I have seen MR, and SR cars at the track. They both pull strong numbers.
Not to be rude, but I am going with the Superram, So I dont have th change my factory gears which are 3.07's on my 88 Vette 4+3. This setup is not for my camaro, its for the vette.
I am more interested in SR set-ups then MR setups.
Thanks Stubbs.
Hoping there are ppl who can list there 383 combo's and what power they are making. Like I said I am looking for at least 380RWHP, and I wont be using a MR intake. The MR requires a gear swap to at least a 3.54 gear, That is something I dont want to do. I have seen MR, and SR cars at the track. They both pull strong numbers.
10-18-2005, 09:04 AM
#4
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Join Date: Sep 2003
Location: Roanoke,Virginia
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10-18-2005, 09:20 AM
#5
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Join Date: Sep 1998
Location: US 1 Mile Marker 52 in the Florida Keys
Posts: 8,321
Re: Who has 383 TPI motors????
GOD....look at the torque numbers on those modified TPI setups...insane
i would SO love to build a street car with one of those setups. who cares if it's 40hp less...it has almost 50lb-ft more torque.
for the street that would rock.
wonder what rpms those were at
i would SO love to build a street car with one of those setups. who cares if it's 40hp less...it has almost 50lb-ft more torque.
for the street that would rock.
wonder what rpms those were at
10-18-2005, 10:55 AM
#7
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Join Date: Apr 1999
Posts: 205
Re: Who has 383 TPI motors????
Originally Posted by mako350Z28
yeah thanks, i bought that magazine.
it's not a bad read.
so who has 383 TPI motors? and what are your #"s?
Last edited by pineapplesink6; 10-18-2005 at 03:56 PM.
10-18-2005, 11:29 PM
#8
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Join Date: Jul 2003
Location: Hagerstown, Md
Posts: 457
Re: Who has 383 TPI motors????
Originally Posted by stubbs
The TPI setup was made for a 305, it flows so bad that a MiniRam swap from TPIS is worth about 75-95 HP on a stock motor because of the RPM increase.
If used as a replacement over a stock Tuned Port intake, on a mild 350ci motor, you will see a 75-95+ HP gain. If you build the motor on the mild side, i.e. small cam and some porting, stroker motor, 100-125+ HP,over the stock or modified TPI intake is very possible. If you go on the wild side you will be able to exceed any single four barrel power numbers, all with greater driveability and economy.
If used as a replacement over a stock Tuned Port intake, on a mild 350ci motor, you will see a 75-95+ HP gain. If you build the motor on the mild side, i.e. small cam and some porting, stroker motor, 100-125+ HP,over the stock or modified TPI intake is very possible. If you go on the wild side you will be able to exceed any single four barrel power numbers, all with greater driveability and economy.
the stock tuned port didn't do all that bad according to the mag article. Of course the bigger the motor, the more you'd benefit from a better intake. Just my .02 cents.
10-19-2005, 06:12 AM
#9
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Join Date: Nov 1999
Posts: 89
Re: Who has 383 TPI motors????
To me a mild mod motor is a CAI and a catback. I don't know anyone without that. I bet you would still see 50 HP on a stock motor because of how much higher the MR will let you rev, hell its almost an extra 30% of useable RPM, thats a LOT!
My Vette gives nothing above 4700 RPM, thats just ridiculous, the TPI setup sucks period, unless you want a towing motor.
My Vette gives nothing above 4700 RPM, thats just ridiculous, the TPI setup sucks period, unless you want a towing motor.
10-19-2005, 07:14 AM
#11
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Join Date: Apr 1999
Posts: 205
Re: Who has 383 TPI motors????
Originally Posted by mako350Z28
Hey, a 410hp/500ft-lb TPI setup is still a great street engine. I would love to have one in my car.
i am sure it is, but it wouldnt be a good 1/4 mile track motor. it wont meet my goals.
10-19-2005, 07:58 AM
#12
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Join Date: Dec 1998
Location: Haslett, Michigan
Posts: 2,161
Re: Who has 383 TPI motors????
No superram here, but my minirammed 385 made 396 RWHP and 383 ft.lb of torque on the livernois chassis dyno last August. That's something like 450HP/433 ft.lb torque at the flywheel. The car is trapping at 114 MPH in the quarter and should do elevens if only I can get my launch figured out. It also gets 19 MPG on the highway.
http://www.ws6transam.org/dyno.jpg
So there you go. The car is great fun and power starts at about 2200 RPM.
http://www.ws6transam.org/dyno.jpg
So there you go. The car is great fun and power starts at about 2200 RPM.
10-19-2005, 08:09 AM
#13
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Join Date: Apr 1999
Posts: 205
Re: Who has 383 TPI motors????
Originally Posted by ws6transam
No superram here, but my minirammed 385 made 396 RWHP and 383 ft.lb of torque on the livernois chassis dyno last August. That's something like 450HP/433 ft.lb torque at the flywheel. The car is trapping at 114 MPH in the quarter and should do elevens if only I can get my launch figured out. It also gets 19 MPG on the highway.
http://www.ws6transam.org/dyno.jpg
So there you go. The car is great fun and power starts at about 2200 RPM.
http://www.ws6transam.org/dyno.jpg
So there you go. The car is great fun and power starts at about 2200 RPM.
whats the race weight? and do u have msn?