street/strip 511" build with dyno results
#3098206
11/29/22 08:56 PM
11/29/22 08:56 PM
|
Joined: Mar 2003
Posts: 9,099 Rogue River, OR
Jeremiah
OP
master
|
OP
master
Joined: Mar 2003
Posts: 9,099
Rogue River, OR
|
Howdy,
I was asked to share my 511 low deck build that will live in our "68 Dart GTS. The engine was built within the following parameters:
-Must fit under stock hood with n20 plate and 4" filter
-Can run on pump 91 in a pinch (I am a Sunoco 110 guy)
-Stock appearing long block i.e. aside from headers, intake and carb it resembles an original 383 magnum -250hp nitrous friendly
-target hp/tq 625/625, 6500 max engine speed (shift 6200ish, cross stripe 6100ish)
The car is 3550 lb on the starting line with driver etc. I am moving up to a 28x11.50 ET Bias DOT and also have a set of 28x9st (stiff wall) to try.
|
|
|
Re: street/strip 511" build with dyno results
[Re: Jeremiah]
#3098210
11/29/22 09:07 PM
11/29/22 09:07 PM
|
Joined: Mar 2003
Posts: 9,099 Rogue River, OR
Jeremiah
OP
master
|
OP
master
Joined: Mar 2003
Posts: 9,099
Rogue River, OR
|
The parts list:
400 block, aluminum caps/studs 4.250x2.625x2.200 PEP crank RPM rods, 6.535/2.200/.990 with ARP 2000s 4.375 bore w/ 12.5cc reverse dome pistons, 1.32CH 1/16×1/16×3/16 hellfire rings
440 source heads decked to get 80cc chambers REV valves, new guides, two new seats amd a light bowl cleanup. Comp 1.5 ratio steel rockers Tensilemax retainers with CM locks Isky 9915 springs at 1.930ish IH 3/8 push rods Stock 68 383 valve covers
Bullet solid roller spec'd by Hardcore B -.650 lift, 275/280 109 street roller
Holley SD intake with the floor dams removed
4150 1000cfm Thumper carb
1-7/8×3" headers
|
|
|
Re: street/strip 511" build with dyno results
[Re: Jeremiah]
#3098211
11/29/22 09:13 PM
11/29/22 09:13 PM
|
Joined: Aug 2011
Posts: 2,853 Pattison Texas
CSK
master
|
master
Joined: Aug 2011
Posts: 2,853
Pattison Texas
|
That should be a very fun street car !!!!!
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
|
|
|
Re: street/strip 511" build with dyno results
[Re: CSK]
#3098257
11/30/22 01:02 AM
11/30/22 01:02 AM
|
Joined: Mar 2003
Posts: 9,099 Rogue River, OR
Jeremiah
OP
master
|
OP
master
Joined: Mar 2003
Posts: 9,099
Rogue River, OR
|
Dyno sheet:
Last edited by Jeremiah; 11/30/22 01:05 AM.
|
|
|
Re: street/strip 511" build with dyno results
[Re: Jeremiah]
#3098260
11/30/22 01:24 AM
11/30/22 01:24 AM
|
Joined: Oct 2006
Posts: 1,264 New York, USA
Chargerfan68
pro stock
|
pro stock
Joined: Oct 2006
Posts: 1,264
New York, USA
|
Very nice build and results! Similar build to the 505” in my ‘73 charger. Any port work done to those stealths? Were they cnc stealths or standard? Those Comp Magnum rockers have been serving me very very well for 3 years now with track time and lots of street miles.
Good luck at the races…..should run real hard.
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
|
|
|
Re: street/strip 511" build with dyno results
[Re: Chargerfan68]
#3098261
11/30/22 01:35 AM
11/30/22 01:35 AM
|
Joined: Mar 2003
Posts: 9,099 Rogue River, OR
Jeremiah
OP
master
|
OP
master
Joined: Mar 2003
Posts: 9,099
Rogue River, OR
|
The heads were not ported. There has been speculation that a bigger intake and backing up the cam a few deg would net substantial gains.
Thank you for the feedback kn the rockers. I thought they were an exceptional value.
Still rocking the all aluminum crash box:
|
|
|
Re: street/strip 511" build with dyno results
[Re: DusterKid]
#3098284
11/30/22 08:29 AM
11/30/22 08:29 AM
|
Joined: Mar 2003
Posts: 9,099 Rogue River, OR
Jeremiah
OP
master
|
OP
master
Joined: Mar 2003
Posts: 9,099
Rogue River, OR
|
11:1 CR
I usually run a 50/50 mix of pump 91 and 110 on the street. 112 or 116 on the kit depending on the jets.
Ty!
|
|
|
Re: street/strip 511" build with dyno results
[Re: HardcoreB]
#3098289
11/30/22 09:13 AM
11/30/22 09:13 AM
|
Joined: Jan 2003
Posts: 8,163 Plymouth, MI
Blusmbl
master
|
master
Joined: Jan 2003
Posts: 8,163
Plymouth, MI
|
That's super inconspicuous, I dig it! Really impressive power from unported Stealths!
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
|
|
|
Re: street/strip 511" build with dyno results
[Re: Blusmbl]
#3098329
11/30/22 11:16 AM
11/30/22 11:16 AM
|
Joined: Dec 2021
Posts: 1,117 Loudoun County, VA
Brad_Haak
super stock
|
super stock
Joined: Dec 2021
Posts: 1,117
Loudoun County, VA
|
Looks fun!
Anyone else notice the "L2" AFR bank is consistently leaner than the "L1"?
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
|
|
|
Re: street/strip 511" build with dyno results
[Re: Brad_Haak]
#3098334
11/30/22 11:27 AM
11/30/22 11:27 AM
|
Joined: Jan 2003
Posts: 14,492 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
|
Bullet solid roller spec'd by Hardcore B -.650 lift, 275/280 109 street roller 275/280@.050?
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: street/strip 511" build with dyno results
[Re: fast68plymouth]
#3098341
11/30/22 12:01 PM
11/30/22 12:01 PM
|
Joined: Mar 2003
Posts: 9,099 Rogue River, OR
Jeremiah
OP
master
|
OP
master
Joined: Mar 2003
Posts: 9,099
Rogue River, OR
|
Bullet solid roller spec'd by Hardcore B -.650 lift, 275/280 109 street roller 275/280@.050? 274/283@.050 to be exact sir.
|
|
|
Re: street/strip 511" build with dyno results
[Re: Brad_Haak]
#3098343
11/30/22 12:02 PM
11/30/22 12:02 PM
|
Joined: Mar 2003
Posts: 9,099 Rogue River, OR
Jeremiah
OP
master
|
OP
master
Joined: Mar 2003
Posts: 9,099
Rogue River, OR
|
Looks fun!
Anyone else notice the "L2" AFR bank is consistently leaner than the "L1"? There was an exhaust leak developing on the last two pulls.
|
|
|
Re: street/strip 511" build with dyno results
[Re: powertrip]
#3098372
11/30/22 01:17 PM
11/30/22 01:17 PM
|
Joined: Mar 2003
Posts: 9,099 Rogue River, OR
Jeremiah
OP
master
|
OP
master
Joined: Mar 2003
Posts: 9,099
Rogue River, OR
|
Iplease keep the following in mind - ts a small tire stick car that races om limited or no prep. Not a bracket car that hooks a 14x32 in the car wash lol. I'm more into all out racing cmpetition than the stop light to stop light fonzi car show thing too. 1/8th or 1/4 mile from a dig.
The plan is a bigger intake/glass hood and some CNC work on the heads. I don't want the engine making 500 ft lb of tq at 2500 because it makes the car undrivable on the street. Those of us that have big hp cars woth a limited tire and a stick know what I am getting at here.
As it sits we will make 800+ on nitrous.
To all of the " i would have done it different " cfolks...what would you do and why? Keep in mind that this is a small tire, limited prep street strip car with a stick.
|
|
|
|
|