| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
08-07-2018, 11:27 AM
|
|||
|
|||
Another DCI Motorsports pump gas street cruiser
I wanted to share with everyone another pump gas combo in a good client of mine Joe Bass's 1971 Lemans. He is using our street ported DCI RA5 Tunnel Port top end kit on his 455 factory block. It has 10.8 - 1 compression, 250 intake, 259 exhaust @ .050", a single 4150 carburetor, DCI/Mad Dog 2" headers, 3" exhaust, 3.90 gear. Joe drives this on the street regularly. He wanted something unique, but fast. He just got the engine in the car right before the Pontiac Nationals so he hasn't had any time to tune it yet, but it still ran pretty good. It has a slight stumble when he goes WOT so it hurt his 60 foot times some. I think they are 1.68 or 1.69 with the stumble, but still ran 11.teens all weekend. Not to bad for a full interior stock suspension heavy weight on pump gas. This car will run in the 10's once he has a chance to sort it out.
__________________
Don Johnston DCI MOTORSPORTS LLC 330-850-5050 shop 330-628-3354 cell Designer if the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads !!!!! |
|
#2
08-07-2018, 12:17 PM
|
|||
|
|||
|
Nice
__________________
Conrad 79 Trans AM 406 #12 heads Torker II intake Crower 60210 750 holley vac. sec. T400 3500 Stall 3:73:1 rear.  ECMTTFMFers. IHTTFMFers.
|
|
#3
08-08-2018, 08:48 AM
|
||||
|
||||
|
Very cool car and it's nice to see real (not computer generated/hypothetical)examples! He definitely accomplished unique status
__________________
Chris D 69 GTO Liberty Blue/dark blue 467, 850 Holley, T2, Edelbrock Dport 310cfm w Ram Air manifolds, HFT 245/251D .561/.594L, T400, 9" w 3.50s 3905lbs 11.59@ 114, 1.57/ 60' |
|
#4
08-08-2018, 08:27 PM
|
||||
|
||||
|
Don-
455 cubic inch or larger? What are the street flow numbers? Would that cam be happy pulling an overdrive at 2200 rpm? |
|
#5
08-09-2018, 12:13 AM
|
||||
|
||||
|
What was his mph?
|
|
#6
08-09-2018, 10:30 AM
|
|||
|
|||
|
Around 123 in the quarter. I don't know what it was in the eight. I'll try to find out.
__________________
Don Johnston DCI MOTORSPORTS LLC 330-850-5050 shop 330-628-3354 cell Designer if the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads !!!!! |
|
#7
08-09-2018, 10:41 AM
|
|||
|
|||
|
Quote:
Flow on the intake is 426 at an inch, 382 at .650" with a 2.25 valve. Exhaust 290 at an inch, 265 at .650" with a 1.700 valve. My heads as cast flow right at 400 at an inch.. With our street port work they flow 397 at .700" Cam has 36 degree's overlap so it's just starting to smooth out at that rpm. I would say it would be happy there.
__________________
Don Johnston DCI MOTORSPORTS LLC 330-850-5050 shop 330-628-3354 cell Designer if the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads !!!!! |
|
#8
08-09-2018, 11:30 AM
|
|||
|
|||
|
Just talked to Joe. He was running 100 MPH at the eighth.
__________________
Don Johnston DCI MOTORSPORTS LLC 330-850-5050 shop 330-628-3354 cell Designer if the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads !!!!! |
|
#9
08-09-2018, 04:11 PM
|
||||
|
||||
|
My TA with my first E head motor and a 259/264@ 0.050 roller ran close to that mph and 10.90s in the 1.5 and 6.9s in the 1/8th weighing 3750. So he should be in the 10s when he gets it dialed in for sure.
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
