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Author Topic: 90 LX with a cobra motor and silicate hoses  (Read 87461 times)
David Claflin
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Location: Redneck Riviera (Ft Walton Beach Florida)

« on: December 30, 2013, 09:27:30 pm »

01. Block: stock roller from my son's 94 cobra, has around 130K on it. Shortblock has new timing chain, high pressure pump, installed after I pressure washed it, inside and out. lifters came out of an explorer engine that was given to me, cam was under the workbench in the garage.
Displacement: 302
CR: stock is 9.2

02. Heads
Brand: ford
Model: gt-40 iron
Ported?: yes, owner ported
Has valve job courtesy of Coulter Racing heads, springs are just the outers from the 977 dual springs that were on my 306. I think they would be sold as comp 972's.

03. Camshaft (If the camshaft is custom, NOT providing this information is understandable, and NOT expected)
Brand: ford
Grind Number/Model: stock 5.0 HO cam
Int./Exh. Duration @.050": 211/206
Int./Exh. Lift: 470/470 with 1.7 Cobra rockers
Lobe Separation Angle: 114

04. Induction
Carbureted/EFI: EFI
Intake: Exploder, ported
Carb/Injector Size: 30llb
Throttle Body Size: 80MM-R
Downs Box upper

05. Tuner: that Claflin guy

06. Exhaust
Style: Accufab long tubes
Diameter: 1-3/4
Catted: N/A
"X" or "H": VRS 3"X
Mufflers: 3" ultraflo
3" flowsmasher tailpipes

07. Power Adder: for sissies 

08. Transmission
Manual/Auto: man stick, soon to be broken I'm sure
Model: t5
Plate/Clutch: Spec Stage II
Converter Stall:

09. Gears
Style: UNK
Ratio: 4.10
Differential Style: 8.8 31 SPLINE, I think it has a torsen diff, not a regular traction loc, it was in the car when I bought it.

10. Rear Suspension Setup: Team Z lowers, UMI uppers, solid upper bushings, Strange shocks, H+R supersport springs, mustang GT disc brakes

11. Front Suspension Setup: Team Z tubular K, control arms, strange 10 ways, 12/150 coilovers, Maximum motorsports caster/camber plates, mustang gt discs

12. Tires: 26x10 good year slicks, 165/80 radials front on weld drag stars

13. Car Weight: 2800-2900 race weight........I hope, the lighter the better

Other: Flaming river manual rack, no sway bars, no heat or A/C, no tab/tad solenoids, no cruise control. It still has door bars, and bumpers front and rear, and a radio, but only rear speakers  Cheesy. Carpet underlayment taken off and tarpaper pulled off the floor.

Time Slip: None yet, hopefully putting this up here will help me get it done by the end of this month. Hoping for mid-low 7's in the low 90's for MPH.
60ft:
300ft:
1/8th ET:
1/8th MPH:
1/4 ET:
1/4 MPH:

Dyno Data:
FWHP:
FWTQ:
RWHP:
RWTQ:
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1990 Red LX, 306, 80MM, ported gt40's, ported explorer upper accufab longtubes, 3" exhaust, 4.30's, 336/331
1985 LTD LX 347, 205 11R's, TFS-R, 90MMTB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
juiced coupe
Six figures worth of don't give a f*ck
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Location: Pascagoula, MS
The land mass between New Orleans and Mobile


« Reply #1 on: December 30, 2013, 10:19:55 pm »


07. Power Adder:  I'm too old and can't shift that fast.  Ouuch!

Fixed it for ya.  Angry

Where did the wheelchair smiley go?
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Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
jayh
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« Reply #2 on: December 30, 2013, 11:02:16 pm »

these are usually the FUNest builds
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425" pump gas 6.2@110
quickshift
Big Block
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Location: ontario canada
...I'm old as dirt (says Lil joe)


« Reply #3 on: December 31, 2013, 01:15:04 pm »

Lookin good so far!
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71 Comet, 289,351w heads,RR's,12.5 TRWs,ported torker/750DP, Liberty Top Loader (2.78), 9"/6.00s, tubbed,ladder bars,11.9xs@110 ..bla,bla,bla
84Cougar,88HO,Eddy RPM/700DP, 1.7RRs, shorty's, 8.8/4.10s,T-5/Hurst Pro Billet, K/C clutch...bla,bla,bla

Never shoot your mouth off unless your brain is loaded.   If you're not laughing...you're not living!
mighty mouse
"Prom King Mista Nathan Moonen"
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I'll be the Judge of that


« Reply #4 on: December 31, 2013, 03:08:14 pm »


07. Power Adder:  I'm too old and can't shift that fast.  Ouuch!

Fixed it for ya.
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1986 Mustang GT Convertible
Suspension and Differential by Team Z Motorsports
9.5 Deck Forged Stroker Shortblock by FordStrokers
Trick Flow High Ports and Super Vic EFI intake by Duane Busch

I'd rather be a fool who is loyal to his friends than a POS that jumps ship to save face. We were wrong in the end, but nobody can ever call us disloyal. I can live with that.
David Claflin
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Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #5 on: December 31, 2013, 05:05:10 pm »


07. Power Adder:  I'm too old and can't shift that fast.  Ouuch!

Fixed it for ya.  Angry

Where did the wheelchair smiley go?
LOL!! Thought that might get you riled up....

Had to laugh a minute ago looking at the build thread for this and how I thought I might have it going by the fall. How's the go, the best laid plans or some such nonsense...
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1990 Red LX, 306, 80MM, ported gt40's, ported explorer upper accufab longtubes, 3" exhaust, 4.30's, 336/331
1985 LTD LX 347, 205 11R's, TFS-R, 90MMTB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
289nate
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Location: Los Angeles

« Reply #6 on: December 31, 2013, 05:22:08 pm »

Throttle body is WAAAAAY to big!!!  It won't even idle with that big of a throttle body because there will be no velocity.  

A mid to low 7 would be outstanding with that set up.  You must be taking lessons from Rodney.

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\'65 fastback pump gas 289, 4.56 gears, and faceplated T5.  11.123 at 122.4
David Claflin
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Big Block
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Posts: 7907


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #7 on: December 31, 2013, 06:31:13 pm »

Throttle body is WAAAAAY to big!!!  It won't even idle with that big of a throttle body because there will be no velocity.  

A mid to low 7 would be outstanding with that set up.  You must be taking lessons from Rodney.

We've been helping each other out with stuff, bouncing ideas off of each other about things, talking each other off the ledge when it comes to some things.
I'm going to see what this motor will do. It'll only have a 4.10 initially, will probably just run the T5 and use the 4,30 gear, vs. getting an A5 and using the 4.56. The other glorified explorer motor that will go in after this one has more power potential so should run faster.
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1990 Red LX, 306, 80MM, ported gt40's, ported explorer upper accufab longtubes, 3" exhaust, 4.30's, 336/331
1985 LTD LX 347, 205 11R's, TFS-R, 90MMTB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
David Claflin
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Big Block
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Posts: 7907


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #8 on: January 01, 2014, 12:49:31 pm »

If I can get it down to 2900 with me in it, then with this first engine it should run a 7.4@92, we'll see how this works out.
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1990 Red LX, 306, 80MM, ported gt40's, ported explorer upper accufab longtubes, 3" exhaust, 4.30's, 336/331
1985 LTD LX 347, 205 11R's, TFS-R, 90MMTB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
Mr.Blue
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« Reply #9 on: January 02, 2014, 09:34:25 am »

If I can get it down to 2900 with me in it, then with this first engine it should run a 7.4@92, we'll see how this works out.

It'll run those numbers  if the track is decent.................probably 7.30's in good air...........7.40's missing 4th Tongue............be nice seeing another stick car banging away
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jayh
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« Reply #10 on: January 02, 2014, 09:51:42 am »

this thing would respond I think with some lift and some overlap but keep the duration short on the intake

#5 on the lower can always benefit from more work!
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425" pump gas 6.2@110
David Claflin
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Big Block
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Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #11 on: January 02, 2014, 07:56:39 pm »

this thing would respond I think with some lift and some overlap but keep the duration short on the intake

#5 on the lower can always benefit from more work!
THe intake has been ported, pretty well I think. There's quite a few things that could be done better, the point of this was to see what could be done with stock stuff that I had laying around taking up space.
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1990 Red LX, 306, 80MM, ported gt40's, ported explorer upper accufab longtubes, 3" exhaust, 4.30's, 336/331
1985 LTD LX 347, 205 11R's, TFS-R, 90MMTB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
David Claflin
Adv_SBFTechie
Big Block
****
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Posts: 7907


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #12 on: November 15, 2014, 06:39:32 pm »

Put this on the dynocom today too. I forgot to get the printout for this, but it made 316 RWHP@5700 RPM, and 318 RWTQ @ dammit I forgot.... . I was kind of surprised, torque curve was pretty flat, it was about 50 ft. pounds lower than the cobra, but I thought it did decent for a box upper, and ported cobra heads.
I'll have to see if he saved anything from today and get it to post.
Logged

1990 Red LX, 306, 80MM, ported gt40's, ported explorer upper accufab longtubes, 3" exhaust, 4.30's, 336/331
1985 LTD LX 347, 205 11R's, TFS-R, 90MMTB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
David Claflin
Adv_SBFTechie
Big Block
****
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Posts: 7907


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #13 on: November 21, 2014, 09:02:20 am »

Forgot I took a video of this turd, so posted it on youtube. and corral
https://www.youtube.com/watch?v=vRGGkohBRT0&list=UUDiBIRkLaI3jBXHygW1rAAw
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1990 Red LX, 306, 80MM, ported gt40's, ported explorer upper accufab longtubes, 3" exhaust, 4.30's, 336/331
1985 LTD LX 347, 205 11R's, TFS-R, 90MMTB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
David Claflin
Adv_SBFTechie
Big Block
****
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Posts: 7907


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #14 on: November 10, 2015, 08:45:34 pm »

Just to throw an update on this. I still haven't had it to the track and made a clean pass, but I think I've got the clutch issues sorted out. I had the engine out to swap the heads to another set of GT40s I had ported, and milled .020. I sold the explorer lower, and box upper I had on here, I needed another intake and the only one I had was a TFS-R with a box upper, so threw that on. Only changes aside from those mentioned are a set of beehive springs, 4.30 gears, and a spool. It pulls hard to 6000, so hope to bring it up to Johnnys to throw it on the dyno. I plan to run it with full exhaust, pull mufflers and tailpipes, and put bullets after the x, and then finally with bullets off the headers, should be a good comparison I think.
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1990 Red LX, 306, 80MM, ported gt40's, ported explorer upper accufab longtubes, 3" exhaust, 4.30's, 336/331
1985 LTD LX 347, 205 11R's, TFS-R, 90MMTB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
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