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Formulas
Forum:
Pontiac - Street
03-25-2024, 11:53 AM
Replies:
32
Diagnosing Loss in Performance and WOT Backfires
Views:
790
Posted By
Formulas
Its easy to inspect plug colors and condition, ...
Its easy to inspect plug colors and condition, also you can figure if its systemic or a particular cylinder along with a compression check
if there is no outliers with these two things then...
Forum:
Pontiac - Street
03-24-2024, 09:57 PM
Replies:
21
Rear suspension issue, I think
Views:
526
Posted By
Formulas
they are fairly rigid even when roset welds are...
they are fairly rigid even when roset welds are broken but the joint will flex under power then rear wheels dont track truely straight steering the car
supporting the frame and jacking the center...
Forum:
Pontiac - Race
03-24-2024, 09:46 PM
Replies:
11
dowel bearings for pontiac rj
Views:
300
Posted By
Formulas
I have a stock rod cap that a machinest drilled...
I have a stock rod cap that a machinest drilled and installed a drill bushing in it for me for my BME rods i can loan it to you, might want to verify same size hole first i can check tomorrow
Forum:
Pontiac - Street
03-24-2024, 09:21 PM
Replies:
21
Rear suspension issue, I think
Views:
526
Posted By
Formulas
Are your axle tubes welded to center section? If...
Are your axle tubes welded to center section? If one let loose a car will want to swap lanes on you per my experience with a 1966 GTO
put jack stands under rear frame and floor jack center...
Forum:
Pontiac - Race
03-22-2024, 06:45 PM
Replies:
8
oil level in relation crank windage tray?
Views:
295
Posted By
Formulas
If you overfill to account for oil in passages...
If you overfill to account for oil in passages during running there will still be a period during startup that this overfill will be a negative.
its best to check oil level soon after running...
Forum:
Pontiac - Race
03-22-2024, 02:25 PM
Replies:
8
oil level in relation crank windage tray?
Views:
295
Posted By
Formulas
Its my opinion you want oil level under the tray ...
Its my opinion you want oil level under the tray
Oil is supposed to fly off the crank hit the tray once it hits the tray then it obviously stops flying around and gravity allows it to migrate...
Forum:
Pontiac - Street
03-21-2024, 10:25 AM
Replies:
33
Edelbrock VRS 4150 4-barrel Holley-style carbs
Views:
684
Posted By
Formulas
The old school Holley 4bbl is rated @ 1.5?...
The old school Holley 4bbl is rated @ 1.5? pressure drop take the same base plate with a smaller venturi flow it at a higher drop 2.0 and the carb will pass the same CFM.?
These numbers do not...
Forum:
Pontiac - Street
03-19-2024, 04:56 PM
Replies:
19
Best one wire alternator
Views:
765
Posted By
Formulas
Some years back when pick a part in SoCa. was...
Some years back when pick a part in SoCa. was full of rear wheel drive cars i very often saw cars people gave up on after putting new parts on alternators with shine and a new sticker, starter...
Forum:
Pontiac - Race
03-17-2024, 04:22 PM
Replies:
25
FYI…New Moldex crank for sale on FB Marketplace
Views:
1,273
Posted By
Formulas
Is that double cut short keyway a source...
Is that double cut short keyway a source fingerprint
Forum:
Pontiac - Street
03-16-2024, 07:45 PM
Replies:
34
‘79 W72 Y84 4-Speed New Cam Search
Views:
1,191
Posted By
Formulas
After running a 2800 and 2801 and a 068 cam in a...
After running a 2800 and 2801 and a 068 cam in a 350, The 2801 shouldn't be to much cam in your 400 with a stick it has more low end torque than a 068 and will have more legs than a 2800
Forum:
Pontiac - Street
03-16-2024, 11:11 AM
Replies:
39
Oil viscocity 5W50
Views:
1,776
Posted By
Formulas
Oil marketed for Diesel also suffered a reduction...
Oil marketed for Diesel also suffered a reduction in additives just like Automotive oils just at a later date
Forum:
Performance Parts For Sale/Wanted
03-15-2024, 07:21 PM
Replies:
5
WTB: 9.400 5/16 pushrods
Views:
219
Posted By
Formulas
My PM didn't show up in my sent/out box , i...
My PM didn't show up in my sent/out box , i wasnt even sure it sent, good luck with build.
Forum:
Performance Parts For Sale/Wanted
03-14-2024, 08:41 AM
Replies:
5
WTB: 9.400 5/16 pushrods
Views:
219
Posted By
Formulas
Sent a PM..
Sent a PM..
Forum:
Performance Parts For Sale/Wanted
03-13-2024, 08:12 PM
Replies:
5
WTB: 9.400 5/16 pushrods
Views:
219
Posted By
Formulas
if you could use 9.45 i have these sitting around...
if you could use 9.45 i have these sitting around doing nothing, bought them used changed my rocker arms didn't need these, 5 are slightly different from the others, see photos
Forum:
Pontiac - Street
03-11-2024, 01:26 PM
Replies:
25
200-4R questions
Views:
797
Posted By
Formulas
750HP @ 5500 RPM is different from 750HP @ 7000...
750HP @ 5500 RPM is different from 750HP @ 7000 RPM
Drivelines S/B rated in torque
Like connecting rods that are rated for HP should be rated for RPMs with a given weight on the end
Forum:
Pontiac - Street
03-06-2024, 11:47 AM
Replies:
37
400 dies in gear
Views:
1,558
Posted By
Formulas
post #21 isnt real clear on sequence of events...
post #21 isnt real clear on sequence of events and
" Then started acting up. Something had changed besides the initial timing, causing the issue. "
something had changed besides the initial...
Forum:
Pontiac - Street
03-06-2024, 09:32 AM
Replies:
37
400 dies in gear
Views:
1,558
Posted By
Formulas
What shape is your timing chain in? Maybe it...
What shape is your timing chain in? Maybe it jumped
you can take dist cap off and use a socket on front of crank rotate engine back and forth see how much crank turns before dist. easy peasy
...
Forum:
70-73 Firebird & TA TECH
03-04-2024, 10:48 AM
Replies:
4
1970 formula ? part ID help please
Views:
291
Posted By
Formulas
I have 2 auto 70 Forms 1 with 80 amp alt and a 70...
I have 2 auto 70 Forms 1 with 80 amp alt and a 70 Esprit 4 speed never seen a bracket like that.
no stamped P/Ns ?
Forum:
Pontiac - Street
03-03-2024, 02:04 PM
Replies:
23
Cam Degree wheel needed
Views:
831
Posted By
Formulas
https://s1partscenter.com/brands/cummins/key/39440...
https://s1partscenter.com/brands/cummins/key/3944039
from the pictures and what little specs i can find .. this key seems to have minimal offset
some mercedes engines have the same dimensions...
Forum:
Pontiac - Street
03-01-2024, 09:49 AM
Replies:
26
Head bolts loosening
Views:
1,273
Posted By
Formulas
My hypothesis, and thats all it is, of oil...
My hypothesis, and thats all it is, of oil laying in a blind hole has nothing to do with the head of the bolt area
simply put a head bolt in a blind hole and excessive amounts of oil cannot...
Forum:
Pontiac - Street
02-29-2024, 12:42 PM
Replies:
26
Head bolts loosening
Views:
1,273
Posted By
Formulas
A possible culprit can be to much oil laying in a...
A possible culprit can be to much oil laying in a blind bolt hole
bolt goes down hydro locks on the oil then in time enough oil passes by the threads un does percieved torque
reason i would put a...
Forum:
Pontiac - Street
02-28-2024, 06:26 PM
Replies:
31
Swapped Trans...Have bad Driveline Angle now
Views:
1,334
Posted By
Formulas
Seems like shimming the tailshaft of trans and...
Seems like shimming the tailshaft of trans and tapered leaf spring shims you could make it happier
I used these type of shims to keep the old style traction bars up off the ground and closer to...
Forum:
Pontiac - Street
02-27-2024, 02:05 PM
Replies:
23
Cam Degree wheel needed
Views:
831
Posted By
Formulas
My last cam degree came in spot on, new Scat...
My last cam degree came in spot on, new Scat forged crank, new Comp cams cam, new Cloyes timing set.
Checked every aspect along the way 3 different times for sanity
Forum:
Pontiac - Street
02-27-2024, 09:21 AM
Replies:
15
Running Rich, can't figure out why
Views:
662
Posted By
Formulas
Another consideration after a 3 year cocoon ...
Another consideration after a 3 year cocoon Fuel quality.
Basically 2 ways to set holley floats not running bowl off physical measurements
or engine running bowl screws out watching fuel...
Forum:
Pontiac - Street
02-26-2024, 07:32 PM
Replies:
23
Cam Degree wheel needed
Views:
831
Posted By
Formulas
I have the Summit wheel of fortune, No complaints...
I have the Summit wheel of fortune, No complaints here.
Showing results 1 to 25 of 500
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