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Search found 793 matches

by BradH
Mon Oct 14, 2019 11:40 am
Forum: Race Cars & Parts - For Sale or Wanted
Topic: Holley/QFT hybrid 1.58"v AN 4150
Replies: 0
Views: 37

Holley/QFT hybrid 1.58"v AN 4150

I went OCD buying/building carbs for my car and have decided to sell a couple: Holley/QFT hybrid 1.58"-venturi Annular 4150 - QFT/Proform 1.58"-venturi "1050" main body - QFT billet 12-hole x .600"-ID billet annular boosters - Holley Ultra H/XP billet 5-emulsion metering blocks - BLP Pro Flow billet...
by BradH
Mon Oct 14, 2019 11:36 am
Forum: Race Cars & Parts - For Sale or Wanted
Topic: Holley/QFT hybrid 1.45"v 4150
Replies: 0
Views: 24

Holley/QFT hybrid 1.45"v 4150

I went OCD buying/building carbs for my car and have decided to sell a couple: Holley/QFT hybrid 1.45"-venturi 4150 - QFT/Proform 1.45"-venturi "950" main body - BLP-modified Holley downleg boosters - Holley Ultra H/XP billet 5-emulsion metering blocks - Holley/BLP billet 1.75"-throttle 4150 base pl...
by BradH
Mon Oct 14, 2019 11:32 am
Forum: Race Cars & Parts - For Sale or Wanted
Topic: BLP RapidJet Quick-Change Metering Blocks
Replies: 0
Views: 28

BLP RapidJet Quick-Change Metering Blocks

This is a new pair of BLP RapidJet blocks: https://blp.com/cart/index.php?main_page=product_info&cPath=65_107_398&products_id=1740 BLP RapidJet.jpg They'll come with the following sets of interchangeable cartridges: (4) .033 IFR, .060 PVCR, 2 .029 e-holes at top & middle locations >> NVH3 w/ bottom ...
by BradH
Mon Oct 14, 2019 11:27 am
Forum: Race Cars & Parts - For Sale or Wanted
Topic: PAC 1243 Springs & Other Valvetrain Parts
Replies: 1
Views: 341

Re: PAC 1243 Springs & Other Valvetrain Parts

<< PRICE REDUCED! - PAC 1243 Spring package : Shipped in lower 48 US for $350 >> << PRICE REDUCED! - Smith Bros pushrods : Shipped in lower 48 US for $175 >> << PRICE REDUCED! - Manley 23682TS-16 H-13 Tool Steel retainers : Shipped in lower 48 US for $150 >> << PRICE REDUCED! - COMP Cams 4714-16 spr...
by BradH
Tue Oct 08, 2019 1:01 pm
Forum: Engine Tech
Topic: engine masters live feed?
Replies: 45
Views: 1814

Re: engine masters live feed?

Walter R. Malik wrote:
Sun Oct 06, 2019 10:31 am

Other Entries:
Adney Brown = "perfcrank"
Chris Pelczar = "czar racing"
Jesse Robinson = "RAMM"

Team members were many from here.
Did Jesse R (RAMM) show up? I know he was planning a BB Mopar, but don't know if he participated. Doesn't look like it from the results posted here...
by BradH
Tue Oct 08, 2019 12:55 pm
Forum: Engine Tech
Topic: Do pushrods generally bend in the middle or near the lifter end?
Replies: 10
Views: 519

Do pushrods generally bend in the middle or near the lifter end?

The papers I've read on column theory indicate that a pushrod should yield in the middle when it reaches its limit. However, I've also seen failed pushrods where the bending occurs much closer to the lifter end where the load initiates. Which is more typical from what you've seen? My working assumpt...
by BradH
Tue Oct 08, 2019 12:54 pm
Forum: Engine Tech
Topic: Roller lifter side load: pushrod angle vs offset pushrod seat
Replies: 5
Views: 355

Roller lifter side load: pushrod angle vs offset pushrod seat

On another forum there was a discussion on using offset rocker arms with standard (centered) vs offset-pushrod-seat roller lifters. Someone asked if the side load on the lifter is worse if the pushrod seat is centered w/ a more angled pushrod or when the pushrod seat is offset w/ a less angled pushr...
by BradH
Wed Sep 25, 2019 5:16 pm
Forum: Engine Tech
Topic: Limits for 91 octane
Replies: 14
Views: 804

Re: Limits for 91 octane

Given the parameters, how much compression can I run without detonating it to death? Similar build years ago w/ 9.8:1 CR needed a good octane booster even w/ 93 E10 pump fuel. No booster and 91 octane... maybe 9.0:1. FWIW, the cam in my build was an aggressive 254 at .050 sft on 108 LSA and the hea...
by BradH
Tue Sep 24, 2019 1:37 pm
Forum: Engine Tech
Topic: Limits for 91 octane
Replies: 14
Views: 804

Re: Limits for 91 octane

quickd100 wrote:
Tue Sep 24, 2019 1:12 pm
Given the parameters, how much compression can I run without detonating it to death?
Similar build years ago w/ 9.8:1 CR needed a good octane booster even w/ 93 E10 pump fuel. No booster and 91 octane... maybe 9.0:1.
by BradH
Fri Sep 20, 2019 5:03 pm
Forum: Engine Tech
Topic: Are valve springs w/ dampers less senstive to clearance from coil bind at max lift?
Replies: 5
Views: 385

Re: Are valve springs w/ dampers less senstive to clearance from coil bind at max lift?

Bump 'cuz I'm still hoping to get some feedback on this. I got a set of heads to assemble this weekend... :lol:
by BradH
Wed Sep 18, 2019 6:14 pm
Forum: Engine Tech
Topic: Are valve springs w/ dampers less senstive to clearance from coil bind at max lift?
Replies: 5
Views: 385

Re: Are valve springs w/ dampers less senstive to clearance from coil bind at max lift?

Brad....... just pull out the stops and go for the dual conicals. I thought about that seriously... right before the killer deal came up on the Isky/PSI dual w/damper spring sets. Got into multiple sets of Isky's and the rest of the hardware to run 'em for less than the dual conical springs < drool...
by BradH
Wed Sep 18, 2019 1:40 pm
Forum: Engine Tech
Topic: Are valve springs w/ dampers less senstive to clearance from coil bind at max lift?
Replies: 5
Views: 385

Are valve springs w/ dampers less senstive to clearance from coil bind at max lift?

I was checking the max lift vs coil bind specs for a variety of dual springs (PAC, Manley, Isky) and quite a few of the dual w/ damper springs had max lift ratings that were .100"+ from coil bind. However, some of the dual w/ damper springs were spec'd down in the .050-.060" clearance range, and all...
by BradH
Wed Sep 18, 2019 9:19 am
Forum: Engine Tech
Topic: Are Exh pushrods more stressed even in NA applications?
Replies: 35
Views: 1331

Re: Are Exh pushrods more stressed even in NA applications?

Warp Speed wrote:
Tue Sep 17, 2019 1:44 pm
Why is the exhaust valve lifted less than the intake?
I'm curious... did you ask this question to the poster who made this statement because:
(a) you didn't agree with him and were looking to debate it, or...
(b) because it's true and you wanted to see if he understood why?