Don Terrill’s Speed-Talk

bob460 wrote: ↑Fri Sep 08, 2023 1:06 am

SpeierRacingHeads wrote: ↑Thu Sep 07, 2023 12:47 pm

I hear you, but no thanks...

I'm not a small spring guy.

Can i ask why your not a small spring guy?

Also with the flat torque curve............where is Stall converter going to be best rpm wise?

6600.. The engine peak tq at 6100. 66-8800

Chad, Those are some wildly shaped retainers, never seen that before. What is your coil bind clearance? I just had new springs put in and set at .050”, installed heights are 1.975" / 1.950", 390# / 1,000#. Found another 3 CFM while at it. What size are the headers going to be? Congratulat...

PSI makes a 1.300" spring that IMO would work well for you and lose some mass/weight in the process . We even use it on boosted stuff, running .850" + lift and 45psi, and they run them at 9500 rpm thru the lights on a good pass . The valve weight is similar to what you are suing due to be...

hoffman900 wrote: ↑Thu Sep 07, 2023 11:56 am Looking forward to seeing this run, Chad.

Me also. I have a guy coming to build me a new set of headers, then I'm ready.

Been a long, long, journey.

nevdos wrote: ↑Thu Sep 07, 2023 11:31 am Why such a large OD spring used for "relatively" light valve setup ?
I assume this is a sub 9k setup?
Thanks

8800 through lights.

nevdos wrote: ↑Thu Sep 07, 2023 9:47 amValve weights?

2.02/5.160/.341 = 107g
1.60/5.160/.341 = 94g

Valvetrain

Top half.. .165 wall 7/16 pushtubes Ferrea Hollow Stem valves BAM .903 bushed Jesel solid rockers Manley 1.500 springs Manley titanium locks Manley titanium retainers https://scontent.fict1-1.fna.fbcdn.net/v/t39.30808-6/370895036_900144778226461_8344939279472361395_n.jpg?_nc_cat=100&ccb=1-7&...

Here is an early pull from 5800-7500 https://www.youtube.com/watch?v=nFXyidQlSkk Sounds very tame at idle. What was the LSA Mike ground you if you cant tell us? Well it's in at 28º BTDC... That help? :) https://scontent.fict1-1.fna.fbcdn.net/v/t39.30808-6/370598504_897003205207285_37711880097994118...

Here is an early pull from 5800-7500

https://www.youtube.com/watch?v=nFXyidQlSkk

I just got back from spending 2 days in Paris TN dynoing engines. One was my 1970 LT1 Super Stock engine. Mike did a cam for it was we totally went against the "norm." It was a 55 tool steel, less duration, more rocker, and way wider LSA... Some folks I knew were worried about no torque, e...

My v4.70 testimonial. I just got back from Paris TN where we spent 2 days on the dyno. One of the engines was my 1970 LT1 Super Stock engine. I had modeled it in the program and had the number I was shooting for. It came within 6 hp and nailed the torque! I had a new set of headers built and we didn...

Chris Cobb built a 454 with my v3.00 23º heads. .740/.700 lift, 272/282 cam.

Runs 5.70s@118 in a 3250 S10.

This port is close. what about the Intake Manifold Bolt hole between the Port pairs ? in the past i've plug them up in a few ways : 1= easy .. with epoxy 2= Pioneer tapered cast-iron plugs ( for cast iron Heads ) 3= just used a regular bolt w/epoxy on threads, sawed off bolt head , milled intake si...

This port is close.