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Search: Posts Made By: skinny z
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Forum: TPI
Yesterday, 10:17 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

CFM aside, It's the discussion of velocity that intrigues me the most. And it's this area and the focus on the actual FPS value is where I'm learning the most. It's not that I'm going to be able to...
Forum: Tech / General Engine
04-27-2024, 11:45 AM
Replies: 14
Views: 526
Posted By skinny z

Re: Vortec vs Promaxx vs AFR enforcer vs Jegs aluminum

I had over the counter Vortecs purchased in 2002 or so. Put about 75 000 miles on them. Original guides (cast iron is a long liver). One valve job. Ran them bone stock at first then went with...
Forum: Tech / General Engine
04-27-2024, 10:53 AM
Replies: 14
Views: 526
Posted By skinny z

Re: Vortec vs Promaxx vs AFR enforcer vs Jegs aluminum

With all due respect, you can't compare port volumes between a Gen 1 SBC and an LS. LS ports are longer and thus have a greater volume. Valve angles are also different and that has an impact on how...
Forum: Tech / General Engine
04-27-2024, 10:31 AM
Replies: 4
Views: 203
Posted By skinny z

Re: Pushrods went through rocker arms

What do the rest of the rocker arms look like?
Poor quality comes to mind first. So does a localized lack of oiling. Which may be indicative of a broader problem.
Now to deal with the metal that's...
Forum: TPI
04-27-2024, 10:07 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

No apologies required.
At one time, TGO had a solid reputation for tech. So much so that it's my understanding that the powers that be didn't want a chat forum that would turn it into a social club....
Forum: TPI
04-26-2024, 05:16 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

So. based on that, it raises a couple of questions.
Despite having the port CFM needed for 400+ HP, is it your understanding that the stock TPI intake won't let you get there? For the most part, 400...
Forum: TPI
04-26-2024, 01:50 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

You had mentioned DV before so I'm pretty sure I won't get flamed (like I might get elsewhere...)
I've messed around with his TM program looking for cam suggestions. One of the features, which can...
Forum: TPI
04-26-2024, 11:27 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

https://cimg1.ibsrv.net/gimg/www.thirdgen.org-vbulletin/631x485/img_7522_15eb4373c0b2395188f80a60b066088814743b4b_27edb7f90e37e52933e51fb41874c58266be089d.jpeg




I would agree if that was...
Forum: TPI
04-25-2024, 03:23 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

Thanks for the plan update.

What's your target compression ratio?

FWIW, my latest shortblock started as a 355 with a Mahle 5/64ths ring pack hypereutectic piston (5cc) at .014" down, 65.4 cc...
Forum: Carburetors
04-25-2024, 02:45 PM
Replies: 1
Views: 74
Posted By skinny z

Re: Idle Air Bleed effect on Transition duration

I've done my share of carb tuning over the years (and decades) and have good grasp on the cause and effect of the circuits involved.
But your question as to the why prompted me to dig out my tuning...
Forum: TPI
04-25-2024, 11:10 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

Seeing as the ASM runners are on the way and earlier in the thread there was a TPIS base, is that the plan along with the Dart heads?
As for the cam...



That would be an interesting result to...
Forum: TPI
04-24-2024, 04:18 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

With all due respect to all TGO members, I think the majority are owners and not necessarily builders / testers. There are many notable exceptions (and I don't need to name them) but it's an...
Forum: TPI
04-24-2024, 10:04 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

Your opinion and Charlie's results give me hope my own heads will do the job. Very similar in design to the Darts. Small port (advertised as 170cc), 2.02/1.60, 64 cc (now at 65.4) and like yours, a...
Forum: TPI
04-23-2024, 01:03 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

Is there a cross section available at the manifold/head interface as seen from the side? Seems to me I've come across it.
I ask because I'm wondering if it's possible to raise that interface...
Forum: Exhaust
04-23-2024, 09:16 AM
Replies: 8
Views: 313
Posted By skinny z

Re: American Racing Headers

Why short tubes? Packaging?
Forum: LTX and LSX
04-22-2024, 10:24 PM
Replies: 5
Views: 732
Posted By skinny z

Re: Darin Morgan talks about air and fuel flow

I had another look at these (or most of it anyway). Since the first time I watched them to today, I've studied more on port design and have a better understanding on things like velocity, average and...
Forum: TPI
04-22-2024, 08:07 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

Already there Rob. This ought to be good!
Forum: LTX and LSX
04-22-2024, 06:10 PM
Replies: 11
Views: 428
Posted By skinny z

Re: AFR LS3 Enforcer head

Stock LS3 heads. Stock with a better valve job. A couple of Promaxx versions.


https://www.youtube.com/watch?v=JfTZb6Ob4Dc


And somewhere, he takes the stock 823 casting and shows the...
Forum: LTX and LSX
04-22-2024, 06:04 PM
Replies: 11
Views: 428
Posted By skinny z

Re: AFR LS3 Enforcer head

Speed-Talk has some pretty savvy individuals. Many of whom are motorsports professionals in their own right.
That said, it's more DV's older tech that gets slammed. Go to ST and mention the "128...
Forum: LTX and LSX
04-22-2024, 12:12 PM
Replies: 11
Views: 428
Posted By skinny z

Re: AFR LS3 Enforcer head

I've followed Vizard for a couple of decades (or more). I think I have a half dozen of his books.
In that time, there was a lot of engine theory absorbed. Some of it controversial. For a guy that...
Forum: LTX and LSX
04-22-2024, 12:10 PM
Replies: 11
Views: 428
Posted By skinny z

Re: AFR LS3 Enforcer head

Here's Weingartner's look at them.

https://www.youtube.com/watch?v=RI9gKJKd6FA&t=175s
Forum: TPI
04-22-2024, 09:21 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

On a similar note, I came across this when looking for Speier's TPI CAI modifications.

https://www.thirdgen.org/forums/tpi/770222-tpi-porting.html
Forum: Exhaust
04-21-2024, 06:26 PM
Replies: 8
Views: 313
Posted By skinny z

Re: American Racing Headers

.
Forum: TPI
04-20-2024, 12:13 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

Iron headed here sort of by default.
In my latest hotrodding renaissance which started 25 years ago, Vortecs were the hot ticket for decent street performance on the cheap. Once I was ready to move...
Forum: Members Camaros
04-19-2024, 12:12 PM
Replies: 236
Views: 8,303
Posted By skinny z

Re: Morrison Cook #98 SCCA Escort World Champion 88 Iroc

.
I was going to ask which version those heads but I see they're the 180cc offering.
Looking forward to the engine build.
There's another member here that's going all in on developing the TPI...
Forum: Aftermarket Vendor Review
04-18-2024, 09:09 PM
Replies: 14
Views: 488
Posted By skinny z

Re: TMI Products: New 3rd Gen Interior Parts

Let's hope their website gets updated soon.
Forum: Tech / General Engine
04-18-2024, 06:01 PM
Replies: 102
Views: 2,850
Posted By skinny z

Re: Whats respectable street performance in 2024?

Now, my question is: regardless of the drivers age, is that really a 9 second car?
What's it weigh? I'll get out my old Moroso slide rule calculator and have a stab at it.
:driving:
But I've no...
Forum: TPI
04-18-2024, 02:19 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

I'll certainly agree that modelling an engine can have a whole different approach if there's a live specimen to base off of.

That this thread is more or less third gen specific makes it even...
Forum: TPI
04-18-2024, 01:37 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

DV's Torque Master is about cam selection. So in that regard it's not a simulation tool.
You can manipulate some of the data points to get it's results to correlate with a real world example though....
Forum: Tech / General Engine
04-18-2024, 01:04 PM
Replies: 102
Views: 2,850
Posted By skinny z

Re: Whats respectable street performance in 2024?

I only chose NA as the forced induction side is just too extreme. Some of it is incomprehensible actually.
FI or carbed wouldn't matter to me. But I'm NA all the way seeing as the likelihood of my...
Forum: TPI
04-18-2024, 12:54 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

I like Erland's input at ST. He's brought the wave tuning into the picture with his comments on 2nd or 3rd reflections in the TPI intake.
That PipeMax sheet you posted might be an interesting point...
Forum: Aftermarket Vendor Review
04-18-2024, 12:50 PM
Replies: 14
Views: 488
Posted By skinny z

Re: TMI Products: New 3rd Gen Interior Parts

I still don't see any 3rd gen specific page. The drop down menu stops at 1981.
Forum: Tech / General Engine
04-18-2024, 12:48 PM
Replies: 102
Views: 2,850
Posted By skinny z

Re: Whats respectable street performance in 2024?

Just some random internet list. I left out what wasn't a North American deal.
This is a naturally aspirated list by the way. Is the ZR1 NA? I thought it was supercharged. I thought too that all of...
Forum: Tech / General Engine
04-18-2024, 12:10 PM
Replies: 102
Views: 2,850
Posted By skinny z

Re: Whats respectable street performance in 2024?

Well stated Matt.

Here's a question to all.
What's the most powerful new production NA car available to day? In terms of advertised horsepower rather than track performance.

EDIT: From an...
Forum: TPI
04-18-2024, 11:38 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

Welcome to TGO Mr. S.
I, for one, am looking forward to your contributions!
Forum: TPI
04-18-2024, 11:02 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

Look though at where the HP peak is. Regardless of the induction, it's predicting peak at 5300! And at the RPM, estimated minimum port flow is 219 CFM. IIRC, isn't that more or less what you've...
Forum: TPI
04-18-2024, 10:45 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

That's the information I was looking for.
For shites and giggles, I ran that length through DV's Torque Master. Engine is modeled after my own (similar CID, more CFM than the Darts, lowered the CR...
Forum: TPI
04-17-2024, 04:28 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

There's also this.
Forum: TPI
04-17-2024, 04:26 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

You know, I've danced around the subject but haven't found a response to my inquiry.
Some of my insight: We're all aware, or should be anyway, how a tuned length open collector will enhance...
Forum: Tech / General Engine
04-17-2024, 04:12 PM
Replies: 102
Views: 2,850
Posted By skinny z

Re: Whats respectable street performance in 2024?

30 minutes? I've done several 16 hour stints back to back crossing the country in more than one of my 3rd gens. I find the car fits like a glove, has a comfortable seating position and whether it's...
Forum: Tech / General Engine
04-17-2024, 12:54 PM
Replies: 102
Views: 2,850
Posted By skinny z

Re: Whats respectable street performance in 2024?

I'm in total agreement with that but in a lot of cases, the majority wins. Few racers. Many residents.
My local track is 20 minutes from my front door. NHRA certified and it's on the international...
Forum: TPI
04-17-2024, 12:47 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

I too have been to Chad's website more than once although I hadn't realized the "Cylinder Head Math" tab until Rob's thread brought it to the fore.
I spent a good chunk of my afternoon noodling...
Forum: Tech / General Engine
04-17-2024, 10:43 AM
Replies: 102
Views: 2,850
Posted By skinny z

Re: Whats respectable street performance in 2024?

Although the context is street performance, how would/do any of those aforementioned respectable cars perform at the dragstrip?
I've seen plenty of Teslas racing, but I can't say I recall a minivan...
Forum: Aftermarket Vendor Review
04-17-2024, 10:33 AM
Replies: 14
Views: 488
Posted By skinny z

TMI Products: New 3rd Gen Interior Parts

This latest venture into 3rd gen restoration was brought to my attention through Motor Trend / Hot Rod.com

https://www.motortrend.com/how-to/tmi-products-third-gen-camaro-interior-news/

It's so...
Forum: TPI
04-17-2024, 09:54 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

So, in a nutshell, is what you're saying that Hall's 350 making power to 6k is the result of a larger CSA? 2.05" vs 1.905" vs 1.810".
And by CSA what's really meant is the pushrod pinch which is the...
Forum: Tech / General Engine
04-14-2024, 06:07 PM
Replies: 102
Views: 2,850
Posted By skinny z

Re: Whats respectable street performance in 2024?

Hmm. You'd have to cite some examples for that one.
In general, I see the crate engine world as a mishmash at best. If you narrow it down to one manufacturer, or more specifically, GM, then I don't...
Forum: TPI
04-14-2024, 05:44 PM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

You know MrIROBZ , I don't find TGO to be that bad. Maybe my subject matter is more the mainstream. But to be innovative is all part of the hobby. The racing, or go faster industry really, is all...
Forum: TPI
04-14-2024, 10:15 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

I know what you mean. Speed-Talk is often worse. I've been called out and made fun of. What I did in reciprocation was to bite their collective heads off. Then I learned who the antagonists were, who...
Forum: Tech / General Engine
04-14-2024, 10:02 AM
Replies: 102
Views: 2,850
Posted By skinny z

Re: Whats respectable street performance in 2024?

Whatever the outcome of this thread or that thread, I'll continue to work on, modify, race and drive my Camaro.
It's quite possible to do all of the above.
Respectable? I think so. King of the...
Forum: TPI
04-14-2024, 09:43 AM
Replies: 230
Views: 5,842
Posted By skinny z

Re: My custom ported H/C/I L98 refresh thread

There was a problem? I thought it was moving along quite well. I can't say there was any argument from my side.
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