I have not posted here in a while and thought I would give an update.

I ran this weekend in Etown and was hoping for a new best but weather was not great and due to the sound restrictions they have I had to button up the exhaust and run my <2" exhuast

Here is the breakdown of events. Track conditions were horrible.

Da was about 2400-2600 while racing all day.

Passes are in order:

60' times 1/4 mile ETs

1.52 11.3@118
1.67 11.5@118 Loss traction
1.70 11.7@119 loss traction so bad the car went sideways, left off and got back into it. What a joke!
1.52 11.3@116 This run was an elimination run. Dialed an 11.5 and this time the car hooked again. Hit the brakes so hard after zipping past the guy the ABS came on and I still broke out by .2 sec! If I would have stayed in it it would have easily been a 11.1x.

That is very exciting since in the past at nearly every track I gain a solid .3 and 3 MPH when I loose the exhaust.

I was also fortunate enough to pick up an SLP 3" mandral bent exhaust for my car that I will be able to run without loosing any power, like I am not with my spagetti exhaust these runs were made with.

Also the reason I posted was to see how the SLP 3" exhaust sounds? Does anyone have this system here. The guy I bought it off of removed the resonator and replaced it with straight pipes. It takes off about 20#, so I might just try it without it.

Does anyone have any experience with or without the resonator?

Thanks.....looking forward to hearing your comments. I think in the fall a 10sec pass will be surely within my grasp.

L8R

 

Great update!! I don't have any advice about the SLP exhaust, but I do know that it's loud on a friends very lightly modified 99Z and that's with a cat. Here's what I think about a sound restriction at a racetrack... :nono: in no particular order. Running a full exhaust is really going to be a PITA for you to break the 11.00 barrier. I guess you'll still get it, but the track and weather will have to be PERFECT. I wonder if even more stall would get you there (10's) easier and more consistently?

Maybe it's also a time to think about switching to a MR? J/k, I know a little about your opinions and personal preference about intakes from reading the vette forum all the time. Keep us updated.

 

:hail:
Ski man, I love your car. No experience with that exhaust, but you should definitely drop a couple tenths.

 

Corkvette runs a full exhaust and he run the same with the 3" exhaust as he does wide open. So I should be as good as with it it open, now with the new SLP 3".

The reason my exhaust at Etown was hurting me was its less then 2" in spots. Earlier in the year I ran it, at the track that day we pulled the car up on the trailer and dropped off the exhuast. Instantly the car picked up .3 sec and 3 mph. Held for 3 runs with those gains.

I think I will be at the 11.0x or even 10s with it when the weather gets to <90*F.

Can't wait to get it back with the roll bar installed. Corky said his car picked up some also after the bar install. Makes the car stiffer off the line. You wouldn't believe what this thing feels like. :hail:

More is to come. We are just getting started.

I know right now with one mod, and its not a power adder, in the sense of nitrous/chemical or mechanic means we could hit 10.4s all day long. But it would take about 5K to do. But I want to see in good weather that this setups as is will do.

Stay tuned we will be breaking out some new stuff!

 

Ski,
Cool, now I understand what you're saying about the exhaust setup. You're seeing temps a little higher than us too. What is that one mod anyway or is it a mystery? My guess is a 4.0" stroker crank, is that it?

 

What is it????

 

Guys,

Its in the makings. But there is a bunch to hash out. The bottom end will be exactly the same.

There will be several intake test happening in the next couple of months to see what will be best suited for the application.

I don't want to spill the beans just yet

But you know if we do it, it'll be done correct and will be a very good setup for others to follow.

Just bear with Corky and I.

 

I can stand the anticipation, just give me a little hint!!!!

 

315+ CFM, hence the reason for the different intake needed.

We need an intake that can handle 350+ CFM. Here is the lowdown on current popular intakes:

Info from my NOTEPAD
Runners (measured individually)
Stock....................203.17 cfm
ACCEL................242.02 cfm
Extrude/ACCEL...275.83 cfm
Super Ram............289.18 cfm
Intake manifold with 3/8 inch radiused intlet
.............................222.45 cfm

Stock intake manifold with runner
Stock....................198.72 cfm
ACCEL................213.52 cfm
Extrude/ACCEL....217.11 cfm
Super Ram............220.67 cfm

ACCEL Hi-Flow intake manifold with 3/8 inch
radiused inlet.........251.51 cfm

ACCEL Hi-Flow intake manifold with runner
Stock....................215.83 cfm
ACCEL................232.53 cfm
Extrude/ACCEL....243.21 cfm
Super Ram............240.24 cfm

Extrude-Honed ACCEL Hi-Flow intake
manifold with 3/8 inch radiused inlet
............................275.83 cfm

Extrude-Honed ACCEL Hi-Flow intake
manifold with ACCEL runner
............................266.94 cfm

Edelbrock Performer RPM manifold
(Stock)..................286.51 cfm

--------------------------------------------------------------------------

Here is some more:

TPI, stock base, stock runners, 48MM - 185 cfm
TPI, Accel base, large tubes, lots of porting, 52MM - 212 cfm
TPI, Accel base (cheater), large tubes, lots of porting, 52MM - 226 cfm

SR with unported Edelbrock base, 52MM - 224 cfm
SR with unported Accel base, 52MM - 233 cfm
SR with heavily massaged E base, mild port runners, 58MM - 256 cfm
SR with heavily massaged A base, mild port runners, 58MM - 259 cfm
SR with heavily massaged A base, massive work throughout - 278 cfm

stock MRII with 1204 (AFR 195) ports, 58MM - 265 cfm
stock MRII with 1206 (AFR 220) ports, 58MM - 281 cfm
MRII clean-up, 1206 ports, 58MM - 292 cfm
MRII cut, weld, port, ect, 58MM - 321 cfm
MRII (same as above with mono blade) - 322 cfm

Then we will see what the MAF can handle!

 

Wow, I guess you've done your homework...

I look forward to seeing your updates in the future...

I hope my combo does as well as your's is doing...

Good luck.

 

Going with a 32 valve head, eh?

 

Nope!

 

How about HSR flow numbers? Has anyone actually flowed one yet to add to the data?

 

BTW...nice run #'s...guess that between the dyno time and the track time, we have some proof...unless you don't believe that either is a good indication of power

Keep up the good work Ski...

 

88TPI,

Actually we have a test in the works that will problem be completed by Beach Bum on this 383/219/190AFR combo this weekend with a HSR.

I will let you all know what he posts for results.

Thus far he is having a nightmare of a time getting the bolts to line up. Sad when a manufacturer can't even get the bolt holes correct.

He has used other intakes, so its definately this casting that was bad. Last I spoke with him he was hoggin out the holes to get it to line up.

Side note: My Car's Freakin roll bar took longer than they expected, now the car won't be done till next weekend

 

Well...after getting a new HSR base shipped to me because I found out that mine is warped...I can sympathize

Hopefully it will be here tomorrow...I can't wait to hear about the results...

 

AHHH i must of missed ya!! i went the friday after i belive. It would be nie to mee ya Ski!!!

 

Yeah, I saw his post on corvetteforum...This is one test I can't wait to see the results of.

 

Reading your previous replys, I was almost positive that you would be going with the Arao 32 valve Hemi head. But then again, theyre a tad more than $4,000.

Ski, Ive been following your setup for a while now. Ive also been laughing at all the people who try to argue over the MAF issues and such... I give you alot of respect man. Your one of the very few people here who can give FACT and BACK IT UP, rather than argue about petty theories.

Ive had a 406 project in the works for some time now, and hopefully Ill come across some money to really get into it. Ive had a fully prepped and ready to go 511 block sitting on my stand for almost 2 years now soaking in wd40... funds ran low. I know its the lesser 4 bolt block, but it *should* hold what I plan to throw at it, which will not include any power adders. I will be usung MAF though. Why not? Its already in the car, and after reading your posts its QUITE obvious that a MAF can get me where I want to go. I also feel its a more accurate system over MAP, but thats another debate. Keep on keepin' us updated!

 

bigal,

Sorry we missed each other. Coming out again on the16th to race I believe.

88 WSR,

Thanks for the nice comments. Yeah I get a kick out of it. I think your makin the right choice with the MAF system. Let me know if you need anything.

 

Just admit it...you're switching to Speed Density.

 

Yeah the way some talk around here they would claim a drop from 11.1 => 10.4 with that as the only mod. But I would believe the other way around.

Talked to several guys this past weekend at Etown that did just that. Fighting their way back to same ETs after switching. I just smile, shake my head and wish them the best.

You can see it on here too if you take the time to look. :lala:

 

Sounds like 18 degree heads to me.

 

Ahhh someone is on the ball, or pretty close. Take a look at these babies:

http://www.airflowresearch.com/pages/215sbc_rr.htm

Problem is finding an intake that will match the angle/port position.

Ideas?

 

I would call Lingenfelter and ask them. If anybody knows, they will. I will be surprised if an intake exists that you can use those heads and a superram.