I am about to get some mods for my car because I want to knock down about 1.5 sec in the 0-60 and also my ¼ mile .... rightnow my times are 7 sec 0-60 and 15.4 …
I was planing on getting the DynoMax Ultra Flo Cat system as well as headers, TPIS Airfoil, K&N airfilters and a new set of spark plugs…. I´m also doing a tune up and will exchange the stock plug wires to Accel 8.8s
At the moment it’s a complete stock convertible with 305 TPI auto ….2.73 gears…..
Do you think that I could hit 5.5s and mid – high 13s with just those mods ?? what else would I need ?
Thanks in advance !!

-Alex

 

bwahahahahaha, mid 13s in a 305 convertible w/ headers, cat back and plug wires...bwahahahahahahahahahahaha. And not only that it's a peanut cam car too...bwagagagagaahahahaha

Sorry that was mean i guess, but man i hope you weren't serious. Here is a good list of mods, you'll need most of 'em to get into the 13s, prolly about all of 'em to get consistent mid 13s.

-headers and full exhaust (mandatory)
-port the plenum (mandatory)
-gears (also absolutely essential)
-cam (absolutely essential if you even want to run better than high 14s.)

done right, these alone might get you close/into high 13s

-PROM tuning (a really good idea)
-AFPR (for at the track tuning)
-port the intake base (a good idea)
-heads (either well ported stockers, AL L98s or WP 305 torquers, not essential but will be needed to get much past high 13s)
-converter (not a bad idea)

These options can still be done rather cheaply and will definitely get you well into the 13s (again assuming you know what you are doing)

Airfoil does not count for anything. KNs and plug wires are just general maintenance, they are not going to make you faster. They're not a bad idea, on the contrary, keeping your basics in perfect conditon is the only way to know you are getting everything you should be.
It's not that it's hard to get where you want to be, but it will take more than just exhaust

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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.8 @ 93.1
Stock except ported plenum and dual cats
-=ICON Motorsports=-

- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die

 

-->Insert "Get a 350" Comment Here<--

Beyond that, a converter and gears are the two biggest things that will help. Full exhaust and a ported intake if you can't use a carb

Cam and heads are, as Ed said, the way to go from high to mid/low 13s. Check the power adder forum to see what guys run with a stock engine and a supercharger or nitrous.

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

-=ICON Motorsports=-

 

a couple JATO rockets would work too.


James

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1985 Z-28, 350 TPI, T-Tops, edelbrock 6085 heads, ZZ4 cam, accel base/runners & 24 lb/hr inj., ported plenum, everything gasket matched, crane AFPR, SLP 1 5/8 headers, single 3" flowmaster catback, 3" Catco cat, modified tranny, 165 ECM & ARAP code, MSD 6AL/wires, edelbrock STB, Spohn SFC/LCA/PR, GW "wonderbar"

 

dood! When my uncle was in the air force he knew a guy who put one of those on the back of his 66 impala. They were stationed at like that area 51 place, and he stole it from where they have the big planes to move the UFOs.
Anyhow, he went out in the desert and got that thing going, then hit the go-baby-go button and the f ucker ended up taking off straight into the side of a mountainlike 12 miles away. They found skids/pieces of tire/rim from where he tried to stop before the road turned, and after that, BLAM, 400+ mph (FAA investigation estimate, it was rocket powered and airborn after all, eh?)into the side of a cliff.

 

Heeeeey....that sounds like a Darwin award winner I remember. Why didn't he just shove it straight up his a$$ for a weight savings ?

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1990 IROC 350
Mods: Too busy trying to make it run right to mod it.
Airfoil, Dynomax cat-back, MSD coil, 180 t-stat, Bald Eagle tires,
Hypertech fan switch, Accel 23# injectors, Holley module, ported plenum,
Ported Daytona Yellow stock base, Moroso valve covers, other stuff,
Streetdampr, Ruger P95DC, hot wife, new oil filter, !cats, !TBC, !AIR.
18.0 @ 85MPH since I'm one big-a$$ MF
"It's better to have and not need than to need and not have."

 

U should get SFC's for that car no matter what u do.

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89 RS

STILL Looking For:
An 87 IROC-Z28 350 TPI

 

88IrocConvertible, check out my site for mods to my IROC & results. My best run was mid 14s but my IROC is heavy at 3,700lbs.

If you don't have a posi, get the 3.42 posi rear for some real help and it has that dam '86 "peanut" cam.

I too think that you will need heads & maybe cam to get mid 13s. Check out the TF Al heads. At least you have a roller cam with more lift than I and your 700R/4 is far superior to mine.

BTW, I'm looking for an base intake mod by Madmax that I hear netted him 30-40HP.


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1986 IROCZ-28 Site
Best Times:
60'=1.92sec, 1/4mi=14.42sec @93.99mph in 65deg temp

 

Ummm NO... cutting out the Krispy Kream doughnuts and his fat *** losing a few lbs is how he made up the time!

A cam does no good unless you have heads, intake, and exhaust to move the air...


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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

-=ICON Motorsports=-

 

Ed and his internet myths......

I fell for it also about 4-5 years ago.

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86 T/A 5.0 A4 & 2.77 gear
15.62 @ 86 mph
93 Civic 1.6L
13.5 @ 100 mph

 

Okay, I guess I realized that I will have to mod much more to shave down 1 sec than I thought. :-)

As for changing the gears…. I currently have 2.73 posi… let´s say I want to get in richmond 3.42s, would it be a direct bolt in or would I have to switch the carrier too ?

I also think it would be best if I throw my cam out too…. Anybody know what would work best for me ?……. is a cam really useless if I don´t switch to other heads ?….

Thanks for your help…

-Alex

 

Richmond makes a set of 3.42s that will work on a 2 series carrier. It's not a direct bolt-in in terms of there is set-up/shimming involved with getting it all set right in there.
And i'm going to firmly disagree w/ biochem about the cam. There is not a peanut cam in existence that does not deserve to be swapped, especially if you ever hope to run more than 90-91mph. You can't go too nuts on the cam w/o significant improvements in intake/heads, but anything will work better than a peanut cam.