I'm trying to find a good place to dyno my car around here, before I start doing anything major to it. But since I'm having a little bit of trouble, I thought I'd post here.

I have a 87 Z with the LG4. It has Hedman Headers (Medium tube I believe), new Y-Pipe, Dynomax exhaust, no cat(s) and a K & N Open Air Filter. The engine has 159000KM (Almost 100K Miles?) and runs perfect. Any HP estimates? 1/4 mile estimates? What kind of cars SHOULD I be able to beat?

Also, what times are other LG4's running? What mods?

Thanks guys

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Trevor
87 Z28 - LG4 - 305
Hedman Headers, Y-Pipe, Dynomax Exhaust, K&N Open Air Filter

[This message has been edited by Trevor K (edited July 10, 2001).]

 

la la la sig

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60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver 14.82 @ 91.1 (faster than Ed)
Reader's ride -> My Ride

Just another Hot Rod kid, or thats what they all tell me.
Livin' the Stereotype

 

At the rear wheels 140-150 HP 200-230 ft-lbs. 1/4 in 16.0 @ 85 mph. with 700R4 & 2.73 gears.

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'87 Bird 350 .060 over 700R4 + Lots more

 

ATOMonkey - Is that stock or with my mods included?

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Trevor
87 Z28 - LG4 - 305
Hedman Headers, Y-Pipe, Dynomax Exhaust, K&N Open Air Filter

 

Trevor,

Does your LG4 have the smog gear on it? Mine doesn't and I think this is kind of typical of the Canadian Camaros. If it doesn't, it should have a few more horsepower than the equivelent American LG4, say 160hp instead of 140hp.

Have you tuned up your carb and ignition, as per the instructions from Damon in the Tech section of this site? If so, you will have an even beefier LG4 with perhaps another 10 or 15hp.

Now you might have 170-175hp. Adding in the advantage your headers provide, I wouldn't be surprised if you are storming around with 200hp on tap.

1/4 mile times might be close to 16 seconds, but I wouldn't want to venture much more of a guess than that.

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1986 Camaro Sports Coupe
T-tops, power hatch, third brake light
LG4 305 V8, "Damonized" Q-Jet 4bbl, K&N filter
Crane ignition kit, TH700R4 transmission
Air, pw, pl, pb, ps
Kenwood cassette, Pioneer 6x4 component front speakers
Rockford Fosgate 6x9 Punch rear speakers
Aluminum slots and Goodyear 225x60R15 Eagle HP tires

 

That is what I would expect out of your engine with the mods that you've listed. I had done the same thing to my car before the engine swap and that is what it ran at Indianapolis. Gears will really change you 1/4 times.

Most of the same year mustangs will run low 15s or mid 15s because the 5 speed that most of them run have bigger rear gears, and their cars are smaller.

Most Hondas and such should run right with you. Any turbo cars will kill you unless the driver has no idea what is going on.

I recomend learning how to drive really well.
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'87 Bird 350 .060 over 700R4 + Lots more

[This message has been edited by ATOMonkey (edited July 11, 2001).]

 

Is that ture about the Canadian LG4s?
I hope so

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1985 305 Z28
White w/ Grey ground effects
Red interior
K&N Chrome Element and Filter
Flowmaster 80 series muffler
Aftermarket High-Flow Cat
Chrome Edelbrock Valve Covers

 

Im not from Canida or as I call it "USA's prespective realistate " But from what Ive heard from the early 70's-?87-89? there is no smog eqiptment on canadian cars/trucks and that accounts for around a 20+ hp power increase.

Trevor, your car I would estimate 180hp with stock intake and stock cam. change these items and it could be well into the low 200's. 1/4 estimates are hard to give, it varys with altitude where I am 3800+ft with a 210hp lg4 I ran 15.2@89mph. thats with no smog crap "no cat either" tricked qjet comp270H cam and some sort of performance muffler thats now gone.
SSC

 

Well, we can extend our borders and annex the USA--if you all want to get a little cosier

Yup, I'd guess somewhere around 200hp with just his minimal changes. Camaros are so light they will still be right quick through the quarter at that power.

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1986 Camaro Sports Coupe
T-tops, power hatch, third brake light
LG4 305 V8, "Damonized" Q-Jet 4bbl, K&N filter
Crane ignition kit, TH700R4 transmission
Air, pw, pl, pb, ps
Kenwood cassette, Pioneer 6x4 component front speakers
Rockford Fosgate 6x9 Punch rear speakers
Aluminum slots and Goodyear 225x60R15 Eagle HP tires

 

Sure Im for that, then I can watch Red Green more than once a week
SSC

 

Since when are camaros light? I thought they weigh around 3600 lbs.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER, NO CAT
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
2:73 GEARS
Rebuilt 700R4, with manual valve body
B&M Megashifter
Soon to be installed
3:73 Richmond Gears and 3" Exhaust
"There is nothing more addicting than speed"

 

Thanks for the estimates guys. Right now, I think I'll focus on learning how to drive the car, since it's my first RWD.

What kind of gains could I expect from just swapping the intake manifold? And what's with all the different models?

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Trevor
87 Z28 - LG4 - 305
Hedman Headers, Y-Pipe, Dynomax Exhaust, K&N Open Air Filter

 

If you're looking for a dyno shop, you could try Engine Xchange House in Edmonton, 468-2585. I think they used to have a chassis dyno when I lived in Edmonton a few years ago. If not, Davenport Racing in Calgary has a chassis dyno, 403-274-7271.

 

According to the NADA book v8 fidebird weighs 3,023 pounds, And DUTA DUTA DA camaro same year also v8 weighs 2,870 !
SSC

 

I just G-tech'd my car last night and got 16.1@87mph with 166rwhp. That's with an extra 600lbs between the 3 of us in there and no real 'pre-test mods' I should be able to easily get it into the high 15's with a few tweaks.

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1986 Camaro Z28
White w/ T-tops
Tinted Rear Window
ENGINE
305 H-code
Gasket-matched heads and intake, ported and polished
Comp Cams 224 @.050
.472 lift I/E
Dual Snorkel Air Cleaner w/ K&N filter
Accel 8.8mm wires
TRANNY
700-R4 w/custom built 3000 stall converter
tranny cooler
EXHAUST
Flowtech Headers
No cat
Dynomax muffler
STEREO
Alpine CDA-855
Kenwood 4X6's, 6X9's
MTX 4240 amp
2 Sony 12" X-Plod's
Alpine 8440 alarm
Uniden 6599 Radar Detector

Take 'er easy, and if
she's easy, take 'er twice!!!