Well the new owner got the new block in and got it tuned over this week. He g-teched it with 400 miles on the engine... Now before i post the times and get flamed mind you i WITNESSED the run and ran it once myself and got very simular results.....


0 to 60 ----- 6.4 best of 6.2
1/4 14.86 90mph W/O NOS
1/4 (WITH NOS 75 shot) 13.98 at 97mph

All on a 3.1L he had the car on a chassis dyno when the chip was tuned. I will see if i can get a copy of the dyno sheet. All in all thats about 200RWH and 260ish RWH.

I know i spent about 3K into the parts before i sold it and i am sure he has another grand into it... Goes to show you what a V6 can do when motivated!

 

Nice! This is your old Firebird? And a 3.1? Please, let us know some details of exactly what was done. I'm very impressed.

-Reno

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'88 Firebird LB8
"Cerberus"
http://www.angelfire.com/il/Firebird28/index.html

 

yes, please fill us in on the details. in case you guys didn't see it, here are the parts needed to build a N/A 245 hp 3.4L engine:

Aluminum Bow-Tie block, bored to 92 mm (3.4L)

Erson solid tappet camshaft with 88 deg. overlap / .562" lift (#F302F306); another source reports that a Crower flat tappet camshaft (X-8334) with .459" lift intake, .483" lift exhaust, and 30 degrees overlap was used

Isky solid lifters (#202H)

Isky 110-pound valve springs (#6005)

Melling oil pump (#10127575), repositioned pickup

Crane roller rockers (#25752-12), modified to clear inlet manifold, valve covers

cast-iron crankshaft (Chevrolet #10078981), main bearing journals cross drilled

Corvette L98 throttle body, heating system removed

fuel injectors from 3.8L Buick Turbo engine

aluminum cast pistons, 10.5:1, flycut for .100 inch valve clearance

Fabricated 3.1L manifold; new 1 1/4 x 2 inch runners; 6.5 inch through-manifold runner length and modifications for rocker arm clearance

Ported and polished inlet and exhaust ports; valves unshrouded

Custom made stainless steel fuel rails with Aeroquip fittings

Hand-built inlet plenum, similar to L98 Corvette engine

Windage tray

Custom made rocker studs from Ryan Falconer Enterprises

Custom headers with 1 5/8" diameter, 24" length, and 31" collector

Custom built aluminum ram-air inlet boxes

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------------------
Dan
1990 3.1L RS
80 Series Flowmaster
It's fast(er than a 3 cyl metro)

 

Getting the cam details and old receipts together... will post shortly... god it is a fast car and sounds alot like a V8 upto about 3000rpm.... the engine winds VERY fast whether on NOS or not... Anyways i will post all that went into it.