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Old 02-01-2006, 01:25 AM   #1
New_CoMeR88
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Arrow Q for WALLY

Hey Wally i heard that your the man to ask about an 81 datsun 280z that id like to do a couple things to. HyundaGuy suggested you. Well heres the thing.. I dont think its the quickest car n id like to do it up a lil bit. keep it as a sleeper n not blow more than 2g on the car. it has 76k on the engine n its a 5spd stick shift (of course)... i wanted to put a turbo on it.. ive heard jsut about everyone's opinion on it tho. Wat would i need to do.. i Live in Florida , USA... would it be hard to find n such..... i want it set up to beat my friends hyundai tiburon gt 2.7 v6 he has bolt on exhaust n a cai. plus id like to have some braggin rites for the school parkin lot.. so get back at me wally...... ~ MAtt
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Old 02-01-2006, 01:32 AM   #2
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Or you could PM him ...Don't really know too much on Datsuns, but they're pretty rare around where I live...
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Old 02-01-2006, 01:49 AM   #3
GreekWarrior
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Wally's an australian, he doesn't know anything.
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Old 02-01-2006, 02:00 AM   #4
theman352001
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Quote:
Originally Posted by GreekWarrior
Wally's an australian, he doesn't know anything.
He'll at least know how to drink. Down the hatch there Wally.

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Old 02-01-2006, 08:20 PM   #5
99integra
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Woo hoo go Floridians!
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Old 02-01-2006, 08:27 PM   #6
theman352001
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Steven are you still wacking your bell? You'll go blind you know if you keep that up.

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Old 02-01-2006, 09:59 PM   #7
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Originally Posted by theman352001
Steven are you still wacking your bell? You'll go blind you know if you keep that up.

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Old 02-02-2006, 12:20 AM   #8
Wally
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L28 engine? Everyone has there own recipes, but.......

$2k isn't going to buy you a lot of parts and labour, so you might consider:

ringing Ted Stanwood of engnbldr.com for some 1.73"/1.49" valves;
higher rate springs;
port and reseat the head;
electronic dizzy;
a new G2 spec cam grind ; for student use I'd suggest a 70°in/72°ex 8.25mm lift spec; #1
adjustable cam sprocket;
triple DCOE 45 sidedraught webers, with 40mm chokes;
try to pipe an intake manifold to the front of the car if you can.
extractors (e.g. 24" valve to collector primaries).

If you can be guaranteed a supply of decent octane fuel, you might consider raising the compression and bores sizes.

This should give you an engine approaching rally spec, and a pretty cool sounding unit.

Putting a turbo on can be a bit daunting and will require suitable carbies. The cam should probably be kept around 62°. Don't port it too much as it will tend to flatten out the torque curve and not give you that peaky power boy racers desire. For street I'd keep the exhaust side AR to around the 50's or 60's for low end torque, rather than going for high end. If you want to go turbo seriously consider a turbo engine or fuel injecting it and fitting an aftermarket ECU.



#1 there are several works cams ranging from 68° to 76°. Obviously the bigger advertised duration (e.g. 4 x 76° = 304°) the more lopey, less vacuum and more fuel is used.
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Last edited by Wally : 02-02-2006 at 12:46 AM.
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