1979 Lesabre Sport, for NHRA Stock Eliminator?

[iraceitall]

As long as the compressor wheel diameter stays at 1.835, and the housing at 1.863, and no grinding or polishing is done.

 

[usetaboost]

Then you should be able to do factory aluminum intake, 83 headers, a GN cam, and whatever other factory goodies you can scrounge up.

 

[bison]

I've got an 83 intake

 

[usetaboost]

^there you go, there's one good part. Curious, are coatings allowed?

 

[iraceitall]

No coatings, nothing sprayed into the intake, etc.

I have to use the stock unmodified 1979 intake (casting numbers ARE checked), cam must keep stock lift (.340/.401 per NHRA) but can run any duration, must stay hydraulic flat tappet (no roller), but I can use roller rockers, but stock (1.55) ratio. I do have the GN exhaust manifolds covered though,a fellow racer had a set. Heads cannot be ported (must also be correct castings for 1979), stock valve sizes but any valve job. Pistons must be OE or NHRA approved, not allowed over a .060 overbore, nor more than 9.3:1 compression per the blueprint specs at www.nhraracer.com. It's a tight rule package no doubt, but that's what I like about it and the challenge it will present. And, they will tear you down and check...

 

[usetaboost]

how is it you can switch exhaust housings but can't swap intakes? wtf?

 

[iraceitall]

Housings don't have a casting number that they track. The small bit of latitude we get with turbos, along with them having no way to regulate the amount of boost we use, is the advantage turbo cars get. It's also my best friend since my home track is 4100ft.

If a FWD, 3200lb 4cyl turbo can run the number, why can't I?

 

[bison]

Housings don't have a casting number that they track. The small bit of latitude we get with turbos, along with them having no way to regulate the amount of boost we use, is the advantage turbo cars get. It's also my best friend since my home track is 4100ft.

If a FWD, 3200lb 4cyl turbo can run the number, why can't I?

4100 feet sucks for that tiny compressor. If that fwd 4 cyl was better setup to accept turbocharging stock then it could easily surpass a larger engine. Like having an open plenum intake setup like an LC2, blow through setup and or it's an ohc engine. These things make a huge difference when trying to get more out of less. The intake setup on the b4b cars was so restrictive it probably wouldnt matter much what head work was done or what cam is used. I'd for sure be building around s lot of cyl pressure though. I'd be right at 9.3:1 and running timing

 

[dr_frankenstein]

If a FWD, 3200lb 4cyl turbo can run the number, why can't I?

welcome to B4B, there is nuthing fast about these cars until you really kick them in the ass. Why do you think we spend most of our time all alone in here like little crack heads in a dark garage corner? the popularity has been very low until this fall and winter, when we have seen a surge of people picking these cars up. Draw thru is a hard to deal with way of making boost...... its better suited to a blower.

 

[b4black]

Here's some inspiration:

Riviera

1983 T-Type Riviera
231 carbed turbo,750 Q-Jet
T-3 stock turbo
3700lb

The car now runs in BF/S NHRA Stock Eliminator.The index is 14.95 in this class.The car has gone 13.60@102mph with 22psi of boost with c16 and good air
The motor is blueprinted to NHRA spec.I have been torn down 3 times and have been found legal.See spec in NHRA rule book.
Some of the parts...JE pistons,Lazer cam,Manley,Jesel,Stef,MSD,Meziere,Moroso, PTC,Air Lift,QA1 etc.New motor being built for next year with some new go faster parts and massaging.
Tony​

This was from the turbobuicks.com board. Tony Massari was his full name. I read the car hit the wall and has not ben run since.

 

[usetaboost]

that's bad ass for a carb'ed riv!

 

[iraceitall]

That's what I'm talking about! There's some inspiration! 14's or bust for me!

 

[charlief1]

welcome to B4B, there is nuthing fast about these cars until you really kick them in the ass. Why do you think we spend most of our time all alone in here like little crack heads in a dark garage corner?

In your case I'd think it would be more like the porn addict watching the puter.

 

[dr_frankenstein]

In your case I'd think it would be more like the porn addict watching the puter.

you may be on to something! HA!

 

[mikemcvaney]

you guys are twisted but so true

 

[tony1917]

search... muscle machines...see pictures of hot rod riviera

 

[iraceitall]

Here's some inspiration:


This was from the turbobuicks.com board. Tony Massari was his full name. I read the car hit the wall and has not ben run since.

He's a drag racing legend, if you're into older Junior Stocks, he was part of Yoo Hoo Too, with Wayne Jesel in the 60's. I am picking his brain for info...

 

[iraceitall]

I wonder if you can find modern set of impellars for the turbo that are the stock size just a better pitch

Yes I can. I am to that point. Must be 1.835 diameter. What about the 84/85 Impeller wheel? What is the difference with it, and does anybody have one? I am using an '82 housing.

I did find OE aluminum bumpers for it, and to get to race weight after my other mods had to add 50lbs of ballast to the trunk.

 

[charlief1]

Are you talking about the exducer or inducer wheel here? The hot side wheel you're stuck with but contact Reed and he might have a solution that would give you the best power.

 

[iraceitall]

Compressor, sorry. I was looking back at a post you had from page 1.