FieroGT/4E introduction (Page 3/13)
exoticse JUN 24, 08:26 AM

quote
Originally posted by fierogt4e:

Lou Dias
Yes they will replace “normal hats” with 8 at 7inch rotor mounts and smaller OD hubs. The wilwood site is difficult to navigate but will tell you every thing you would need to know. Grab the part number search all your parts sources. Be sure to check delivery times I've seen 6 weeks or more. You my find it for a little less and no shipping.
Where do I find your Fiero race car?

Exoticse
What happened? In short “life” or perhaps “OH F***” is more like it!!!
I like your stuff I'll go back and check it out again.


My Son is working on two more videos coming soon.

The old motor going in until the new one if finished (two years). M19 trans.





I know about life and the OH F*** part,..i am going thru that right now ! My own project has been on hold for awhile. All we can do is keep plugging away till things smooth out. Best of luck.

[This message has been edited by exoticse (edited 06-24-2016).]

lou_dias JUN 25, 09:22 PM
It all started here: http://www.fiero.nl/forum/A...070315-2-072050.html

Then here until trolls showed up: http://www.fiero.nl/forum/Forum2/HTML/075502.html

Then I have a lot of racing videos on my youtube channel: https://www.youtube.com/user/loudfiero
A general search on youtube for Seekonk Speedway Fiero will turn up a lot more.
fierogt4e JUN 27, 12:34 AM
Here is the next little video.


------------------
Sincerely
George

[This message has been edited by fierogt4e (edited 06-29-2016).]

ericjon262 JUN 27, 08:07 AM

quote
Originally posted by fierogt4e:
I believe the 3900 rams horn style was quickly discontinued do to poor performance in favor of the 3500 open plenum type manifold. (no variable plenum) However they have smallish throats also, good for a naturally aspirated engine with only 280 HP max.



I see you cut the neck off of the intake, what are you doing with it? I cut the net out of my LX9 3500 intake and welded in a 3" diameter pipe.









finished product:



this picture shows how GM attempted to improve air distribution in the LX9's open plenum, see the two broken walls, the come from the throttle body and send air back towards the cylinders furthest from the TB. on the gen 4 60v6, the big "V" notch far away from TB does it by eliminating dead space. I thought about doing the same thing to my intake when I put the neck in.

------------------
"I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."

"The day I tried to live, I stole a thousand beggars' change and gave it to the rich."
http://www.fiero.nl/forum/Forum2/HTML/119122.html

fierogt4e JUN 27, 09:49 PM
ericjon262
I love seeing your work, and the two broken walls, the airs path back to cyl. 5 and 6 (closest to TB) is a long and winding trail.

Its been hard to get rock solid hot rodding info on this engine. I would like to push the NA power limits of this motor “Hard” but do it on a very tight budget.

I think an 80mm throttle body will be needed for the motor I'm planning.
Hint; I have titanium LS valves. 70% off!

The tube I have is 3.750 ID. however it may be to big so I haven't moved forward with it. (3.250 ID maybe rite). Your info may be just in time. I've been puzzling over how to remove that inner part of the tube. My plenum has the big “V”. I will keep the top intact and mill it all away from the bottom and… um...lets see...hm.

I wish I could see smoke flow thru a clear top plenum and reel data on a powerful engine

titanium LS valves


------------------
Sincerely
George

fierogt4e JUN 27, 11:48 PM
I've only been doing things to the bolt on parts of the engine so far. The coolant crossover is striped of every thing not part of the coolant. Not much of the timing cover is left ether. Pump cut off, coolant lines milled away, cam phaser and housing gone. A removable cover will cover the cam sprocket. Threaded for hose nipple to the remote coolant pump are in place.
Not even similar looking.



I have some internal parts I have found at sites that deal in used NASCAR parts and the like, that I intend to use. I was hoping to limit the time the engine was apart by getting parts collected first . Ya dumb I know. But I have lost faith in some of the info I mined with much effort from forums. Even when two or more claim the same thing. so Sunday I will take it all apart and check every thing my self. Every thing. And restart.

First is the block, after a hot tanking at my sons work it will come to mine so I can go over it with a CMM. (coordinate measuring machine), there is conflicting info about cylinder offsets. That I need to settle to my satisfaction!

If both cyl. Are moved away from the cam then the engine is a 63 degree V6 and should be an odd fire engine. 126, 114, 126, 114. Or are the crank throws offset to correct it like a Buick but much less. The crank grinder will need to know and so will I. However I have seen no mention of odd fire or crank offsets,

Anyone???


------------------
Sincerely
George

[This message has been edited by fierogt4e (edited 06-28-2016).]

ericjon262 JUN 28, 12:38 AM
George, I've given lots of thought to your question of the bore offset, and I wish I could give you a straight answer, but I don't know. it's possible that the bores are still at 60* but just offset to the crank, but that would be really odd. I'm looking forward to seeing more of this build, but the looks of things you are ditching the vvt setup, is that so?

Thanks-

Eric.
fierogt4e JUN 28, 02:07 AM

My intention is to use a solid roller lifter and cam. So VVT is out. As is the plenum with a door.

You will not want to drive it in a city.
lou_dias JUN 28, 09:11 AM
the new 99 mm (3.9 in) bore required offsetting the bores by 1.5 mm away from the engine centerline of each bank
so yes, some are 6X degrees and others are 5X degrees

my engine rebuilder has one of these LZ4 engines for sale...I almost bought it until I noticed the cam phaser, I was mistaking it for an LX9...
for some reason, the wiki links the LX9 engine on the same page as the LZ4 and LZ9...
https://en.wikipedia.org/wiki/GM_High_Value_engine
I guess electronic throttle was enough of a change to lump them together...
dobey JUN 28, 09:32 AM

quote
Originally posted by fierogt4e:
My intention is to use a solid roller lifter and cam. So VVT is out. As is the plenum with a door.

You will not want to drive it in a city.



I'm kind of afraid to ask what the cam specs you're planning to use are. Are you trying to spin the thing to 10K RPM?

You're talking about getting peak N/A power, but with a budget, and then go on to talk about custom grind crank and solid roller valvetrain. I'm a bit confused.