JUST too much power!!!! blew UP my driveshaft !!!
#1
Rotary Enthusiast
Thread Starter
JUST too much power!!!! blew UP my driveshaft !!!
Guys I don't know about the 150hp rule anymore...
I did it, I just felt for the first time enough power out of my car to able to say DAMN!!!!
I started playing with my weber on thursday and I ended up changing the venturis from the 35 which were in from stock...to a 38mm
my combo is:
38mm chokes
145 mains
170 air correctors
F20 emulsion <--weird came with carb
4.5 aux venturis
this on a 45DCOE with lake city sidedraft intake
I also upped the fuel pressure to 4 psi
THe car ran like a bat out of hell, and I ended blowing my driveshaft last night on some test. Power is almost uncontrollable from 5k to 8k on a STOCK PORT 12A.
I already finished porting an extended port 12A which I plan to run with the same 45 although with 40mm chokes. I care less about having a small carb for it since I figured...choke size is important.
Have fun I know I'm having it.
I did it, I just felt for the first time enough power out of my car to able to say DAMN!!!!
I started playing with my weber on thursday and I ended up changing the venturis from the 35 which were in from stock...to a 38mm
my combo is:
38mm chokes
145 mains
170 air correctors
F20 emulsion <--weird came with carb
4.5 aux venturis
this on a 45DCOE with lake city sidedraft intake
I also upped the fuel pressure to 4 psi
THe car ran like a bat out of hell, and I ended blowing my driveshaft last night on some test. Power is almost uncontrollable from 5k to 8k on a STOCK PORT 12A.
I already finished porting an extended port 12A which I plan to run with the same 45 although with 40mm chokes. I care less about having a small carb for it since I figured...choke size is important.
Have fun I know I'm having it.
#3
standard combustion
Join Date: Dec 2001
Location: Twin Cities Minnesota
Posts: 1,374
Likes: 0
Received 0 Likes
on
0 Posts
Wow, thats pretty cool. I wonder how much a lake cities manifold helps over a wrap around one for the sidedrafts. I'm sure its worth while and is partially responsibable for you interesting results.
BTW, how much is a lake cities manifold?
BTW, how much is a lake cities manifold?
#4
r71's daddy
Join Date: Feb 2001
Location: Atlanta, GA
Posts: 935
Likes: 0
Received 0 Likes
on
0 Posts
Re: JUST too much power!!!! blew UP my driveshaft !!!
Originally posted by mperformance
Power is almost uncontrollable from 5k to 8k on a STOCK PORT 12A.
Power is almost uncontrollable from 5k to 8k on a STOCK PORT 12A.
Glad you had fun though. :-)
I have a 13B, but 12A's are a blast to drive.
#6
Plastic Jedi
Join Date: Sep 2002
Location: Kentwood, Michigan
Posts: 583
Likes: 0
Received 0 Likes
on
0 Posts
Yeah, that's the ol' grain of salt - driveshafts and u-joints do get old and wear.
But I'd like to know more about this Lake City manifold... think I'll search.
But I'd like to know more about this Lake City manifold... think I'll search.
#7
Plastic Jedi
Join Date: Sep 2002
Location: Kentwood, Michigan
Posts: 583
Likes: 0
Received 0 Likes
on
0 Posts
Nice - but what my search did not reveal:
1) Is Lake City a still-functioning company with a website, or just used parts floating around?
2) What's the cost of the manifold?
3) Are those specific carbs still in production? How much?
4)mperformance, how's the low-end driveability?
1) Is Lake City a still-functioning company with a website, or just used parts floating around?
2) What's the cost of the manifold?
3) Are those specific carbs still in production? How much?
4)mperformance, how's the low-end driveability?
Last edited by JEC-31; 10-29-02 at 12:08 PM.
Trending Topics
#8
Senior Member
Join Date: Jun 2002
Location: Wayward Hayward
Posts: 735
Likes: 0
Received 0 Likes
on
0 Posts
So how much does a really good shaft cost for say a 200-300HP car 12a?
I still think carbon fiber shaft would be interesting... WOuld a shaft from an auto FD fit in a 1st gen easily?
I still think carbon fiber shaft would be interesting... WOuld a shaft from an auto FD fit in a 1st gen easily?
#9
Senior Member
Join Date: Jul 2001
Location: Winnipeg,Manitoba
Posts: 553
Likes: 0
Received 0 Likes
on
0 Posts
I don't think it'd be easy. Both ends would have to be switched and the overall length is probably different. A custom aluminum shaft would be good. Should run around 300$
#10
Off riding sportbikes!
Join Date: Aug 2002
Location: Vancouver Wa
Posts: 1,154
Likes: 0
Received 0 Likes
on
0 Posts
I ran into a company in the back of a Motor trend Magazine that did custom axels and drive shafts. \
Weighte like 35% less than stock and costed around $400. the guy said it would handle up to 450 horsepower.
If you want I can look up the company, and get any info I can.
Weighte like 35% less than stock and costed around $400. the guy said it would handle up to 450 horsepower.
If you want I can look up the company, and get any info I can.
#13
Rotary Enthusiast
Thread Starter
No internet at home DAMN took me a while to get back...got the intake from ebay (NEW OLD STOCK)....great deal guys.
About the driveshaft yeap it was shot...but still the car is running awesome. About pictures, I have posted several. Do a search on lake city first impression.
I have driven plenty of turbo cars and cars with over 400hp the cool deal is that as you guys know the 12as have that bumpity bump ride when shifting, like baaaaaang there goes third it's like annoingly fun to shift anyhow I'm just happy the car is running great.
About the 45 being small.... I repeat webers have the advantage of being able to be enlarged by changing the chokes...I have custom made some 40s (chokes) for the streetport and I might be able to pull a 42s later on...
About the driveshaft yeap it was shot...but still the car is running awesome. About pictures, I have posted several. Do a search on lake city first impression.
I have driven plenty of turbo cars and cars with over 400hp the cool deal is that as you guys know the 12as have that bumpity bump ride when shifting, like baaaaaang there goes third it's like annoingly fun to shift anyhow I'm just happy the car is running great.
About the 45 being small.... I repeat webers have the advantage of being able to be enlarged by changing the chokes...I have custom made some 40s (chokes) for the streetport and I might be able to pull a 42s later on...
#14
Hunting Skylines
Join Date: Apr 2001
Location: Brisbane, Queensland, Australia.
Posts: 3,431
Likes: 0
Received 2 Likes
on
2 Posts
Originally posted by mperformance
About the 45 being small.... I repeat webers have the advantage of being able to be enlarged by changing the chokes...I have custom made some 40s (chokes) for the streetport and I might be able to pull a 42s later on...
About the 45 being small.... I repeat webers have the advantage of being able to be enlarged by changing the chokes...I have custom made some 40s (chokes) for the streetport and I might be able to pull a 42s later on...
Last edited by REVHED; 10-30-02 at 03:25 PM.
Thread
Thread Starter
Forum
Replies
Last Post