Lars recurve kit?
Tech Contributor
Joined: Aug 1999
Posts: 14,384
Likes: 6,409
From: At my Bar drinking and wrenching in Lafayette Colorado
Re: Lars recurve kit? (C3Vettesrock)
C3V -
The gains you get from the kit are really dependent on how far off your current ignition curve is. If you're running a bone stock GM/Delco HEI, the advance curve is slow and short. This severely hampers performance, and you can get a noticable improvement in throttle response and off-idle torque by running the kit.
Some of the aftermarket distributors have very good curves in them, and are set up correctly. If you already have a distributor with an aggressive advance curve that will bring in the 36-degree total timing at the right rpm, you have little if anything to gain from the kit.
If I were you, I'd take an adjustable timing light to the current setup and see how much total timing (with vac advance disconnected) you're getting, and at what rpm it comes in. If you're getting less than 32 degrees total timing, and the total is coming in above 3500 rpm, you will get improvements with the kit. If your current setup is giving you 36 total advance at or about 2500-3000 rpm, the kit won't gain you much.
Drop me a note if you need any clarification on any of this or if you have any questions. Also, I think there is a product review on the kit in one of the product review sections. I just e-mailed you 3 MS Word documents with info about the kit and about its development.
[Modified by lars, 7:58 PM 3/9/2002]
The gains you get from the kit are really dependent on how far off your current ignition curve is. If you're running a bone stock GM/Delco HEI, the advance curve is slow and short. This severely hampers performance, and you can get a noticable improvement in throttle response and off-idle torque by running the kit.
Some of the aftermarket distributors have very good curves in them, and are set up correctly. If you already have a distributor with an aggressive advance curve that will bring in the 36-degree total timing at the right rpm, you have little if anything to gain from the kit.
If I were you, I'd take an adjustable timing light to the current setup and see how much total timing (with vac advance disconnected) you're getting, and at what rpm it comes in. If you're getting less than 32 degrees total timing, and the total is coming in above 3500 rpm, you will get improvements with the kit. If your current setup is giving you 36 total advance at or about 2500-3000 rpm, the kit won't gain you much.
Drop me a note if you need any clarification on any of this or if you have any questions. Also, I think there is a product review on the kit in one of the product review sections. I just e-mailed you 3 MS Word documents with info about the kit and about its development.
[Modified by lars, 7:58 PM 3/9/2002]
Thread Starter
Racer
Joined: Jul 2001
Posts: 311
Likes: 0
From: St. Amant LA
Re: Lars recurve kit? (C3Vettesrock)
Ok i hope to get my car back monday, i totally messed up my transmission last friday night, its getting rebuilt at the moment and when i get it back ill let you know how its looking...thx for the info
Melting Slicks
Joined: Dec 2001
Posts: 2,025
Likes: 1
From: Billings MT
Re: Lars recurve kit? (lars)
C3V -
The gains you get from the kit are really dependent on how far off your current ignition curve is. If you're running a bone stock GM/Delco HEI, the advance curve is slow and short. This severely hampers performance, and you can get a noticable improvement in throttle response and off-idle torque by running the kit....
The gains you get from the kit are really dependent on how far off your current ignition curve is. If you're running a bone stock GM/Delco HEI, the advance curve is slow and short. This severely hampers performance, and you can get a noticable improvement in throttle response and off-idle torque by running the kit....
Thanks :)
Instructor
Joined: Oct 2000
Posts: 111
Likes: 0
From: HOUSTON , TEXAS , USA
Re: Lars recurve kit? (C3Vettesrock)
Lars,
You state " some of the aftermarket distributors have very good curves". Can you be specific? I'm thinking of replacing mine after I finish this cam and heads installation. Thanks in advance.
You state " some of the aftermarket distributors have very good curves". Can you be specific? I'm thinking of replacing mine after I finish this cam and heads installation. Thanks in advance.
