TSP 220r too small?
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Joined: Feb 2019
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TSP 220r too small?
So car is a 2000 250k mi convertible. All stock and has been all stock. Going to be pulling/dropping the engine shortly to reseal and fix the rear main leak. Going to do all new gaskets, heads , cam and long tubes when I do it.
Question is .. I have a 220/220 .600/.600 sitting on my shelf... Is it too small to even mess with for a Ls1? I have one in my truck and love it. I really don't plan on spinning it super high and the Vette is my daily driver. I'm sure I'm leaving power on the table with a cam this small.. but truth is.. my truck will be turbo soon and my GTO is supercharged. So don't need another racecar.. lol.
I'm basically trying to convince myself to just throw this in... Someone please convince me...
Question is .. I have a 220/220 .600/.600 sitting on my shelf... Is it too small to even mess with for a Ls1? I have one in my truck and love it. I really don't plan on spinning it super high and the Vette is my daily driver. I'm sure I'm leaving power on the table with a cam this small.. but truth is.. my truck will be turbo soon and my GTO is supercharged. So don't need another racecar.. lol.
I'm basically trying to convince myself to just throw this in... Someone please convince me...
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I think that's the plan. Need to source some springs and some hardened pushrods.
Just ordered a bunch if gaskets and ****. So I can do everything at one time. Also throwing the Ls6 intake that came off my GTO on this. This car is getting so many hand me down parts its not even funny.
Just ordered a bunch if gaskets and ****. So I can do everything at one time. Also throwing the Ls6 intake that came off my GTO on this. This car is getting so many hand me down parts its not even funny.
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I recently upgraded my 01 with 799 heads, tsp 228r, and long tubes. After the tune 387whp/374wtq on a 105* day and a motor with 115k miles. The combo made more power everwhere and still drives like stock. If you have everything torn down find a set of 243 or 799 heads. I paid 325 for then and 125 at the machine shop to mill for flatness and install my springs that tsp recomeded. If you lose 10-15 hp with the 220r who cares.
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These are all good things to hear. I actually am going to be swapping my 243s on while I'm at it. I actually have a pair of 799s and 243s. The 799s needs some broken studs extracted and were off if a high mileage engine so prob won't go with them until they are gone through. The 243s came off of a car with under 20k.
So far I have most of the gaskets, heads, LS6 intake and the cam. Need to still buy some long tubes, headbolts and crank bolt, springs and hardened pushrods. I have a set of PAC 1207x , but spring pressure might be a little much for this setup. Not sure though.
So far I have most of the gaskets, heads, LS6 intake and the cam. Need to still buy some long tubes, headbolts and crank bolt, springs and hardened pushrods. I have a set of PAC 1207x , but spring pressure might be a little much for this setup. Not sure though.
Last edited by 04silvy; Aug 25, 2019 at 08:10 AM.
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Melting Slicks
Joined: Feb 2007
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From: Raleigh Suburbs
Just might be better off going with Harder, rather than softer...
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And you're probably right. They are springs for up to a 700 lift so nothing super crazy. Only downsides I could dig up was possiblity noisier drivetrain and could rob some horse power as spring pressures go up. Neither I'm really concerned about.
Also have a brand new N2O outlet kit that is going to be sitting there since my truck is going turbo. So who knows what the future holds for this thing. Lol.
Also have a brand new N2O outlet kit that is going to be sitting there since my truck is going turbo. So who knows what the future holds for this thing. Lol.
Melting Slicks
Joined: Feb 2007
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From: Raleigh Suburbs
I recently upgraded my 01 with 799 heads, tsp 228r, and long tubes. After the tune 387whp/374wtq on a 105* day and a motor with 115k miles. The combo made more power everwhere and still drives like stock. If you have everything torn down find a set of 243 or 799 heads. I paid 325 for then and 125 at the machine shop to mill for flatness and install my springs that tsp recomeded. If you lose 10-15 hp with the 220r who cares.
Check the thread:
https://www.corvetteforum.com/forums...post1600039293
With even 220/114, you're going to be hard-pressed gaining power in the lower RPM's...like for example setting AX.
Perhaps your Dynoer doesn't go through lower RPM's, for whatever reason.
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But if me.. I never stated there was a budget. And yes I'm pretty much using mostly what I have at the moment. I started out simply by asking if the 220r cam would even be worth putting in at all when I have this thing apart. Most seem to say yes it's still an improvement. 100% of the reason I'm tearing it apart is new gaskets.
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So I think I pretty well settled in
220 cam 600/600 112... Have
243 heads ... Have
Ls6 intake... Have
All new gaskets..have most.
Long tubes...need to order
Racer
Joined: Jul 2015
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From: Helotes Satx
That's honestly what I planned on doing with my truck. But since it's going turbo it my get my other set of 799s instead. Then I'll have a set to mess with. The car will prob get the clean 243s I have they have next to know miles on them so they may go on completely stock.
So I think I pretty well settled in
220 cam 600/600 112... Have
243 heads ... Have
Ls6 intake... Have
All new gaskets..have most.
Long tubes...need to order
So I think I pretty well settled in
220 cam 600/600 112... Have
243 heads ... Have
Ls6 intake... Have
All new gaskets..have most.
Long tubes...need to order
Look up lloyd Elliot. Elliot portworks!
$600 head work.
Drifting
Joined: Nov 2017
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Stock is 202/210 at 117 LSA, with about 475 lift, so I'd expect a little extra power from your 220/220.
You didn't mention the LSA but I'm guessing 112. (They also come in 110 and 114.)
And I agree with milling the heads for more compression, and porting too if you can.
And put tuning your to-do list if it's not already there.
You didn't mention the LSA but I'm guessing 112. (They also come in 110 and 114.)
And I agree with milling the heads for more compression, and porting too if you can.
And put tuning your to-do list if it's not already there.
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Stock is 202/210 at 117 LSA, with about 475 lift, so I'd expect a little extra power from your 220/220.
You didn't mention the LSA but I'm guessing 112. (They also come in 110 and 114.)
And I agree with milling the heads for more compression, and porting too if you can.
And put tuning your to-do list if it's not already there.
You didn't mention the LSA but I'm guessing 112. (They also come in 110 and 114.)
And I agree with milling the heads for more compression, and porting too if you can.
And put tuning your to-do list if it's not already there.
Is there no benefit to just slapping 243s on? I know z06s came with them factory but seems most say to mill. How much would you guys recommend? I think when I was researching most went 30 thousandths .
Also tuning is covered as I have HP tuners.. and have this car already unlocked. 👍.
Drifting
Joined: Nov 2017
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The stock 243s will flow better than the stock LS1 heads, so I'm sure there would be some benefit to the swap. Between the heads and the intake manifold you've basically turning an LS1 into an LS6. But aftermarket porting will add a bit more, and higher compression ratio will add a bit more. And both of those a lot easier to do before you bolt them down. 
Not sure about pushrod length & milling. i think you'd be milling less than the lifter travel, so you'd probably be fine, but I don't know that for sure.
Not sure about pushrod length & milling. i think you'd be milling less than the lifter travel, so you'd probably be fine, but I don't know that for sure.