GTS346

iTrader: (1)

My 01 LS1 engine is currently on engine dyno, its had a standard rebuild under warranty.

Currently with stock engine, headers and edit its at 370HP at flywheel thru twin cats. Valves floating high up so its in the middle of getting springs, retainers and cams changed.

I have the option of either getting a brand new Comp 212/218 0.558/0.563" on a 115LSA or a like new Comp 220/220 0.564/0.564" on a 113LSA with 4 degrees advance built in.

Either way I am going to use a 3500rpm converter and don't really need to rev past 6,400rpm.

My heart is telling me go the 220, is 420hp at flywheel achievable with this cam? the 212/218 they tell me should reel off 400hp easy but 420hp is what I really want.

Help me decide, only have 1 day to make final decision.

DD966

iTrader: (3)

Go with the 220. RWHP is only going to be about 5 more than the 212/218. I doubt that either cam will give you 400 at the flywheel, but the 220 will come close, and it will be very streetable.

PREDATOR-Z

Ditto, yeah 220

GTS346

iTrader: (1)

Should of mentioned, also has LS6 manifold and injectors if that makes a difference.

MAFLESS tune

About 2 weeks back everyone was telling me I would get over 400hp with LS6 camshaft now with a 220 I can't even get 400?

Would the 220 have good street manners?
Should I get it installed straight up, or 4 degrees ret/adv. ?

P Mack

iTrader: (6)

Get the 220, my 222 has great street manners. With a mafless tune it might drive bad until you update your ve table so just get your tune redone soon.

GTS346

iTrader: (1)

It's getting tuned on the engine dyno tomorow night once the camshaft is installed.

What sort of power did you make with your 222?

CHRISPY

The 220 should make 400hp on the engine dyno fairly easily with good tuning...

GTS346

iTrader: (1)

What would be the difference between the 212/218 and the 220?
5, 10, 15hp?

What would have better midrange?

FASTONE

You should be close to 400 fwhp with a stock cam without the cats,are you using a electric waterpump on the dyno or do you have all the accesories?A stock ls1 should dyno about 425 or so with headers,which heads do you have?The 220 should put you at close to 450 fwhp,really!!

02RedHawk

iTrader: (17)

Stock LS1 with headers, engine-dyno at 425? NO WAY.

GTS346

iTrader: (1)

I wish it was that easy.
The engine on the dyno is setup like it will be in the car, no P/S or A/C.

Made 370HP on engine dyno with valve float issues. Factory 241 LS1 heads, LS6 manifold/injectors, 1 5/8" Tri Y headers into 2 1/2" collectors into twin cats. With EDIT

BTW would this cam be identical to a TR 220?

someday

y no PS or AC?? yet ur using cats? 1 5/8ths headers r a bit small for an LS1 engine if ur trying to make max power... that cam is not identical to a TR220, y don't u just get a real TR220/114, or a TR224/114... if ur going thru the trouble to change the cam, make it something ur gonna notice a difference with...

DONAIMIAN

iTrader: (18)

Install headers too since you already have the motor out. I dont see you making 400fly without em.

GTS346

iTrader: (1)

Reason for no P/S or A/C is its a 70's car that never had P/S as an option so there is no P/S rack and pinion or steering box available unless I wish to spend huge $$ to make my own. No thanks.
Car weighs under 3,000lbs so steering shouldn't be a problem.

As for cats, I would rather lose 10hp by using cats then get a $10,000 fine per cat that isn't used. Do the math is a $20,000 fine worth it for 10hp? Not exactly cheap HP is it? I live in Australia, different EPA ruling and fines.

As for headers, I don't know what you guys class as headers over there, here in Australia we call them extractors, long 4-2-1's (Tri Y's), not 4-1's due to space limitations.

How much different would this cam actually be to a TR220? Reason is the Comp 220 is here right now and need it for the dyno tonight and a TR220 would be a 4 week wait and another $500 ontop for more dyno time, is it worth it?

I want a cam with good mid range up to around the 6,200rpm mark, don't wish to rev this thing harder then needs be.
I have a 9.5" 3700rpm stall converter which I can cruise at 2000rpm so power from 2-6,200rpm is what I want.

I don't have plans of going any bigger cam, heck I'm happy with a baby cam as traction is a huge issue in these cars when they have a factory 200hp 6cyl and I'm going for a 400HP LS1, so the more HP I have the more I'm just going to sit there watching my tyres go up in smoke. Limited to a 255 rear tyre as well

PREDATOR-Z

looking at the lifts, I would say the Comp 220 is a XE lobe, agressive ramp, it will do fine.
the TR 220 is not worth the money, nor the wait.
It will have a nice flat curve, come on a little earlier due to the advance. Should have good torque down below.

someday

u need cats on a car from the 70's?? i can't believe u guys r more strict down there then we r up here... i see ur point on a smaller cam for more midrange, but a smaller cam will also make more low end, creating more wheelspin, while a big cam will decrease the bottom end a bit, making it easier to launch...

equandt

iTrader: (2)

I have the TR220 -114. Dyno'd a very average 360 rwhp through Lt's w/ cats, no pulley and heavy 17" chrome 10 spokes. My set up peaks at 6200 rpm. Mod's in sig.

Some math:
360 rwhp / 0.85 (correction for M6 driveline loss) = 423 flywheel hp.

I'd go with the 220 cam.
Good luck.

PREDATOR-Z

WTF kind of reasonning is this???? Perhaps you take off at WOT at every stop??

GTS346

iTrader: (1)

Alright folks, this XE 220 is not fast ramps.

Made 412hp @ 6,000rpm and there "may be" 5-10hp more in the tune.
But this thing really shines in the mid range, from 3-5000rpm it makes great street torque, not crazy but enough to get my lightweight car moving.

Made over 400ft/lbs of torque.

I'll have to get a copy of the graph and post it as I have a short memory.

This was a dead stock engine just changed cam/springs/retainers. Original spark plugs leads, etc. Normal cheap engine oil, no fancy stuff. 42Hp gain from changing cams.


As for cats on 70's cars, cats became standard around 1986/7 over here if memory serves me correct although when you retro fit an engine in any car it must comply to emission laws of the date of engine manufactured.

PREDATOR-Z

Yes they are fast but not the fastest. XE is 53+ ramp rate and XE-R is 49- ramp rate.
XE=Xtreeme Energy
XE-R= Xtreeme Energy Race