gta324

Is it worth it to change my ZZ9 to a LPE 219 cam on my 383 Super rammed engine. Will I have to change the ign. curve or can I go with the same prom?



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GTA -89:383, 4-bolt,Free flow muffler,dual 3" HF cats, Edelbrock headers, Canfield heads, 1.52 RR 7/16, ZZ-9 cam, Big Mouth, AS&M LTR, !plenum, 52 TB, MSD 6AL, TPIS level V prom, Superior shift-kit and all the minor mods,looking for a SR ...
http://www.itv.se/tacs/members_cars/m279/m279.html (Swedish Trans Am Club)

TPI Guy

It is only worth it if you sell me your zz9 cam when you are done at a greatly reduced price. I will then tell you anything you want to hear.

PETE

iTrader: (1)

you probably wont see much of a difference the lpe cams are designed for an engine in which the exhaust port/valve/runner etc. are pretty efficient.tpis cams(with the excepton of the super l98)usually have a bit more duration on the exhaust side,to help scavenge every bit of exhaust out of the cylinder.

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87 trans am,gm crate 350(4 bolt mains 10to1),L98 aluminum heads,LT4 hot cam,slp runners,slp 1 5/8 headers,3in.y-pipe,edelbrock base,hi flo cat,air foil,afpr,as&m ported plenum,gutted airbox,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,160 fan switch&t-stat,tb bypass,accel supercoil,cap& rotor,slp 3in. catbcak,a/c delete.

SHE IS GONE BUT I KNOW THE GUY WILL GIVE HER A GOOD HOME.

best e/t:
3653lbs./full tank+ driver.
14.10@96.53mph 2.01 60'

Grim Reaper

Pete is correct, that a single pattern cam is better suited to an engine with an efficient exhaust. Also, a single pattern cam is better for an engine where the intake is slightly less efficient.

The SuperRam is a "tuned intake" designed around lower rpms. The single pattern cam helps the SuperRam at the higher rpms.

Conversely, the Miniram is a "non-tuned intake" with high rpm efficiencies. It doesn't need as much intake duration/lift as the SuperRam, so a dual pattern cam works better.

Go with the single pattern for your SuperRam, unless your exhaust is inefficient.

BuckeyeROC

No experience w/ the ZZ9, but I have the LPE 219 in right now w/ a SR and AFR 190's, it flat out FLIES from 4000 rpm to 5800 rpm. Not bad under 4000 rpm either.
Someone posted some dyno results from different cams awhile back, including the ZZ9 and LPE 219 on a SR'ed engine, the LPE 219 had the best numbers.

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89 IROC-SuperRammed 355 w/ AFR 190's and LPE 219/219 cam-http://www.geocities.com/buckeyeroc

gta324

OK- I feel it's time to learn about camshafts, is there a good place on the web??



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GTA -89:383, 4-bolt,Free flow muffler,dual 3" HF cats, Edelbrock headers, Canfield heads, 1.52 RR 7/16, ZZ-9 cam, Big Mouth, AS&M LTR, !plenum, 52 TB, MSD 6AL, TPIS level V prom, Superior shift-kit and all the minor mods,looking for a SR ...
http://www.itv.se/tacs/members_cars/m279/m279.html (Swedish Trans Am Club)

TPI Guy

I haven't found anything good on the web thus far. I have yet to see a dyno test where the tpi intake was kept stock, and nothing but the cam was changed. I have been undergoing the same debate. I am trying to use track times as the determining factor between cams. Although, I haven't seen a lot of guys with zz9 cams with track times.

I do hear, though, that TPIS has some significant quality control issues, like their duration @.050 is more like 208*. The specs on the camshaft are pretty good, but if you pay $375 for a cam, I'd want to be damn sure it was what they say it was. The only fast car I've seen with this cam was in the latest issue of CHP. It had ported aluminum L-98 heads. It ran in the 12's with an undisclosed MPH. For all I know, they may have ran it in denver and then corrected it into the 12's (I don't buy correction factors).

SLP has some pretty good looking cams. Try www.slponline.com . My only problem with them was their service dept or lack thereof. The guy just couldn't really give me any solid reccomendations regarding intake, heads, peak power rpm. The cams don't look too bad, but I lack confidence in their service dept. The only car I have ever seen running a good time/mph with the slp cams is a red Iroc in CHP with the licence plate "12 FLAT" I think he had the 224/230.

I don't hear bad things about Lingenfelter. I put in BuckeyeROC's 219/219, and for me, I'd want something a little smaller for a 350, for a 383, I'd say buy it. It's tested and proven to be a good cam.

I like the zz9 for the 350 you were running before, but for the cubes, go with the 219. Have you ever met the swedish bikini team? Do they like American College students?