bdiroc

i was just wondering what everybody thought about this cam in a 305 .duration 288/308 - duration @.050 196/206. Valve lift with 1.5 rockers is 431/451 with a 109 degree lobe centerline. i know it is weak for a 350 but i have a 305 with peanut cam .i have 58cc alum heads,accell intake, accell runners ,1 5/8 headers.did all free mods and tci breakaway converter and 3.42 gears.i only run a 14.68 with a 1.96 60 foot at 91 mph.i figure anything has to be better than the great :lala: peanut cam :lala: i would search for info on cam but it is down .any ideas on the cam would be apprecitated . just dont reply get a 350 becuase i am getting one this fall to build just want a nice car to bracket race in this summer thanks

bigals87z28

that cam doest sound to bad... im gunna go a ZZ4.. its large for a 305.. but i plan on swapping it in to the 350 one day...

Chris89GTA

iTrader: (2)

go bigger dood... i have a buddy who put in the comp 08-302-08 its the same as the CC304 but with less lift... the specs are 210/220 w/ .480 .480 on a 112 LSA... sounded absolutely awesome in his 305 with dynomax headers and catback... put out some good #s too... can't remember exactly what it did though... you can a cam in a 305 that has up to about 215 intake duration... maybe a little more depending on your converter

palric

iTrader: (1)

Not with a 10 foot pole would I touch that cam in a 305 TPI.

The advertised duration (regardless of .050) is monstrous any idea what your vacuum is going to be like ? The LCA at 109 is way too short as well may cause alot of related problems. All this for moderate gains in lift.

Your times are already poor (no offense intended) with what is a pretty decent setup on paper. Check my sig for comparison my mods are pullies and Jacobs Ultra Team.

If you want to swap out cams go with something designed for the TPI (TPIS, LPE, SLP, etc). You should be pulling way better times on the stock chip. Are you throwing any codes ?

adious,
RP.

bigals87z28

Parlic, who are u talking to? are u saying my ZZ4 cam is to big for a 305?

palric

iTrader: (1)

Sorry for the confusion guys.

I was referring to the RamJet cam although now that you mention it I've tracked down a couple of guys on the ZZ4 (I was about to buy one) and from what I gather it doesn't work well on a stock speed density TPI'd 305. I have a '91 Formula with speed density 305 TPI.

I gather from your handle you have an '87 which means MAF which also means your system is far more forgiving than mine (SD) and the ZZ4 will likely work in your car without issue. The late model ('90-'92) 305 TPI guys that I queried who installed the ZZ4 said they had to cut several chips before the car would calm down. Idle and driveability issues mostly from what I gather. Been there and done that -- I installed a 217/225 cam on a 109 LCA on my last 3rd gen (speed density not MAF) and it was a never ending frustrating problem I never did get the right chip cut for it.

I'll be upgrading my cam next year, the criteria is it must work well with the stock chip.

hope this helps,
RP.

Ray87Z

The lift is alright, but the duration is too short. I'd get something bigger if it were me. I would think 210/220 or so @ .050 would be something better to aim for. I've run a 204/214 cam in my 86 IROCs 305, and you could stand to go slightly bigger than that...

bdiroc

i thought my car is running week too palric.but it was only rated at 190 horse.i fell that all the new parts did not help due to the peanut cam. the car doesnt through any codes and it repeats within hundreths every run .i raced it about 100 times last year.i have never ran it at very cold conditions .so im sure there is more there.theres a guy with a 305 tpi with 100 shot of nos and he only runs like a 13.55 and i have raced mustang lxs and they run about 14.70 at ntr .i see 350 tpi run like 14.50.so i thought it must be the conditions and track not the carit is always poor conditions at ntr.about that 109 lobe sep. that is what the peanut cam is unless i am mistaken.i just wanted to get the 305 in the 13's before i ad the nos to it .then maybe i can tow it home and build the 350 thanks

palric

iTrader: (1)

bdiroc -- I see your point and after 100 runs you definitely know your car.

I agree, in all likelihood your numbers are based on the poor performance of your cam. I mean, I get 14.6 out of a pretty much bone stock 305 TPI but with L98 cam.

You could be facing one of those rare circumstances where a cam change nets you 50+ hp and a full 1/2 second ET, not because of the cam but because of how well the application you are installing the cam in, has been prepared (with other mods) for that cam.

If you have a MAF based system I would go so far as to suggest you look into the LT4 HOT cam (218/228 .525/.525 lift with 1.6s) this cam has a wide LCA (115) so is very streetable and IMO would turn your 305 into a real terror. It is also very affordable and there are a few 305s on the board running this cam they say they love it.

If you are speed density then anything in the range 210-214 degrees on the intake at .050 with 112+ LCA will work. You owe it to yourself to call Comp, Crane or LPE (Lingenfelter Performance) and tell them about your setup to see what they recommend.

Keep in mind lift is not so much the issue with regard to driveability, intake duration and LCA has a much greater effect on driveability. I would be very interested in hearing how your times improve after the right cam is installed.

good luck,
RP.

D's89IROCZ

I got the ZZ4 going in this spring ..... but I got the intake for it now ...... can't wait to see what it does

good luck to ya with that cam

wyclefsirocz

the Lt4 hot cam is a lil to much for 305 w/o head work. the ram jet cam will work nicly on a 305tpi. i'm also thinking of getting it, over my stock L98 cam. if you have some head work done get the LT4 cam. thats my .02 but its ur car and you should make the choose of how radical you wanna go,

bdiroc

thanks for all the information i do believe it willl make a huge diffrence with a cam since everything else is setup for for the cam.i have been thinking about the lpe 211 cam.the only reason i mentioned the ram jet cam is that you can get it very cheap on ebay and i figured i would go cheap on the 305 and buy a lpe cam for the 350 that i will build this summer or fall.i figure there has to be people out there with the same setup and aftermarket cam in them that can tell us real world results.or am i the only dummy putting these parts on a 305 .i thought they were your basic upgrade parts and this setup has been around for a long time now.i will let everybody know what happened with my times and what cam i go with thanks

bigals87z28

well everything im getting for the 305 i can swap to the 350... i dunno about the heads(SR torquers) but the exhaust, cam, rockers, lt1 intake. all that will be going on the 350... whenever i get that

palric

iTrader: (1)

I beg to differ. By example I ran a 217/225 by .505/.525 on a highly mod'd L03 several years back. It made excellent power from 2000-6500 rpms. AFAIK the L03 is far less forgiving than the LB9 -- when it comes to vacuum, MAP and prom issues. BTW: I had not modified the heads on the L03.

To find or more details on this cam in an LB9 I've also chased down a few members by PM who claim to have installed LT4 HOT in LB9s. Each of them (2 guys) raved about it no end. To the best of my knowledge they had not removed the heads either.

IMO the LT4 HOT needs an excellent exhaust system behind it (no small investment there I might add) and an efficient intake in front of it. The appeal of that cam to me is the wide LCA and the fact that it is designed to work in a tight emissions range (Corvette). This makes it eminently streetable.

The Ram Jet, on the other hand and although an EFI cam, was not designed to work on engines operating within strict emissions guidelines. Like the ZZ4 cam it will require prom work to make it friendly -- or so I have been advised by some guys who have installed them.

Reminder, if you read bdiroc's post he has Vette heads, Accel intake and exhaust work. The search engine is still dead. When it is up try "LB9 LT4 HOT" for search parameters and you'll find the details.

have a nice day,
RP.

wyclefsirocz

then if he has vette's heads the LT4 hot cam will be fine, i dunno what he has under his hood, but i've also been told and seen people blow there 305tpi, with the LT4 hot cam..
don't get me wrong i've seen a 305 running 13.30's with that cam but that with

slp 1-5/8 headers
no cat
mufflex 3.5" catback
tpis big mouth base
tpis large tube runners
tpis ported plenum
reworkedLB9 heads(.1" oversized valves, ported, pholished and milled)
march pulleys
msd igition
10 bolt posi w/ 3.73 gears
P275/50R-15 Comp T/A Drag Radial
lca's , panhard rod, stb, sfc
afpr,airfoil,and thats on 96

bdiroc

here is a list of the parts i have -58cc alum. vette heads,accelll intake,accell runners,ported plenum,new injectors 19lb,gutted airbox,accell 300+ ignition,crane 1.5 gold roller rockers,tci breakaway converter,tci 700r,alum. driveshaft,3.45 disc rearend,edelbrck control arms and panhard rod,eibach pro springs,edelbrock headers ,gutted cat,3 inch flowmaster ,prostar rims,bfg drag radials,holley 255lph fuel pump,well i think that is about it i may have left something out .as you can see with all of these parts i run very slow .if the peanut cam is not what is holding me back then i better do a compression check on the motor or something .one note to this before i put in the new tranny and rearend and convertor i ran a 14.10 with the gtech .so i think the converter is hurting me right now .please give your opinions thanks

wyclefsirocz

the tci break away converter has a stall of about 2600, if i remeber correctly, the ram jet cam wold be good the, that should get you into the 13's with that converter...

you caould also go a little bigger than that cam, like the LT1 or LT4 cam, these 2 cams would also be good

my .02

rtfrew

Okay, I have one of these in a 305 and it runs like crap.... great power to 1200 then it falls on its face and uses fuel like crazy.... The heads dont flow enough for this cam and LSA is all wrong.... stay away

bdiroc

thanks for the reply, but I asked about this in 2003, the 305 is long gone, I built a 350 with a 211 cam and have ran a best of 12.80 with the tpi (aftermarket) and 12.47 with the stealthram installed. thanks though and good luck with your motor

Mystyk_Wynds

When everyone looks for camshafts they always over look the stock cam or they overlook the specs used on performance cams.
One of the most important things to look at is the lift and what the RR ratio being used is. If they say with 1.55/1.6/1.65/1.7/1.72/1.75 or 1.8...and all your equipped with is 1.5...Your lift isn't the same. The second most important thing in camshaft specs is a combination of effective duration AND LSA.
Here look at the stock cams for the 305.

https://www.thirdgen.org/mods3

The 1st to last one, is only found in 88-89 305's M5 and Corvette 350's ONLY. I see it like this if it was good enough for flagship corvette, its not such a mild cam.
Its a great cam and it seriously wakes up a 305. This is the cam in my 88 gta. I run beside stock lt1 and semi stock 350's.
I have been informed by some of the best on this board, and lt1/lt4 cam is downgrade from what I run. They also say this a wideband cam. Long high TQ and long mod HP. All the calculators that I have plugged this cam into say the torque peak is at 4k. I know from driving, its comes on nice at 1800, 2500 you break the *** free, and at 4k it feels like you've been donkey kicked and hold the bleep on, it still pulls hard to about 52-5500 then its flat on its ***.

https://www.thirdgen.org/forums/exha...ou-ever-3.html