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lookin for another opinion.

11K views 67 replies 11 participants last post by  Hogg 
#1 ·
well getting ready to purchase parts whene tax refund gets here. i have a 305ci 230 hp rating engine. im going to replace crank and connecting rod bearings and bore the cylinders 30 thousanths of an inch. i would like some insight on the best parts combo to use for low end torque. im looking for a "off idle cruiser". low rpm kinda thing. its going to be for a 1989 short s-10 with auto trans and 3.08 rear end. i have some 1.84-1.50 434 casting heads and a matching holly street dominator intake manifold number 300-38. i also have origional cast iron marine intake without exhaust heat crossover as well. the cam is stock marine speced at 200 / 212 intake / exhaust duration @ 0.05" lift .4 / .41 intake / exhaust lift with 1.50:1 rockers
I will be purchasing new lifters and installing camshaft bearings as well. i have a useable pair of 350 vortec 1.94-1.50 heads but i would need to purchase a matching intake manifold(not completely opposed). either set of heads will get a freshen up at the machine shop and a smoothing of the casting marks on the intake side ports and little backyard porting on the exhaust side. if i could get some knowledge on making what i have the best combo for down low cruiser engine with a great sound. also i will be using a summit hei distributor, short headers and rochester carb tuned as lean as i can get without burnin up the pistons. i only know enough to get myself in trouble so...make sure im puttin this together the right way the first time. thanx
 
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#41 ·
Mathematically it isn't that hard to figure what it would take to run a 9 second 3200lb truck.......well really not that hard for a mid 10 second truck either.We have done it for yrs but with a dedicated race 9.90 cars.

But neither of you S10 guys said anything about a roll bar......................

So as the saying goes:



Of time slips and trucks

Oh:



One more thing.If you listen and do what Vinnie,AP,CD,Tech,and a whole slew of guys tell you what to do,then you will learn and benefit from them.They have been there and know.Us,more yrs in 9.90 racing than I would want to admit to,with a national win which most can't claim in their whole career.I have seen 305's run strong on Thirdgen.com and many are well developed turbo cars.But for the most part the S10's fall out of competition after 10.90.

Don't forget the pix's of the roll bar in that mid 10 second truck....................
 
#43 ·
Mathematically it isn't that hard to figure what it would take to run a 9 second 3200lb truck.......well really not that hard for a mid 10 second truck either.We have done it for yrs but with a dedicated race 9.90 cars.

But neither of you S10 guys said anything about a roll bar......................



Of time slips and trucks

Oh:


One more thing.If you listen and do what Vinnie,AP,CD,Tech,and a whole slew of guys tell you what to do,then you will learn and benefit from them.They have been there and know.Us,more yrs in 9.90 racing than I would want to admit to,with a national win which most can't claim in their whole career.I have seen 305's run strong on Thirdgen.com and many are well developed turbo cars.But for the most part the S10's fall out of competition after 10.90.

Don't forget the pix's of the roll bar in that mid 10 second truck....................
Vinnie know's whats going on. Tech is very Book smart. Ap has never had a 10 second anything let alone something that runs.

You have a 9.90 class car? That really dont give you a reason to talk down to these new kids. These kids are the future of the hobby. So you have Wally? That is something to be proud of as those are hard to get. Congratulations!

No doubt the 9.90 cars are cool BUT so does 10K other racers. Really not a reason to put yourself up on a high chair. Now if your running in the Top Comp class.. Those guys are making big power. But still not a reason to trash these young kids. If you can help the kid then great. If not why post just to beat your chest?
 
#42 ·
if your that interested you can watch my photo journal for when i build mine your partially right these trucks arent extemely quick if you dont get the weight in the right place BUT when weighted properly 9s are very attainable though i claim nothing of the sort for my truck but ive seen it done several times i think weve drifted off topic tho s10again i agree with what was alread sid if your 305 neds a freshen up do a basic rebuild and then save your money for whatever you truely want from your truck start buying parts now and by next tax time you could have a hot rod if everyone will allow me to call them that
 
#44 ·
Frankly some of the fondest memories I have was early on in my racing career when I raced heavy E.T. for three yrs in a Dodge Dart sport 340.As I got accustom to the car,I can remember nights when that car and me became one.I a zone so to speak.It was a donator in the class where I was consistently in the top 4 at three tracks.
What gets me typing is the cam companies selling cams based on what they "sound" like.I think that has undermined the performance industry and hot rodding in general because those cams generally don't mean anything and if misapplied actually can mean alot less.They are selling a mind game.

We all pretty much know about cam comparability and compression ratios.

Both of those guys have been effectively advised what to do.The choice is theirs.

Now..............how about those pixs of roll bars,time slips,and the trucks................
 
#45 ·
Not sure where you get this mid 10 second thing :confused: But OK,,,lmao
I get why the cam guys build these thumper cams. A lot of people just want the sound and really dont care how fast it is. Is it my thing? No. But if it make's the car owner happy I'm all for it as It's supporting our hobby.

Just as you could care less of a S10 Truck and trash on it because he dont have Roll Bars.. They could careless for your 9.90 car. To them they're car is just as important to them as your OMG 990 car is to you. :rolleyes:
 
#48 ·
While I am still thinking about this,I'm as guilty as the next guy,we all on these sites give advise as to the question whether it be about cams or anything else and never say you should get a really good idea where your at with the engine your working on.Read the plugs,do a compression test,leakdown test.Get a really good handle on that before you do any mods.It's in the long run in your best interests and considerate of your limited budget.
 
#50 ·
opinion

Not sure who the post was meant for concerning s-10 roll bars. But if by chance it was directed to me...my s-15 does have roll bars...cert for 8.50's. Cant run at the track without it. But back on task...s-10 again, you can build yourself a inexpensive 305 that will provide the torque you want. I get your picture of what you're after. You can make a very streetable and driver friendly ride without alot of money. Cam specs are just numbers that confuse the average joe...everyone means well with the cams they recommend, but it may come accross as a foreign language to some. Most of them have been "in the game" allong time and those numbers translate into a larger picture for them, myself included. Decide on where your compression is going to be, what heads you're going to use, and how you're going to drive it...then decide on a cam. It sounds like you want off-idle performance through 4500 rpm. Keep the power down low. I'd direct you towards an RV cam, because it keeps the power down in the low RPM's.
 
#56 ·
have you run that camaro down the track or is it just for cruising? Beautiful car either way.
Thanks!That"s nice to hear someone who likes your work. Other than the back half I've built it all.

I've had it at the track a couple times and it runs 10.0X's on a easy tune. If I lean on it a little I've ran some high 9.90's on Big Hoosier's. I'm hoping I can best that with some slicks and put the motor on kill. Lately I've just been doing the car show's and cruise inn's and working on the Red 68.
 
#54 ·
This is our busy time in the build/parts business so I'm on the site and then not.

I wouldn't recommend a RV style cam for your 305.I think it will fall short of your expectations.

I won't answer your banter from either of you guys.But still haven't seen pixs of the 10 second truck or of the time slip.
 
#55 ·
upinion

resized a couple pics of my truck in my album. I'll do some more tomorrow. I dont feel the need to get in a pissing match with anyone on here, thats not why I joined. I joined because I share a passion for cars, fast or slow. I've been building race cars since I was 16 and love to share some of the things I've learned over the years...and I also enjoy learning new things as well. I certainly dont know everything and wouldnt claim to. I also dont have an ego that gets in my way of learning.
 
#59 · (Edited)
allright, i think i kno what i want to do for this 305 thing. took a little advise from f-bird and i am going to invest in an intake manifold for vortecs(taking opinions on intake choice), check, resurface and then reshen up and little die grinder action of my pair of l31 vortecs as well as add some roller tip rockers with the grooved fulcrum balls, .015 head gasket, summit #2 hydraulic flat camshaft and lifters, double roller. block will go to the machine shop to be checked and bored to .040 to match summit brand hyper flattop 4 valve .040 over's. summit $120 entire distributor kit everything but spark plugs. plugs will be AC-MR44T's or AC-MR44LTS's(taking opinions on plugs as well). patriot s-10 mid length 1.5" tube 2.5" collector headers with true duals 2" with h pipe(olso considering exhaust ideahs). carb will be a rochester Q-jet set up lean. any rochester guys chime in with jet considerations. i have hardly a clue on resetting a carb to a different engine. i can clean and reset one that ran before no problems but i have a 350 carb i want to use for the 305. my guess is mileage and response will suffer unless i change a few things(correct me if i am wrong please). ive decided that this engine will be in the truck for a long time so i should make it at least a good engine on a budget instead of a low buck pile of money. this engine will be highly satisfying to me. please add to my setup here especially if its a cheap or free upgrade with any insight. should i open up oil galleys deburr water jackets...also how do you "port match" I LOVE to tinker. thanx
 
#61 · (Edited)
i locally found a cam for this engine build. it is edelbrock brand cam and lifter kit w/ edelbrock double roller timing chain and gear set. for $120. it is in194- ex214 dur. in.398 - ex.442 lift. lsa is 112 but it sounds like the right cam for my setup and its cheap and name brand. is edelbrock cams good? the numbers sound small on the intake but maybe 1.52 rockers would help a little? as long as geometry is good? would this cam be compareable to or better for my build goals than the summit #2 cam i was considering? the purchase value is with the edelbrock in my eyes. dont want to make a mistake.
 
#67 ·
nice price tag too!

I'll be using a 06-07 model, right before the price got outrageous, still an LS2 and 6 speed which isn't a bad base to start with- and 4 doors and leather (without a truck bed).

I'll post pics in a few days, I cant upload pics from the ****ty phone I have but I should be getting a new iphone 5 in a few days so I'll take pics then and maybe a video too if I can figure it out.

My car list is:

'78 Bobcat in 4 colors with a "semi circle track" engine that is running lower compression for 87 octane. (9.8SCR, 140lbs cranking compression), when it gets warm I have all the parts to swap EDIS on it as well as "bike carbs".
'78 280Z in black epoxy primer (waiting for warmer weather to sand and paint) currently has a modified stock L28 and 5 speed, working on a sbc 302 and T5 that is about 2/3's done
'72 Cutlass has a rebuild and modified TH350 mated to a rebuilt and modified Olds 350, only thing it needs is to be stripped down to steel and repainted, which I'll probably send out to have done.
'09 Silverado 2500HD 6.0L 6 speed auto- the only thing I have changed on it is the tires, wiper blades, and oil (my "I dont have time to mess with it" car)

My new job starts Monday which came with a 18k/yr pay raise which will help fund the CTSV build but I'll probably trade the truck in for it when I buy it.
 
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