chevy355s10

i get what your trying to say. but at the same time,i dont read magizines. no build i have EVER done,comes from a magazine. im all bout 1st gen small blocks,so LT1's are kind of a new horizon for me. yes,there are simularities between 1st and 2nd gen engines. the bottom end is easy for me,the top end is new.
the build is ,almost to the dot,comes from the dyno thread here.so i dont see what is so bad.dont take it wrong that im not taking advice or that i dont appreciate it,im just making the point that im not dumb.
the intake and TB,again...used to gen 1's. where a 2 liter bottle with a carb strapped to it is better than the old iron stockers.

the 3.73's and 4.10's,i told him he would need it. he dont wanna do it because he thinks his MPG will suck real bad. i told him that any build that includes a bigg cam will suffer in that department to some degree or another,so whats the big deal about adding the gear set?

also,as far as the cam goes,im tryin to save him from himself. that was the "smallest" cam i could talk him into. he wants a cam that sounds evil. i told him quite honestly "bigger isnt better" and that "just cause it sounds evil,doesnt mean it runs evil". he wants to run 11's. i told him he would be more happy with this set-up seeing as his car is a DD. mind you..remember,he was ready to put the biggest damn cam that comp makes,in his engine.

but to make sure you and everybody understands,i am thankful for all the imput and it wasnt for nothing. im taking it all in.

chevy355s10

btw,dont know if yall would like this kinda thing,but here is my old s10.
pic
http://i941.photobucket.com/albums/a...0/IMG_1227.jpg
http://i941.photobucket.com/albums/a...0/IMG_1231.jpg

and the idle clip. this is right after breaking the cam in. so the timing was'nt dialed in quite right and the carb was crap. was leaking raw fuel in the the Barrels on the carb. was craked somewhere.. never got an idle clip after everything ws right. too worried about having fun with it...and yes,those are 10" meats on the backs using factory rims. tried to keep it sleeper-ish.
http://s941.beta.photobucket.com/use..._1237.mp4.html

TravisMcGill2000

iTrader: (2)

Is that a georgia tag on the s10

96capricemgr

iTrader: (1)

The Comp rpm ranges are wrong. The XFI 292 that probably had his eye says 6200 on Comp's site but one guy here tried it in a stock shortblock with Lingenfelter heads and a stock intake and it hadn't peaked yet at 7000rpm he then went to the Advanced Induction 226/234 cam mentioned by quik95lt1 and was MUCH happier. That AI cam can be had on a 110LSA which gives it some overlap and can have a nice sounding idle without having huge duration and rediculously wide LSA the way shelf cams do will peak about 6100 and you shouldn't have to rev past about 64-6500. Most of the quick NA street LT1s run 107-110LSA.
The short intake runners on the LT1 shift the powerband up in the rpms compared to the dual plane intake gen 1 duration/rpm rules most cam companies use.


The fuel economy thing isn't that bad the M6 has a double overdrive and what from 94 on up it was a .50 OD in 6th, 4.10s just make 6th usable more of the time. Even on the A4 cars you have lockup and OD. My car in my sig is every bit of 4300lbs on the street since I leave the slicks and tools in the trunk and I get 19mpg or so on the trips I drive to the track and race and then drive home. Around town with mixed rural driving it is more like 17-18 that is 4.10s and 3800stall. Injection is great if you embrace it.

trilkb

iTrader: (4)

Im gonna go off the charts here and say run a LT4 hotcam, 1.6 rockers, and a 75-100 shot just for fun. Alot of people say the LT4 hotcam leaves alot on the table, blah blah blah. If your not doing heads, it really doesnt leave anything on the table and runs just as quick as another cam only car with the right 60', but you can drive it every day as well. The 100 shot would probably get you into the high 11's.

Check out this link, the times vary, but a 6 speed car should be on the lower end. 112+ mph trap speed is good enough for low 12's. https://ls1tech.com/forums/lt1-lt4-m...ile-times.html

Are there better cams then the LT4 hotcam? yep, but its a solid performer and has a good RPM range, plus Ive never heard ANYONE bitch about how it drives as a daily driver lol.

If your doing heads and cam, do A/i or LE for sure.

Alot of it depends on what kind of driveability he wants out of the car too. And more of it depends on what kind of driver he is. 60' is all its gonna come down to in a cam only car, if it cant 60 it doesnt matter if its got a comp 306 or a LT4 hotcam it will never run "forum" times.

guppymech

iTrader: (7)

You should really have your friend reconsider 4.10 gears. If you do get the car capable of running 11s he's going to need them. Ex. stock 3.42s @ 116 will be at 5200rpm, 4.10s @ 116 will be at 6300rpm. No engine that can run 11s is going to want to run through the lights at 5200rpm. Thats with a stock height tire, it only gets worse with a taller tire.

As was said, with the double overdrive 4.10s work great and have a effective 6th gear cruising ratio of 2.05. I lost 1 mpg around town with the 4.10s. A radical cam is going to cost your friend more mpg than that.

PS. nobodys going to run 11s with a M6 on a 10 bolt.

chevy355s10

no,its a South Carolina tag. close enough,tho

chevy355s10

ok,ill tell him about the cam kit.tell him to get the full kit. no peicing stuff together.

i figure,ill show him the 2 AI cams(226/234 and the 230/238). im sure he will go for the 230/238 cam.
so, we will keep the stock intake,TB,and do the LS1 lid conversion.
i will use the impala head gasket set to bump up the compression.
the LT's
upgraded clutch
his car WILL have 4.10's. even if I have to buy them.
get some suspension upgrades(Tq arm and such) and a set of ET's.

he should be happy for a while.

sound like a good collection of information from everybody? what do you think this will manage for him to the wheels and 1/4?

96capricemgr

iTrader: (1)

There is a .026 gasket available from Victor Rienz and Mr. Gasket. Only .003 thinner than the Impala gasket but worth a look.

fex77k

iTrader: (2)

I had really bad luck with any of Mr Gaskets junk(honestly they have always been terrible) some have had some luck with their head gaskets. Now I run a set of Cometic's. Used to run Impala gaskets, but my local dealership can't seem to get me the right ones. I give them the part number and they cross it to a stock gasket.

96capricemgr

iTrader: (1)

I had some packaging issues with the Mr. Gasket version, everyone did. The Victors though were better packaged and I never had an issue. Victor is an OEM gasket supplier.

Cometic has I think a .027 option and those are at least theoretically reusable but you need a good finish on the block and heads.

MonmouthCtyLS7

iTrader: (6)

Seems like the basic mid to late 90's go to LT1 Fbody setup...been outta the LT1 world awhile but I don't think there's any need for the 58mm TB unless your running FI.

96capricemgr

iTrader: (1)

With forced induction and resulting compressed air why would you need a bigger TB more than an NA setup?

I am not arguing for a larger TB on this build but I do believe them worthwhile on a good heads/cam or built NA motor.

chevy355s10

well,with the new list of things,what do you guys think it will dyno and trap?

Dave357LT1

Cam only 114ish?

chevy355s10

well hell,if there is a good 60,that should put it in the high 11's. like 11.70-11.90's,right?

chevy355s10

now for the next question: how high can you rev a stock short block lt1 before it lets go?

96capricemgr

iTrader: (1)

Some of us take them to 7000 others feel safer with a self imposed limit of 6500.

I did spin bearings in one that was seeing 67-6800 but it had some tuning issues like not enough fuel pump at first and the tuner I was using at that point had left a lot of tables stock above 2500rpm so there were a lot of conditions where it would pick up some knock.

quik95lt1

iTrader: (7)

i used to twist my stock crank rod 355 to 7000 normally....ran perfect for 3 years and now its in my buddies impy running fine.....(new bearings and rings of course)

chevy355s10

cool. i figured we would set the rev limiter for about 6900-7000. seeing as more than likely,he will be shifting at 6700 or so with the 230/238 cam from ai