Went to the strip

[LEADFOOT]

I made it to the strip this weekend and will post some pics and video clips and my time slip tomorrow night.

My ET hasn't changed much with the headers and all new exhaust. I put my under drive pulleys back on. Anybody know what else I can do (minus the wynjammer that I want badly) to get it to move faster. It launches pretty hard and good. 10 sec in the 1/8 and 15.88 in 1/4. Currently has 3.42 gear thinking of 4.10's, torque converter, would like to have the wynjammer and that AFI intake, roll pan, and I am currently thinking of a way to make my back seats easily removable and then easy to put back in. Like a pin and clip or something. The GVWR is only 150 lbs heavier the the s10 ext cab xtreme. Any thoughts are greatly appreciated.

[Sparky2263]

What was the 60'?

Can you post the timeslip? I'm very adept at reading time slips.

Noticed Tampa in your sig. Go to Bradenton?

[slowzq8]

Do you know whart it ran before all the mods in your sig?

[joker2040]

You wanna see a slip check out my slow POS slip.... for a 100 this is all I get... BAH HUM BUG!

[joker2040]

Tranny type: Automatic Tires: Street Radials Race weight: 3850 Horsepower: 257.0 60 foot time: 2.215 1/8 Mile ET: 9.480 1/8 Mile MPH: 73.40 1/4 Mile ET: 14.721 1/4 Mile MPH: 95.88

[LEADFOOT]

What was the 60'?

Can you post the timeslip? I'm very adept at reading time slips.

Noticed Tampa in your sig. Go to Bradenton?
I might be able to post my time slip tomorrow evening. My computer doesn't like my digital cams s'ware for some reason. Yes, I went to bradenton on sunday for runday sunday, never again. Too many cars and not enough time. You have to wait about 1.5 hrs between runs, can't get back to back runs, sucks. Here is what my time slip reads: 60'-2.146, The next time is 6.476 I don't know what it means, 1/8 mile 10.054@68.15 mph, next time is 13.213 I don't know what it means either (they tear the time slips in half), 1/4 mile15.880@84.19 mph. I don't know what it was stock. Didn't take it to the strip before mods. If anyone has or knows someone with a STOCK (no mods) 2002 Blazer 2 door or near that year with V6 please let me know what there time was, 1/8 and 1/4 mile.

[lowriderbowtie]

pretty damn quick blazer if you ask me!! good job man...a s/c would be soooo sweet

[Sparky2263]

Got a tach? You're shifting way too early. Easy too see.

[LEADFOOT]

pretty damn quick blazer if you ask me!! good job man...a s/c would be soooo sweet
thanx buddy. s/c coming soon. I didn't have the funds to get in on the group buy, but will be ordering real soon.

[LEADFOOT]

Got a tach? You're shifting way too early. Easy too see.
Yes I have a tach. I have the HTPP3 and have adjusted the shift points. At that time I was shifting 1-2 and 2-3 around 5000rpm. I have had them set to shift about 5300 rpm before and seems like after about 4900 it looses power and then takes longer to get to the shift point. I just saw a few minutes ago in a post the someone shifts about 5600. So I guess I should change my shift points to about 5300 or 5400 or even 5500 and see what that does?

[slowzq8]

The shift points look pretty good to me and that is a nice 60'. The mph is a little low compared to my truck, but you are a lot heavier. The mph seems to match the et pretty well. My truck actually liked being shifted a little early from 3-4 in my 5-speed, not sure what your truck would like. I picked up almost 1.5 mph by making the 3-4 shift at 4700-4800 rpm

[Sparky2263]

I would try both ways. The 1-2 shift always likes being held longer because of the huge jump from 1st to 2nd gear. The 2-3 can usually be done 100-300 rpm's less.

You have a sweet 60' but the rest of the time slip shows a steady falling off. Most people have a tendency to shift early when starting out. Try 200 rpm's more on the 1-2 shift and 100 more on the 2-3 shift. If it falls off (which I doubt) go the other way. If it picks up (which I think it will) add 100 rpm's 'til it falls off.

[Sparky2263]

The shift points look pretty good to me and that is a nice 60'. The mph is a little low compared to my truck, but you are a lot heavier. The mph seems to match the et pretty well. My truck actually liked being shifted a little early from 3-4 in my 5-speed, not sure what your truck would like. I picked up almost 1.5 mph by making the 3-4 shift at 4700-4800 rpm

He has an automatic.

[slowzq8]

yeah i know i was just trying to get at the point that in the higher gears it might possibly like to be short shifted a little. All you can do is play with it and see what works. Stock motors don't like a lot of rpm although his mods should help that out a little. My truck pulls quite a bit better with the 3" exhaust, even though i still have stock manifolds and y-pipe.

[joker2040]

I'm just curious..... Why are you running a 3" exhaust with the stock y pipe and stock manifold?

[slowzq8]

I got the exhaust for $50 used with all the sensors and a cat and muffler. The y-pipe that came with it was custom made for a t56 so it wouldnt fit on my truck. I can't afford headers or a t56, so that is how it is gonna stay for a while. Maybe this summer I will make enough money to do the t56.

[LEADFOOT]

I just redid my entire exhaust except for the y-pipe, I left that alone. I talked to alot of people, some here, some exhaust shops and mechanics and about 98% of them that were familiar with my engine said to stay with the 2.5" pipe, so I did. I was going to wait and do it later but here is why I had to do it when I did......http://www.sicgmtrucks.com/forum/showthread.php?t=2162 It sounds great.

[slowzq8]

yeah mine isnt mandrel bent so it doesnt flow way too much for the motor or anything. the stock y-pipe is still holong me back tho i think

[biglouie_underpressure]

good numbers!

[LEADFOOT]

I would try both ways. The 1-2 shift always likes being held longer because of the huge jump from 1st to 2nd gear. The 2-3 can usually be done 100-300 rpm's less.

You have a sweet 60' but the rest of the time slip shows a steady falling off. Most people have a tendency to shift early when starting out. Try 200 rpm's more on the 1-2 shift and 100 more on the 2-3 shift. If it falls off (which I doubt) go the other way. If it picks up (which I think it will) add 100 rpm's 'til it falls off.
Thanx sparky.......I took your advise on the shift points and I can feel a difference. I haven't made it back to the strip yet but maybe this weekend. I am shifting 1-2 about 5400 rpm and 2-3 about 5200 rpm. When I tried this before the headers and new exhaust it just slowed me down. So I guess the headers and the exhaust opened up the motor to allow for more top end. It feels like it might keep pulling past 5400 rpm but I don't want to push it and blow the thing up, it is my daily driver. But anyway I just wanted to say I can feel a difference.

Also I just found out that east coast customs has the roll pan kit for the blazer extreme with the resized fender skirts so I am going to order that tomorrow and get rid of that heavy ass bumper and hitch that I will never use. Go to http://www.eastcoastcustoms.com to see it.

[nomaboy]

yeah mine isnt mandrel bent so it doesnt flow way too much for the motor or anything. the stock y-pipe is still holong me back tho i think
yea that y-pipe is costing you about .3-.5 in the 1/4. i got .45 out of my y-pipe.

[slowzq8]

That would be sweet if it was because i am looking for 3 tenths to get me in the 14s now.

[jharrison]

I tried many, many setups and diameters and combinations what I ended up with that felt the best to me and the "seat of my pants" was. The JBA titanium ceramic headers with a custom Y that was 2 1/4" O.D. slowly transitioning to dual 2 1/2", coupled to a Flowmaster Y that goes from dual 2 1/2" to a single 3". The resonator or precat is removed and I am running a Carsound high-flow 3" inlet/outlet cat coupled to a Flowmaster Original 40 series with a 3" inlet and dual 2 1/2" turndowns. (Just as a side note it took over 2 years for the SES for the cat to finally come on. I now run a Caspers O2 simulator to keep my truck happy.)

I run this setup for a reason, the first being that it took away a little low end and moved it up higher. Originally takeoffs had a lot of wheel spin and on top end the truck fell on its face. Now takeoffs are enough to get a chirp then a constant pull all the way through. Keep in mind though that I am running a little higher compression than stock. 10:1 as opposed to 9.2:1

[ZR1-S10]

Hopefully I'll be getting a new Y-Pipe soon too. Isn't our header collectors 2.5" and the down pipes should be made to macth it? Or should I go with the smaller 2.25" one.

[nomaboy]

on a 4.3 you wouldn't want to go much bigger than 2.25 on each down pipe. your engine will never need to flow that much.

[jharrison]

JBA headers and our stock manifolds both have a 2 1/8" internal diameter collector, closest thing I could find was a 2 1/4" outer diameter. It only ends up near 1/16" off which isn't much.

[bvr775]

MSD6A,MSD Coil


these 2 don't work well together. the msd coil is acualy not as hot a spark as the factory 02 coil, but even then you only going lose or gain 1/2 a horse or so. you really need an unlocked comp and a laptop with your truck. You can probally do it yourself if you good with electronics. From what i understood when they did mine is it's pretty much like unlocking an atalon processor.
did you actually run the 1/4 or is that a calculated time?
have you ever dynoed your truck? this will give you better idea of what it's doing and where to set you shifts. with that balance shaft engine you no good above 5000rpms.

[Sparky2263]

My balance shaft motor pulls clear to 5500. The dyno sheet at my Cardomain site shows it pulling to 5200 and that was before all the mods I have done since (that was back in 6/04). With a stock cam.

It will soon be pulling clear to 6000 or better.

If you notice, the dyno operator lifted at 5200. We hit the rev-limiter (gone now) and it shook so violently he didn't want to hit it again. But it's pretty clear 5200 was about the peak. Then ;).