Over the winter I installed TF Heads and an Xtreme 218/224 .495/.503 cam. this was my first time out on the stock chip. 13.728@100.78MPH It shifted at first at 4900 and the second time at 5500. Plus I hadnt shut off the car since the 60 mile drive. Plus both fans were going while I was racing. I know with a better chip and cooler motor I can get maybe a 13.5-13.4 My question is it seems like my MPH is too low. Yes no? I upgraded the intake also with an edelbrock base and asm runners.

 

I agree...mph should be up a little. If the engine was cooler, I think your mph would be up. What's your other mods?
Timeslip?

 

what gear are you running. also what kind of trans. Im assuming 700R4.

 

Engine Modifications
-L98 350 Shortblock
-Trick Flow 23* Aluminum Heads 195cc 2.02/1.60
-Comp Cams Xtreme 218/224 .495/.503 112 LSA
-Comp Cams Pro Magnum 1.6 Roller Rockers
-Trick Flow 7.300 3/8 Pushrods
-Edelbrock High Flow Base Manifold
-Arizona Speed & Marine Large Tube Runners
-BBK 52mm Throttle Body
-Edelbrock Aluminum Water Pump
-Summit Double Roller Timing Chain
-Crane Cams Adjustable Fuel Pressure Regulator
-Moroso Polished Aluminum Valve Covers
-MSD Competition Fuel Injectors
-The Almighty K&N Filter
-ARP Fasteners
-Walbro 255lph Fuel Pump

Exhaust
-Edelbrock Headers “Jet-Hot Coated”
Catco 3in High Flow Converter
Edelbrock Catback

Transmission/Driveline
-700R4 with Transgo Shift Kit
-ACT 9.5in 2600 Stall (Not Installed Yet)
-Perma Cool Transmission Cooler
-Summit Transmission Remote Filter Kit.
-Derale Transmission Pan
-1le Aluminum Driveshaft
-9 Bolt Australian 3:27:1 Posi Rear

Suspension/Steering
-ES Front and Rear Sway Bar Bushings
-ES Front and Rear End Links
-ES Transmission Mount
-ES Motor Mounts
-ES Front Lower Control Arm Bushings
-Hotchkis Strut Tower Brace
-Hotchkis Lower Control Arms
-Hotchkis Panhard Rod
-BMR Adjustible Torque Arm
-BMR Lower Control Arm Relocation Brackets.
-KYB Rear Shocks
-Monroe Front Struts
-MOOG Steering Componants
-GM “WonderBar”
-WS6 Quick Steering Ratio Box

MISC.
-March Underdrive Pulleys
-MSD 6AL
-MSD Blaster 2 Coil
-Conrod Cap&Rotor
-Taylor SpiralPro Wires
-BFG Drag Radials

 

Well since it wasnt like a test and tune night, it was High School Nationals. Even though I am in college I like to beet on the kids and all they give you is your reaction time, 1/4, and MPH

 

Id say your motor being hot from the trip hurt you. Try icing it down, if you dont have alot of time after the trip before you race.

Did you have any tire spin. I would try going with a lower gear.
When you get your stall in you should notice a good difference.

 

What was you 60ft times?

 

I wish I knew the slip said
60" .000
330 .000
1/8 .000
MPH.
1000 .000
1/4 13.728
MPH 100.78


On the first run there was 0 wheel spin. I also launched off idle. anytime i would try to torque it up the car would creep forward. 2nd and 3rdrun i got it to about a thousand but i spun them all the way until I put it into 2nd.

 

definetly a lower gear, and get that stall in. You will be screaming.

 

Is it just me or are your pushrods a little short??

are you running the OEM roller lifters?

 

yes stock lifters. I even measured the pushrods.

 

Well anyways your ET looks like you hooked up great, but MPH would be a sign of low HP, Have you done any prom tuning for the combo?

 

stock prom

 

X_x



Well theres your problem

You increased air flow tremendously, and you're running a fair amount of lift/duraiton, and your ecm is hating you for it


$155 and you can dial it in where it belongs, and expand your horizons for the future.

 

man no offence but those times are really bad for all the work u have done. Im dipping between 13.8-13.5 with a stock cam and heads. must do a stall. must get a chip. dunno what else to tell ya. How fresh is your shortblock? Id expect mid-low 12's out of that combo.

 

Its all in the tuning

If you're running 10:1 Air Fuel ratio even AFR's aren't going to do any better for you.


Tune that thing and get some times you deserve.

 

Oh I know. I expected alot more. Block has 69,000 on it. My friend burns chips so he is going to help me out. I dont know if it was the track or anything, but there were a few LS1's running 13.9 and a C5 that went 14.2 lol. The only thing that went 12's was a 383 in a station wagon lol.

 

Wouldn't you say the TPI is choking those heads? Seems like the AFPR would help, since it controls fuel at WOT...as far as Air/Fuel ratio... Please correct me if I'm wrong.

Did you install the cam?
Seems like a properly installed cam, and a better breathing induction system, the planned Torque Converter and there's your 12s.

What exactly in the chip needs to be changed to take advantage of his setup? I realize that's a broad question, but only expecting a genralized answer.

 

Well I dont know if its a MAP or MAF car, But MAP doesn't take mods well without some PE and VE table corrections, MAF is a little better, but there does come a point in the game where MAF tables need a little love. But in both cases you need to make drastic timing chnages.

 

its MAF and I put in the cam. dot to dot.

 

MAF is the more forgiving of the two

Still you need to set it up for your injectors, and need to tweak your timing..

 

Get tunercat and a pocket programmer and u will believe :-)

I am on my 5th chip and have already made my car run better than certain named tuner proms :-)
later

 

I think that deeper gears and your stall, you'll be in the high 12's traction permitting.

 

What was your previous best time?

And did you get your oil consumption problem fixed?


Nick

 

Previous was 14.18@98.7


Oil Consumption slow down? Yea right. I'm going through it like water. Literally. I went though a quart after 100 miles. NO smoke just the white vapor on startup. (it was 36* degrees here today) Plugs look great. I pulled the runners and looked down into the ports and allll look beautiful. My front main is leaking a bit but doesnt look bad. I'm thinking that on highway RPM 2300 that the crankcase pressure is pushing it out. I replaced generic PCV with an GM CV789C PCV Valve (The correct one) I'm still cluelss.

 

MKOS I'm in Parma we should get together. I am just finishing up my 383 install.

 

I agree with everyone about the prom slowing you up a bit, but you also have the edelbrock headers. If im not mistaking they only come in 1-5/8 primaries, on a well built 350 like yours, you would be better off with the 1-3/4's. Plus you said knn filter, your not using the cone filter on the end of the throttle body are you? If so your motor is sucking up all the heat from the radiator, espesially after a 60 mile drive. And when you do the prom i reccomend a fan switch for the secondary fan too. Have em both come on about the same temps. just my 2 cents

 

Sounds good. go over to the 3rdgen.org board and go to the midwest section. We have about 10 of us who get together and ride. Anywhere from N. Royalton, middleburg hts, parma (over by VF HS) and a few on teh east side. We get together dam near every tuesday and sat night.


Other the other post, the cone on the TB is only available for the SD cars. I know the edelbrocks may be holding my back, but I see alot of guys getting deeper in ET's then me.

 

I know this may sound a bit stupid but have you done the port on the plenum yet? i hear that helps breathing some, also gutting the MAF should get you some more air too( i didn't see it in your mods so i was wondering) but all in all sounds like you got an awsome set up there. I would get that prom tuned for your combo and get your stall installed...Good luck

 

Not to dissapoint you Mkos but I had the exact same combo as you not too long ago. Even the exact same camshaft !! The best I could ever muster out of it was a 13.3 at 105. Not TOO bad but still WAY slow for how much money I had invested in it. Now I've "seen the light" and went with more cubes, more airflow (carb), and more cam. Running mid to high 11s currently.

 

:hail: carb

 

I point the finger to trick flow heads. Good for miniram/carb and not for LTRs. Did anyone read the article in GMHTP when they ran trick flow heads? You have about duplicated those mphs. Let us know improvments.