Should be getting the car this week to get programmed I hope. Waiting on the guy that is going to program it to let me know when to bring my car to him.

The way it is right now the runs good just way rich and needs shift points improved and rough idle taken care of. I hope thats all it needs. Where before the swap it pretty much stopped at 5500 rpm now it seems to want to just keep on going past that.

Trying to get this done as soon as possible for myself and everyone else. But I have been laid off since end of January and money is super tight right now.

 

i hope we can get this PROM tunning done here real soon.i've been on Tracey about getting things in motion

 

Well, it possibly might be done by the end of August, I hope..... I'll keep you posted.

 

Just want to let everyone know what is happening now. The car feels like it has no top end limit, it just want to keep going. It makes power up to 6800 rpm, manually shifting. As of now the chip is being tuned by Scott Racing and Performance. He has the car now and took it to the track a couple times after tuning the chip. Last year the fastest I got the car was 14.7 at 91 mph. He run 14.7 at 93 consistantly a couple weeks ago. He cut off the cat this past week and says it revs like a modded 350 LT1. He feels that since the cat is off now and he can tune somemore on the chip it should be a 13 sec car. It ran so rich from when Ed programmed the chip that the plugs were fawled, (however you spell it) and the cat was clugged up. Might be too late now by the time I get it back to take it to the track, but I'm hoping to find a dyno open somewhere to get a couple runs in.

I'll keep you posted.

 

nice
do you know what all he is changing in the tuning? I'd like to know what all i might have to change as well.
i'm waiting for someone to buy my old tpi setup on ebay so i can fund the lt1 swap.

 

Nice to hear it pulls so hard. I've got my LT1 parts ready (all but the water/fuel hoses) and need to get my butt in gear to get them on it sounds like. Can't wait for the dyno numbers or times!!!

 

Oh come on now. Can we bring things back to reality. A stock LT1 cam and SR torquer heads are not making power anywhere near 6000 rpms let alone 6800.

Maybe thats why it's running neck and neck with a stock LB9. Try shifting it at a more reasonable 5500 and i bet the timeslips get better.

BTW, does the guy 'tuning' it know you have a cam with 204' of intake duration? If so, and the cracker is sppinning it to 6800 anyway, i would not let him anywhere near the car ever again. Only a moron would think a stock cam has any business turning nearly 7000rpms.

 

204 deg cam + SR torquer heads = 5500 rpm peak power limit TOPS. If I had to guess, I'd say the power falls off FAST above 5000 rpm.

Where did those numbers come from? If you ever had that car on a dyno, you'd know that it ain't making power above 6k. I don't care if you have a bad-*** Pro stock sheetmetal tunnel ram designed for a 600 ci engine, that set-up will not make power up that high. The intake alone does not define your powerband.

Oh... BTW... even with mad wheelspin, that car does not have much more ET in it with a 93 mph trap speed. Furthermore, my heavy 'slug 95 GT with a BONE STOCK silencer-to-headers 5.0 hits that MPH, so forgive me if I am not impressed with statements about how hard it pulls.

 

Yea, that cam is about done at 5500. Shifting past there doesnt make much sense. Sure hope thats not how you are trying to get the best ET, not going to happen that way.

 

Have to agree with these guys. Try changing the shift points around the 5500 range.

I also call foul on it pulling to 5500 BEFORE the swap. Ive never been in any TPI car, stock or modified, that pulled anything much past 4500 rpms.

Nature of the best.

Good luck

 

Hey Ron i also got my 305 lt1 running a little better.pulled a 14.3 at 98 mph with a crappy 2.25 60footer it was pretty much spining all through first. I still have the chip that ed burned for me for my modded tpi and i will be doing my own chip this winter to really help it out. By the way what size injectors are you using ron.

 

stock cam should be spinning past 5500, plus the car isnt pulling that high

 

Guido - I wish I could take you for a ride in my car! It pulls hard to 5,500 - 5,600 (where I shift) and dont feel ANY power loss at all in that RPM range. But, I've ported the whole setup from plenum to base. I believe my dyno results will show peak power on my setup at arround 5,300 - 5,500. But, we'll see!

 

6800? Sure they didnt accidently ship you on of dem der 3/4 race cams?

1bad91z I think you missed guidos point.... 6800 rpms with a LT1 cam?

 

If you read what he said, he said:

Yea, my motor is highly modified, but it's still a LTR TPI motor!

 

My bad, typo, 5800 rpm. Sorry for the confusion. Still have the stock injectors in it for now.

 

interesting thread.....
Just throwing my .02 out there so I can subscribe to this thread.

Dan

 

Ron when i ran mine i was shifting it at 5500 but it would not hesitate going to 6200.I have the exact same setup as you ron the only thing different is my camshaft is a little bigger.I think with the intake a much bigger cam is needed to take advatage of the high rpm horsepower.I think that cam you have is a little small for the setup.but keep it going and see where it takes you.Oh and by the way when i switch from the auto to a stick,I dropped 5 tenths and went 5 mph faster everything else being the same.the 3.73 gears matched up better the the 5 speed then the auto.just something to think about.

 

I think the LT4 Hot Cam would be a much better choice for the LT1 intake mod. This is exactly what I am planning on installing on top of my 400sbc I am building. The poor old TPI LTR setup will do nothing but choke the higher cube engine. I plan on using "Brodix Track 1's" The LT1 intake mod with a 52mm single blade TB and 26# injectors with 150hp shot of NOS. Should be interesting with my 2900 lb Monte SS. But I still have lots to learn to do this engine so that it performs as it should. But John Millican is the man for these types of engine mods!! Keep up the great work John!!! :hail:

 

Yeah I kindof wish I'd have went with a bigger cam but this one was super cheap and couldn't pass it up at the time. I got the car back today, drove it home. I like it alot. Redtail2624 your right about the rpm's, just seem like it wants to keep going. The guy found out that the fuel pressure regulator was leaking fuel into the intake through the vac line thats why, he thinks, it would only run the 14.7's. Not sure, so don't everyone get all bent out of shape. He does think it's a faster car than 14.7, lets put it that way.

 

What did you put your timing at when you ran that.What i noticed with mine when the automatic was still in is when the timing was at 6 or 8* it ran good and pulled nice up top but then i saw an article on ram style intakes and timing and there test car was running much better with 12 and even better with 14* of timing.I felt it was a little much but said what the hell, i tried it myself and it really made a big difference and i picked up a lot of midrange torque(feels like the tpi almost)and pulled even harder up top.the timing plays a big role when you make such a drastic intake change the lt1 loves cam and timing.

 

I'll find out for sure and let you know what my timing is set at.