EFI blower conversion done - Off for a Dyno tune now!

68EFIvert · Feb 5, 2008

EFI blower conversion done - Dyno finally DONE!!!

Thanks to all you guys with the help on all the supercharger questions over the last month and a half. Well it is off to the dyno. They will have to chase down a couple bugs first and if all goes well they will dyno tune the car. They are going to chip it for me. I expect it will take a couple days for them to work it in the other projects they have going on.

I know there is a belt alignment problem. The place that put on my PS pulley put it on too far. It is about 1/3" too far and now the belt comes off. Pretty easy fix and I hope that is all. I know the engine starts but I had to turn it off right away because of the belt. I couldn't even time the engine. Wish me luck. I am hoping for 450 RWHP.

12sec67 · Feb 5, 2008

list up your specs ... so we can all take a guess on dyno numbers

68EFIvert · Feb 5, 2008

Here are the specs.

306 ci balanced, Vortech V2 SQ superhcarge putting out 8-10 psi, AFR 165, 1.7 rr, Typhoon intake, 42 lb injectors, Ligtening MAF, E303 cam, Headman long tubes, 2.5" flowmaster 50 exhaust, MSD coil, smog pump and AC eliminator pulleys.

I think that is all of it.

bnickel · Feb 5, 2008

i'm guessing 420 to the wheels

NasaGT · Feb 5, 2008

I bid 437 rwhp

Bosscat · Feb 5, 2008

SQ's are a little less power, I would say 400 to the wheels. What pulley, a 3.33?

Also, my old engine was set up very close to that one except it was a straight S-Trim, and I used 30lbs injectors, not sure why you went with 42s?

68EFIvert · Feb 5, 2008

The pulley is a stock size pulley. I am not sure of the size other than it puts out 8-10 psi. I think it may be slightly smaller than 3.33" though. When I measured it IIRC it was about 3.1-3.2". I went with 42 lb injectors at my tuners suggestion. They said it will give me room to grow (smaller pulley ect.) and since they will make a chip for my car they can fine tune the programming.

I went over there a few minutes ago and it looks like they may have solved the belt problem but evidently there is a coolant leak they now have to chase down. I can feel my wallet getting thinner as I write this.

Bosscat · Feb 5, 2008

68EFIvert said:
The pulley is a stock size pulley. I am not sure of the size other than it puts out 8-10 psi. I think it may be slightly smaller than 3.33" though. When I measured it IIRC it was about 3.1-3.2". I went with 42 lb injectors at my tuners suggestion. They said it will give me room to grow (smaller pulley ect.) and since they will make a chip for my car they can fine tune the programming.

I went over there a few minutes ago and it looks like they may have solved the belt problem but evidently there is a coolant leak they now have to chase down. I can feel my wallet getting thinner as I write this.

Do you have a stock 302 block? Yes, I know you need room to grow, its just that your block will need to be able to hold the power.

68EFIvert · Feb 5, 2008

I do have a stock crank, block and rods. When I had it bored .30 I had them balance it so perhaps that will help some. I know I will be on borrowed time if I go too far but I am already planning on a blower shortblock at some time. Perhaps sooner than later.

I suspect I may have problems with my tranny first or clutch before the block though. I have a t5 out of an 88 but I have been told that if I don't drop the clutch too much and stay away from slicks I will likely be ok. If it does blow I will rebuild it to g force specs at that time.

This car is really intended to be a cruiser that will be fun to drive. Being a convertible, I don't want to go so far I can't drive the car or twist the body. If I only end up with 400 hp I am cool with that. It will still be enough to scare the living @#%* out of me.

iskwezm · Feb 5, 2008

Im gonna say 415 to the wheels

10secgoal · Feb 5, 2008

68EFIvert said:
I went over there a few minutes ago and it looks like they may have solved the belt problem but evidently there is a coolant leak they now have to chase down. I can feel my wallet getting thinner as I write this.

Yeah. Just dynoed one today and same thing. We needed to put a new dist in it because the timing was all over the place. By the time we got it, bought the new steel gear and put it on, his dyno day wasn't as cheap as he thought.

Gonna guess 375-390 rwhp

Bosscat · Feb 6, 2008

68EFIvert said:
It will still be enough to scare the living @#%* out of me.

Before I did anything else, a stout roll bar/cage would be installed

68EFIvert · Feb 7, 2008

They got the car running today and have to deal with a couple oil leaks by the sender and fuel leaks on a Y block (splitter for my dual fuel pumps) before they can dyno it.

I also found out that the engine bracket that holds my AC eliminator pulley is having some vibration issues at RPM. I am not sure how I am going to fix this. One option would be to install an ac compressor (for my future ac addition). That would tie it into the block and eliminate the vibration. The only problem is I don't have the original 5.0 AC brakct where it mounted on the head and the fact a polished compressor is $250.

Speed costs money and this is getting VERY expensive!!!!!! Too late to turn back now.

Good news is they have chipped it and the car is running. They want to take care of these little things before final tune/chip and a dyno run. I will keep you guys posted.

mustang6tee8 · Feb 7, 2008

370 bob

red65 · Feb 8, 2008

68EFIvert said:
Here are the specs.

306 ci balanced, Vortech V2 SQ superhcarge putting out 8-10 psi, AFR 165, 1.7 rr, Typhoon intake, 42 lb injectors, Ligtening MAF, E303 cam, Headman long tubes, 2.5" flowmaster 50 exhaust, MSD coil, smog pump and AC eliminator pulleys.

I think that is all of it.

I made 445rwhp 427ft-lb on a pretty similar setup. Good luck getting the loose ends tied up - driving that car's going to be a blast! Your T-5, btw, is toast - you might as well start figuring out what you're going to do to replace it.

68EFIvert · Feb 15, 2008

I got a preliminary tune done and it is a little disappointing so far. I am making Low 300's hp and mid 300's torque at 6 psi. They said the psi is likely low because of good heads and intake combo. I asked them to put on a new pulley and to get it closer to 10 psi. They are going to order it and try it again next week. I would love to see 400. I think that will be pushing it though. They are having problems with the spark blowing out at high rpm's which I am sure why the numbers look low. They will check a couple things first but I may be investing in an MSD box soon.

My pulley now is the stock one, what ever size that is but I think it is about 3 1/4". Do you guys know what size pulley I would need to get the boost I am looking for?

I will post the specific numbers next week when the pulley arrives. The good news is they said that the drive train looks good. WHEW!!! My first engine rebuild is successful so far.

Bosscat · Feb 16, 2008

Are you running a 6 or an 8 rib.

If I was to be running your combo, and I knew I was not slipping at 6psi (which I doubt you are), 8 rib 2.95 with a tensioner, that is if you have a 3.25 right now.

68EFIvert said:
I got a preliminary tune done and it is a little disappointing so far. I am making Low 300's hp and mid 300's torque at 6 psi. They said the psi is likely low because of good heads and intake combo. I asked them to put on a new pulley and to get it closer to 10 psi. They are going to order it and try it again next week. I would love to see 400. I think that will be pushing it though. They are having problems with the spark blowing out at high rpm's which I am sure why the numbers look low. They will check a couple things first but I may be investing in an MSD box soon.

My pulley now is the stock one, what ever size that is but I think it is about 3 1/4". Do you guys know what size pulley I would need to get the boost I am looking for?

I will post the specific numbers next week when the pulley arrives. The good news is they said that the drive train looks good. WHEW!!! My first engine rebuild is successful so far.

68EFIvert · Feb 16, 2008

I have an 8 rib now. Thanks for the help. I also forgot to mention he said I need to look at getting a bigger air filter. I am currently running a 6" cone filter from K&N. Space is very limited without doing a custom tube with a filter in front of the radiator. I think I could fit a oval filter as long as it has an offset inlet. I am having a hard time locating one that will work though. I need it to be about 6" x 9" in the oval part and the same 6" long. The inlet has to be 4" and offset to work. If you guys have any ideas on this one I would appreciate it.

This is as close as I can find but I need an offset inlet.

http://www.knfilters.com/search/product.aspx?Prod=RF-1040

Does anyone know a place that makes custom air filters to specific dimensions?

red65 · Feb 16, 2008

68EFIvert said:
They are having problems with the spark blowing out at high rpm's which I am sure why the numbers look low. They will check a couple things first but I may be investing in an MSD box soon.

The MSD box is a fine idea, but setting your plug gaps correctly is the first thing to do. Set them around 0.032" - gaps in that neck of the woods perform well with the S/C and stock TFI ignition (did on mine, anyway, at 9-10psi up to 6,300RPM and made the HP numbers I mentioned earlier). When mine started exhibiting the same behavior, the dyno guy, completely inexplicably, wasn't aware that setting the plugs gaps could resolve the problem. He suggested floating valves (?!?!) You're on your own once you've gone far enough down this path - that's why forums like this one are so valuable.

68EFIvert · Feb 16, 2008

That is the first thing he was going to do after the pulley arrives. I set the gaps at 35 but it looks like that was too wide. I will relay the info to him but it looks like he has things under control.

EFI blower conversion done - Off for a Dyno tune now!

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