Spawne's supercharged B20, sponsored by DDTECH
I've had more then my share of distributor problems myself. Been through 2 in my last two races. I can tell you rebuilding them between rounds is not fun... Good luck.
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I was having the problems with the heatsoak on the other one over the beginning of the summer, and I knew the only solution was to replace the distributor, so I could only afford a reman at the parts store at the time, and I knew as soon as I got it and saw the OEM hitachi ICM still in it that it would have a problem down the road.
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first vid from the track
next time I go i hope to be in the mid 14's, when we sort out the rest of the issues I hope to put a 13 in front of that decimal, by then i think the blower will be out of gas at the rate its eating up the boost, whether or not i overdrive it again with a CRV pulley or just jump to a small turbo has yet to be decided. Have to see how it handles it. Right now its seeing about 5.5psi during the day and closer to 6psi when it gets down into the 70's ambient at the track with the MVM stepper only.
next time I go i hope to be in the mid 14's, when we sort out the rest of the issues I hope to put a 13 in front of that decimal, by then i think the blower will be out of gas at the rate its eating up the boost, whether or not i overdrive it again with a CRV pulley or just jump to a small turbo has yet to be decided. Have to see how it handles it. Right now its seeing about 5.5psi during the day and closer to 6psi when it gets down into the 70's ambient at the track with the MVM stepper only.
I could run faster than that.
j/k
I've never really been that interested in superchargers personally but your auto beast is pretty cool. It's something very different I guess...
I'm interested to see the dyno graph when it all done.
j/k I've never really been that interested in superchargers personally but your auto beast is pretty cool. It's something very different I guess...
I'm interested to see the dyno graph when it all done.
This is a very cool build. a friend of mine built a N/A F22 with an auto trans, I don't think he ever ran it at the drag strip though. It's nice to see another crazy build with an auto trans. Definately subscribed for updates
Also I have Crower 404's, are your DDTECH cams larger? I wouldnt mind have bigger cams than what I have now.
Also I have Crower 404's, are your DDTECH cams larger? I wouldnt mind have bigger cams than what I have now.
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No, crower 404's are bigger. Doesnt need huge cam's on the supercharger though, i only make about 6psi on the new motor.
Coming from someone who did the whole JRSC thing a while back, looks great man.
What happens is you spend all this time and money doing the JRSC thing trying to find the limits of it, then you throw a small turbo on the car and make up all of that power + more lol.
What happens is you spend all this time and money doing the JRSC thing trying to find the limits of it, then you throw a small turbo on the car and make up all of that power + more lol.
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lol i knew it was gonna happen, but i love the supercharger, that obnoxious when when your on the street and people want to **** with you and then the confused look on their face because they dont understand why the car next to them is suddenly screaming at them. Turbo was just too subtle for me.
lol i knew it was gonna happen, but i love the supercharger, that obnoxious when when your on the street and people want to **** with you and then the confused look on their face because they dont understand why the car next to them is suddenly screaming at them. Turbo was just too subtle for me.
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i dont think i ever posted the part throttle pull on the dyno, lol we never even recorded the WOT pulls because of the problems we had
I'll be sending Rob, a set of hardwelds to do some testing on, i expect them to be done by the end of this week. They'll be bigger then his regrinds, and a better overall profile for the setup, without the limitations of a regrind.
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Things like this take a bit of trial and error, its a game of how much effort you wish to put forth for something you may in the end change. Now your starting to see the whole picture, lessons are best learned this way.
-Not being a Dick
-Not being a Dick
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So I feel this thread finally deserves a bit of an update.
If you haven't guessed already from the obvious lack of posts, the results turned out to be far less spectacular then I had originally planned for them to be, in fact, so bad that I was completely and utterly humiliated and embarrassed, and the whole project left me with more questions then it did answers.
I had the car dyno'ed back in september over at RSTECH in atco, nj with randy shoener, some of you may have heard of him, some of you not. His team of racers has some of the fastest car's around in my area for honda's, so I felt it only be in my own best interest to have him tune and evaluate the car. The automatic honda was a relatively new thing to him, so we spent about an hour doing trial and error to make sure what we were seeing on the dyno was entirely accurate. Long story short, the base run on the dyno when I drove it in put down a whopping 142hp. After I regained consciousness after that first run (joking), we did some checks to verify that it wasnt the dyno running the incorrect ratio from doing the pulls in second gear, we verified this by doing some short pulls in 3rd without the car trying to automatically downshift, and wound up coming out with almost the same result every time. We also pinned down a very specific problem I was having in my valve train, which ill get to in a minute. We discussed alot of different scenarios on what could possibly be the issue, whether the clutch plates inside the trans were slipping or whether or not there was a problem with the motor, or just an overall loss of power in general through the trans. Finally after alot of discussion it was leaning towards an issue with the cams. There was a whole heck of alot of noise coming from the valve train after 3 different valve lash adjustments I had done on the car prior to bringing it in, and it just wasnt making the kinda lopey race car type sound that we had both expected from the cam profile I was going to have. After it was all said and done, randy wound up finding an extra 37hp in the tune and put me up to a whopping 179whp.

So i called derek that night and discussed with him what happened, and we both kinda agreed that alot more in the way of investigation needed to be done as to what the **** went wrong here. The first thing I wound up finding was that the regrind cams turned out to be seriously wrong. So much material was removed from the base circle of the cam that it threw the rocker geometry so out of wack that it was only touching the back end of the rocker pad and there was almost no more adjustment left in the lash screw to try to change this. This was the horrific noise the head was making and the reason for the general lack of cam sound, as the profile was just not making it all the way to the valve at all. I informed derek of this and he promised to make a new set of cams for the car, which I was very thankful for, but unfortunately due to unforeseen circumstances related to hardwelding more material on the cam's, this would not be corrected. (derek can elaborate more on the nature of non vtec cam's) So I opted to go with crower 402T's instead.
The crower cam's I wound up going with were a complete shot in the dark, I didnt want to raise the powerband so high above 7000rpm that it would be unusable, as the automatic will only rev out to 7600-7700rpm's, and crower had claimed that this cams would make excellent mid range power for my setup. However after installing the cams I only saw a 3% increase in overall fueling requirements. Which unfortunately after all the testing, yielded a net gain of .2 seconds at the track.
These issues began to wreak havoc with my confidence about the integrity of the motor now, so I decided to compression test the motor at least 4 different times over the 3 months, and too much surprise, compression is actually LOW. I'm only seeing about 220psi across all 4 cylinders. Which now gives me even graver concerns as to what the actual problem is, after a long discussion with muckman about what could be the issue here, I now have concerns that the valve guides on this P8R which already had bad seats when I bought it, are actually bad. Slowly but surely im losing compression threw an increasingly poor sealing valve seat on both sides of the head. What should be 11:1 compression is now effectively only 10:1 compression if that, that is only being now aggravated by the fact that Im using .469 lift cams and very strong dual springs which are slamming the valve shut extremely hard.
I also have begun evaluating the swap to a turbo, a small turbo, something along the lines of the super 60. While the M45 is still making roughly 7psi on this setup, its efficiency is now in the toilet according to eaton's efficiency maps, heat output is becoming an ever obvious problem during the summer where my power seems to drop 20-30hp depending on whether or not the ambient temp varies 10 degrees in either direction. The whole project is just being plagued with all sorts of problems.
Over the next few months I have alot of work to do, I picked up a new P8R head, that has a much more aggressive port and polish, that will be flow benched to verify that my gains are actually there for the cam's. Should I decide to upgrade down the road, I want to be certain that the head will be able to support it as well. I need to verify that my compression was calculated properly with the given chamber size in the head. I also need to verify that there is no damage to the cylinder walls due to piston slap, because on a cold day this thing is problem the noisiest motor ive ever heard in my life. So there is a whole boat load of concerns that need to be checked out, but hopefully in the spring time this beast finally turns into the animal it should be.
For the moment though Ill have to be content running 14.6 and picking on 5spd b16 civic's on the street.
If you haven't guessed already from the obvious lack of posts, the results turned out to be far less spectacular then I had originally planned for them to be, in fact, so bad that I was completely and utterly humiliated and embarrassed, and the whole project left me with more questions then it did answers.
I had the car dyno'ed back in september over at RSTECH in atco, nj with randy shoener, some of you may have heard of him, some of you not. His team of racers has some of the fastest car's around in my area for honda's, so I felt it only be in my own best interest to have him tune and evaluate the car. The automatic honda was a relatively new thing to him, so we spent about an hour doing trial and error to make sure what we were seeing on the dyno was entirely accurate. Long story short, the base run on the dyno when I drove it in put down a whopping 142hp. After I regained consciousness after that first run (joking), we did some checks to verify that it wasnt the dyno running the incorrect ratio from doing the pulls in second gear, we verified this by doing some short pulls in 3rd without the car trying to automatically downshift, and wound up coming out with almost the same result every time. We also pinned down a very specific problem I was having in my valve train, which ill get to in a minute. We discussed alot of different scenarios on what could possibly be the issue, whether the clutch plates inside the trans were slipping or whether or not there was a problem with the motor, or just an overall loss of power in general through the trans. Finally after alot of discussion it was leaning towards an issue with the cams. There was a whole heck of alot of noise coming from the valve train after 3 different valve lash adjustments I had done on the car prior to bringing it in, and it just wasnt making the kinda lopey race car type sound that we had both expected from the cam profile I was going to have. After it was all said and done, randy wound up finding an extra 37hp in the tune and put me up to a whopping 179whp.

So i called derek that night and discussed with him what happened, and we both kinda agreed that alot more in the way of investigation needed to be done as to what the **** went wrong here. The first thing I wound up finding was that the regrind cams turned out to be seriously wrong. So much material was removed from the base circle of the cam that it threw the rocker geometry so out of wack that it was only touching the back end of the rocker pad and there was almost no more adjustment left in the lash screw to try to change this. This was the horrific noise the head was making and the reason for the general lack of cam sound, as the profile was just not making it all the way to the valve at all. I informed derek of this and he promised to make a new set of cams for the car, which I was very thankful for, but unfortunately due to unforeseen circumstances related to hardwelding more material on the cam's, this would not be corrected. (derek can elaborate more on the nature of non vtec cam's) So I opted to go with crower 402T's instead.
The crower cam's I wound up going with were a complete shot in the dark, I didnt want to raise the powerband so high above 7000rpm that it would be unusable, as the automatic will only rev out to 7600-7700rpm's, and crower had claimed that this cams would make excellent mid range power for my setup. However after installing the cams I only saw a 3% increase in overall fueling requirements. Which unfortunately after all the testing, yielded a net gain of .2 seconds at the track.
These issues began to wreak havoc with my confidence about the integrity of the motor now, so I decided to compression test the motor at least 4 different times over the 3 months, and too much surprise, compression is actually LOW. I'm only seeing about 220psi across all 4 cylinders. Which now gives me even graver concerns as to what the actual problem is, after a long discussion with muckman about what could be the issue here, I now have concerns that the valve guides on this P8R which already had bad seats when I bought it, are actually bad. Slowly but surely im losing compression threw an increasingly poor sealing valve seat on both sides of the head. What should be 11:1 compression is now effectively only 10:1 compression if that, that is only being now aggravated by the fact that Im using .469 lift cams and very strong dual springs which are slamming the valve shut extremely hard.
I also have begun evaluating the swap to a turbo, a small turbo, something along the lines of the super 60. While the M45 is still making roughly 7psi on this setup, its efficiency is now in the toilet according to eaton's efficiency maps, heat output is becoming an ever obvious problem during the summer where my power seems to drop 20-30hp depending on whether or not the ambient temp varies 10 degrees in either direction. The whole project is just being plagued with all sorts of problems.
Over the next few months I have alot of work to do, I picked up a new P8R head, that has a much more aggressive port and polish, that will be flow benched to verify that my gains are actually there for the cam's. Should I decide to upgrade down the road, I want to be certain that the head will be able to support it as well. I need to verify that my compression was calculated properly with the given chamber size in the head. I also need to verify that there is no damage to the cylinder walls due to piston slap, because on a cold day this thing is problem the noisiest motor ive ever heard in my life. So there is a whole boat load of concerns that need to be checked out, but hopefully in the spring time this beast finally turns into the animal it should be.
For the moment though Ill have to be content running 14.6 and picking on 5spd b16 civic's on the street.
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I realy hope you get to see the power out of this as it been a long raod
I just had myn retuned the other day with good results
power came up
..but like you im chasing the missing 30HP .. i know is hiding in there
I just had myn retuned the other day with good results
power came up
..but like you im chasing the missing 30HP .. i know is hiding in there
There's certain limitations on regrinding cams to begin with. With this setup, we tried to push the issue, and it did "ok" but wasn't the results any of us were expecting. LS cams are hollow and hardwelding to go bigger just created a bigger problem(new ls oem cores). Hardweld kept cracking and i wasn't about to send that out to a customer knowing the quality wasn't up to my standards.
Some companies can access ls cam cores that are new for cheapers then others, Its very hard for me to come across them because i dont buy in bulk like Crower does. I dont do alot of non-vtec stuff to begin with, so it was already on the end of what i could do. I got something up my sleeve though for Rob, hopefully in the next few weeks i'll be able to get new ls cores for a reasonable price and my grinder and I can get to work. The car is strong for what it is, and its a solid setup.. I think there's alot more in it, besides the problems he's been experince.. I think an open header pull will help along with some cam gear adjusting as well..but we'll see. If anyone is curious, i did refund rob his money, until i could properly do him justice with a killer, non-vtec cam. I stand by my products and always will, thats what makes me different.
Some companies can access ls cam cores that are new for cheapers then others, Its very hard for me to come across them because i dont buy in bulk like Crower does. I dont do alot of non-vtec stuff to begin with, so it was already on the end of what i could do. I got something up my sleeve though for Rob, hopefully in the next few weeks i'll be able to get new ls cores for a reasonable price and my grinder and I can get to work. The car is strong for what it is, and its a solid setup.. I think there's alot more in it, besides the problems he's been experince.. I think an open header pull will help along with some cam gear adjusting as well..but we'll see. If anyone is curious, i did refund rob his money, until i could properly do him justice with a killer, non-vtec cam. I stand by my products and always will, thats what makes me different.
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I'm confident the power is there, I know this build with this supercharger is capable of 200-210 at the wheels. I can easily reference that from someone I know locally who copied my setup, he has a JRSC kit on a bone stock B18B in a 2000 teg, automatic transmission that is bone stock, and an ebay header, exhaust and intake pushing 7-8psi, and put down 184whp. There is absolutely no reason why my car should put down less. I just hope it doesnt wind up costing me the entire motor.
didn't read the whole post. sorry, time constraints. But I did look at your parts list. The header, if you haven't changed it, sucks (narrow 4.2.1) I have the same one on my b16b with jrsc. I originally had a Hytech style 2.5 inch Tri-y pushing into 2.5 inch HKS Windmaster exhaust. Changed the header to that PLM narrow 4-1 2.5 in my case, and a much quieter Yonaka Motorsports quiet 2.5 exhaust, basically just from the gas tank back (over axle compared to under axle of the HKS). I lost a good bit of power, although its quieter now so i'm still happy. Went from 248/160 to 233/153 at about 11-12 psi stock internals, mvm stepper, hondata, rc injectors. Tuned by Jim at Motorvations lol.
I'm going to be changing it all back out for a better tri-y design and free flowing exhaust soon. Looking at the Skunk2 megapower series, but haven't settled on anything yet.
I'm going to be changing it all back out for a better tri-y design and free flowing exhaust soon. Looking at the Skunk2 megapower series, but haven't settled on anything yet.
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I have considered changing the header, but only as a last step to make extra power next to all the other things that need correcting first.
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