1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
49 Attachment(s)
Original Thread on www.************.com: http://www.************.com/forums/s...d.php?t=309921
Well the time has come for my personal build and swap. Its funny how I pushed so hard to re-introduce the H series motor swap for the 88-91 Preludes and I am the last one to actually benefit from it. LoL!!! The reason I chose the H23A swap is simply because of cost. I sourced an H23A non-vtec motor for $360. I bought Osvaldo516's H22 tranny(92-96) after his swapped to the 97-01 Tranny which by the way is probably the best for gas mileage hands down. At 85mph Osvaldo's RPM was like 3500-3800rpm, just sickness. I will eventuall swap to the H23VTEC BlueTop motor, but for now this will do just fine. My swap will take me a while as my track record shows, just due to being a family man first. I will update as I go along with pics of course and show the eventual results. I am the Project Manager of the new aftermarket for the 88-91 Preludes, and with the support of FaceTuned Tuning I now offer the new H/F motor and transmission swaps into the 88-91 Preludes specifically. https://lh4.googleusercontent.com/-j...%2B%285%29.jpg Not only am I a swapper, but I also sell these outstanding mounts with other aftermarket projects for the 88-91 Preludes Feel free to pm me or email me for more details on aquiring this kit. Email: 1funryd@comcast.net www.1funryd.com Here we go...... H23A(JDM NonVTEC) motor and specs: Donor Vehicle: JDM 92-96 Honda Prelude S Mileage: 25k-45k miles Displacement: 2258cc Valve train: 4 Cylinder, DOHC, 16 Valve Horsepower: 160 HP @ 5500 RPM Torque: 163 LBS-FT @ 4500 RPM Fuel Control: OBD-2 Compression: 9.8:1 Bore: 87.0mm Stroke: 95.0mm Redline: 7200rpm Update: 3-21-2010: The traction bar is a definite for all H22/23 swappers and just for those who want to stop wheel hop. I can tell you all right now this upgrade is another leaps and bounds upgrade for suspension. I took some real hard turns and between the Ksports and the 1FunRyd Performance Traction Bar and the Mustard Reproduction strut bars via Secludedluder, the lude has just jumped another notch for handling improvement. So without further adu, here are the pics: 1. https://lh3.googleusercontent.com/-L...ction+Bar.jpeg 2. https://lh6.googleusercontent.com/-b...ion+Bar-2.jpeg 3. https://lh4.googleusercontent.com/-K...ion+Bar-1.jpeg https://i53.photobucket.com/albums/g...TBInstall5.jpg Attachment 465029 Attachment 465030 Attachment 465031 Attachment 465032 Attachment 465033 I need to explain something about the install, the picture below shows you how far off your chassis could potentially be. Do not freak out about this, when I saw how bad mine was I thought it was over, but once I got the bolts on and started to torque them down, it pulled the chassis in so that the lower bolts can line up. Please understand, that the 1FunRyd Performance traction bar kit mocked this bar off a known good chassis with no damage, I found out that my chassis was damaged and slightly tweaked, so please understand that you may have to grind out the holes at times depending on your chassis condition. They can not account for this, it is the buyer responsibility to make sure to fix any chassis issues. But as you can see on the rest of the pictures, I was able to finagle the bolts in, but they were tight. Attachment 465034 Attachment 465035 Attachment 465036 Attachment 465037 Attachment 465038 Attachment 465039 Transmission choice: 5th gen base transmission for taller gearing on daily commutes. Attachment 465040 Attachment 465041 Attachment 465042 Raxle axles for the 88-91 Prelude H series swap: Attachment 465043 Here is my new clutch - XTD Brand off of ebay $113 shipped. Attachment 465044 Swap Day Sept 12, 2009: Pulling the B20A out, taking off all connectors and so forth, fluids were all drained the night before. Ok well I lied, only the coolant was drained, I forgot to drain the tranny and the oil. So some of it seeped out while the motor laid on its front end, before we could get a tire to sit it on. Attachment 465045 Attachment 465046 Attachment 465047 Attachment 465048 Engine out... Attachment 465049 Since this was an auto, we needed to add the Clutch Master Cylinder and hardline. There was a plastic covering where the holes were so it comes out easy and we just installed the CMC right in. And then we needed to run the hardlines across the firewall and clip the line to the firewall and passenger side frame. I sourced all parts from ebay and the local junkyards for the manual swap. Attachment 465050 Attachment 465051 We also needed to unbolt the rubber plug that covered the shift linkage path into the engine bay. Attachment 465052 Another thing that must be done to make the manual swap possible is to drill out the manual bolt holes. They do not come pre threaded so you must drill all the way through so you can install longer bolts and nuts and washers to bolt the AZ Race H22 tranny bracket to the frame. Attachment 465053 This is what it looks like after its drilled thru. Attachment 465054 Attachment 465055 TRanny Work: Dave used the 88-89 top half and mated it with his spare 90-91 bottom half and he used a broken bolt tab to secure the VSS down from popping out. Jdm3rdgenprlude used his old VSS by pushing it down into the H22 tranny and he had a working speedo. This route has been tested and it does work. My converted VSS has not popped out at high rpms or given me any trouble. However, I recommed that the powersteering hoses for those who use it, need to be really tight and secure or they will leak, like mine is doing right now. Attachment 465056 Newly converted VSS installed on the H22 base tranny(5th gen) allows the use of the manual speed sensor to be used, since this motor was OBD0 and does not have the electricall VSS plug. This is not an issue for those who chip and tune with another ECU if going the H22 route with VTEC for 90-91 OBD1 Preludes, but if using the OEM ECU like in my case the P14, then it will be necessary to either allocate a 90-91 Prelude interior and engine harness or just keep it manual for the Non-VTEC OBD1 motors, or purchase an Chipped and tuned ECU to engage the H22 VTEC solenoid by rpms. Attachment 465057 Attachment 465058 Interior work: Attachment 465059 Here is the preforrated hole where the stock shift linkage runs through to get to the engine bay, it was not hard at all to open up. Attachment 465060 In order to make things easier when trying to install the pedal assembly, it will be necessary to remove the steering column completely out, and disconnect it from the rack as well to make more room for installing the H23. Attachment 465061 Here we are test fitting the 4th gen shift assembly in order to make our cuts to bolt it down to the chassis. You want to do this in order to get the perfect positioning for shifting or you will have issues with grinding or gears not going in all the way. Attachment 465062 Make your marks on the center base and cut with dye grinder and use a ball pin hammer with some weight to hammer the metal down to get your position for the shifter assembly. You can use the stock bolt holes, but I decided to make my own in order to ensure the shifter assembly did not move at all. If using the stock threaded holes, you will need to drill and cut material off the shifter assembly base plate to get it right. The choice is yours. Before cutting and banging: Attachment 465063 And after cutting and banging: Attachment 465064 The final shifter assembly in place for test fitting. Attachment 465065 And here we put some insulation underneath the factory hole, to keep heat and exhaust out. I decided to go with the Accord shifter since it had a cover underneath the shifter arm, so that helped with sealing the hole better. Attachment 465066 Final resting place and bolted inplace. Attachment 465067 H23 and tranny going in!!!!!! Attachment 465068 Attachment 465069 Attachment 465070 With this swap, you always want start from Rear mount first. Attachment 465071 Then Tranny side mount. Attachment 465072 Attachment 465073 Attachment 465074 Then Driver side mount, and wala the engine sits nice and tight. Attachment 465075 And finally plugging the engine harness up to the interior harness. Attachment 465076 Here sits the H23A in the chassis of an 1988 Honda Prelude Si: Attachment 465077 Video of its first Startup and idle: My thanks goes out to: Dave Chris Osvaldo Ronald Huy With out my friends and fellow 3rd genners this would not have been possible. |
Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
very nice swap pics from start to finish from prelude forums.
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Originally Posted by oneroundflare
(Post 41182503)
very nice swap pics from start to finish from prelude forums.
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Congratulations. The H23 fits nice and snug. Brilliant mount kit.
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
dang very nice very nice!! it's funny, the only thing that has steered me away from ever buying a 3rd gen prelude was the b20/b21 motors in them...
do you by chance have an estimate of how much the swap cost you? looks good |
Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Great work. :beer:
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
good stuff especially for the cost which i'd guess would be around 1000$? :thumbup:
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Mounts are expensive but 2 other companies have jumped on board considering the success AZ racing has had with 3rd gen's.
My complete swap which was pretty much a "bolt in" setup was about 3500 bucks, about 4 years ago. |
Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Originally Posted by dagle
(Post 41184012)
good stuff especially for the cost which i'd guess would be around 1000$? :thumbup:
But I did the H23a swap not the H22, but All I have to do now is aquire the H23VTEC motor and pull the existing motor and swap the new one in because everything is already been set in place for swapping motors. No more wiring issues, just chipping an ECU and tuning. But for now I will run the H23A with a header and save up for the H23VTEC BlueTop. Just love being able to do the swaps now that I have done everything in place for the H motors. |
Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
i got mine from AZ and it would not have been possible with out 1funryd he's great and easy to deal with.
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Looks like it was quite a bit of work. Glad to see it running. Thank you for sharing, there's not much 3rd gen action here. :drink: Any noticeable difference in handling?
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Yes, very cool! You have been working on this for so long and it's so great to see your car finally get the treatment :) Makes me want to get a 3rd gen now....
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Originally Posted by PirateMcFred
(Post 41200475)
Looks like it was quite a bit of work. Glad to see it running. Thank you for sharing, there's not much 3rd gen action here. :drink: Any noticeable difference in handling?
Upgrading to the H series motors in these chassis is the only way to go in my opinion. Now thats not too say that a nice B18, B20B motor swap that is built could not make it just as fun, but I am more for starting with a higher torque range and keeping the Prelude Heart in its chassis. |
Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Originally Posted by Hawkze_2.3
(Post 41201839)
Yes, very cool! You have been working on this for so long and it's so great to see your car finally get the treatment :) Makes me want to get a 3rd gen now....
Well you see, that is the great thing about bringing the H aftermarket support to the 3GP, you just can't lose. :) |
Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
looking at these swap pics sure bring back memories......
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
bump for a great guy
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
bump for an excellent swap and setup!!!
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Bump... just because LoL!!!
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Nice bro.
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Nicely done Sean. Glad to finally see pics. Good job showing H-T what us 3gp owners are made of.
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Can't wait to see it with the JDM H23a...
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Originally Posted by minilogoguy18
(Post 41293420)
Can't wait to see it with the JDM H23a...
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Originally Posted by rash
(Post 41292503)
Nicely done Sean. Glad to finally see pics. Good job showing H-T what us 3gp owners are made of.
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
this looks like a fun little sleeper, how much does this car weigh? And if I must bench race, what do you think the 1/4 mile times would be?
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Re: 1FunRyd's 88-91 Prelude - Auto to 5 speed swap, B20A - H23 Non-VTEC swap
Originally Posted by autoluder
(Post 41297053)
this looks like a fun little sleeper, how much does this car weigh? And if I must bench race, what do you think the 1/4 mile times would be?
In stock trim, the H22 has produced mid to high 14's, from members who have done this swap and tracked it for time slips. I do not know what the H23a will produce on the track. Stock motor on the 3gp has been tracked at 17's, so big improvement. Boosting the B20a5 will be a different story altogether. |
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